Open Access

FindUtils Tool API

An open REST API for FindUtils tools. No API keys. No sign-up. Just HTTP.

300

REST tools

298

MCP tools

0

Auth steps

Live usage

Aggregate, anonymous activity across the Tool API. No personal data.

Base URL
https://api.findutils.com/api

Quick Start

Make your first request in seconds. No setup required.

bash
# Encode text to Base64
curl -X POST https://api.findutils.com/api/tools/base64/execute \
  -H "Content-Type: application/json" \
  -d '{"text": "Hello, World!", "action": "encode"}'

Browse every tool

309 tools, 300 over REST and 298 over MCP. Open one to see its input schema, a verified example request, and the matching MCP call.

309 tools

Data

47 tools

Api Docs Generator

REST MCP

Return API documentation generated from a list of endpoints, as Markdown (with table of contents, request/response examples) or as an OpenAP

POST /api/tools/api-docs-generator

Csv To Json

REST MCP

Parse CSV text into an array of objects keyed by the header row.

POST /api/tools/csv-to-json

Graphql To Typescript

REST MCP

Convert a GraphQL SDL schema into TypeScript type definitions and return the generated code with counts of emitted types, enums, and inputs.

POST /api/tools/graphql-to-typescript

Html Table To Json

REST MCP

Convert an HTML <table> into JSON — an array of objects keyed by the header row, or an array of row arrays.

POST /api/tools/html-table-to-json

Jq Playground

REST MCP

Returns the result of running a jq-style filter over a JSON document.

POST /api/tools/jq-playground

Json Comparer

REST MCP

Returns a git-style line diff of two JSON documents after both are pretty-printed with 2-space indentation.

POST /api/tools/json-comparer

Json Diff

REST MCP

Returns the semantic differences between two JSON documents as a list of added, removed and modified paths with their old and new values, pl

POST /api/tools/json-diff

Json Faker

REST MCP

Returns an array of fake JSON records built from a field list, for testing and prototyping.

POST /api/tools/json-faker

Json Flatten

REST MCP

Flatten a nested JSON object into a single-level map with dot-separated keys.

POST /api/tools/json-flatten

Json Format

REST MCP

Pretty-print JSON with the requested indentation (1-8 spaces).

POST /api/tools/json-format

Json Minifier

REST MCP

Minify JSON to a single line with no whitespace and return the compact text plus original size, minified size (bytes), and reduction percent

POST /api/tools/json-minifier

Json Path Finder

REST MCP

Returns every match of a JSONPath expression in a JSON document: the concrete path and value of each match, the match count, and a convenien

POST /api/tools/json-path-finder

Json Query

REST MCP

Extract a value from JSON via a dotted path.

POST /api/tools/json-query

Json To Bootstrap Form

REST MCP

Returns Bootstrap 5 form markup generated from a JSON form schema ({ formId?, layout?, method?, action?, fields: [...], submitText? }).

POST /api/tools/json-to-bootstrap-form

Json To Chart

REST MCP

Render a bar, line, or pie chart as an SVG string from JSON data of the form {"title","type","data":[{"label","value","color?"}]}.

POST /api/tools/json-to-chart

Json To Csv

REST MCP

Convert a JSON array of flat objects into CSV.

POST /api/tools/json-to-csv

Json To Email Template

REST MCP

Generate a responsive, table-based HTML email (header, greeting, body paragraphs, button, footer, unsubscribe link) from JSON such as {"titl

POST /api/tools/json-to-email-template

Json To Go Struct

REST MCP

Returns Go struct definitions (as source text) generated from a JSON object.

POST /api/tools/json-to-go-struct

Json To Java Class

REST MCP

Generate Java POJO class source code from a JSON object.

POST /api/tools/json-to-java-class

Json To Markdown Table

REST MCP

Convert a JSON array of objects to a GitHub-flavoured Markdown table.

POST /api/tools/json-to-markdown-table

Json To Org Chart

REST MCP

Generate nested HTML for an organisation chart from JSON of the form {"title","root":{"name","title","avatar","children":[...]}}.

POST /api/tools/json-to-org-chart

Json To Pricing Table

REST MCP

Generate the HTML for a pricing table (div.pricing-container with .pricing-card/.plan-features classes) from JSON of the form {"title","curr

POST /api/tools/json-to-pricing-table

Json To Product Card

REST MCP

Generate an e-commerce product card from JSON such as {"name","price","originalPrice","currency","rating","reviews","badges"} in one of 6 te

POST /api/tools/json-to-product-card

Json To Profile Card

REST MCP

Generate a profile card for team pages and portfolios from JSON such as {"name","title","company","location","email","bio","skills","social"

POST /api/tools/json-to-profile-card

Json To Python Class

REST MCP

Generate Python class source code from a JSON object as a dataclass, a Pydantic model, or a plain class.

POST /api/tools/json-to-python-class

Json To React Form

REST MCP

Return a typed React (TSX) form component generated from a JSON schema of fields — inputs, textarea, select, checkbox, radio — with useState

POST /api/tools/json-to-react-form

Json To Readme

REST MCP

Generate a README.md (title, shields.io badges, description, demo/docs links, features, installation, usage, contributing, author, license)

POST /api/tools/json-to-readme

Json To Social Card

REST MCP

Generate a social-media / Open Graph card (1200x630 aspect) from JSON such as {"title","description","author","date","siteName","tag","backg

POST /api/tools/json-to-social-card

Json To Tailwind Form

REST MCP

Generate React JSX for a Tailwind CSS styled form from a JSON form schema.

POST /api/tools/json-to-tailwind-form

Json To Testimonial Card

REST MCP

Generate a testimonial / review card from JSON such as {"quote","author","title","company","rating","date","highlighted"} in one of 6 templa

POST /api/tools/json-to-testimonial-card

Json To Timeline

REST MCP

Generate the HTML for a timeline (div.timeline with .timeline-event/.event-marker/.event-content classes) from JSON of the form {"title","or

POST /api/tools/json-to-timeline

Json To Typescript

REST MCP

Generate TypeScript interfaces or type aliases from a JSON sample.

POST /api/tools/json-to-typescript

Json To Url Params

REST MCP

Convert a JSON object into a URL query string that starts with "?".

POST /api/tools/json-to-url-params

Json To Xml

REST MCP

Convert a JSON value to XML.

POST /api/tools/json-to-xml

Json Unflatten

REST MCP

Unflatten a dot-keyed flat object into a nested JSON object.

POST /api/tools/json-unflatten

Json Visualizer

REST MCP

Return a text tree outline, structure statistics, and JSONPath list for a JSON document.

POST /api/tools/json-visualizer

Json Yaml Converter

REST MCP

Convert JSON to YAML or YAML to JSON and return the converted text.

POST /api/tools/json-yaml-converter

Markdown Table Generator

REST MCP

Build a GitHub-flavoured Markdown table and return the markdown string.

POST /api/tools/markdown-table-generator

Markdown Table Parse

REST MCP

Parse a GitHub-flavored Markdown table into structured rows: headers, column alignments, cell rows, and one record object per row.

POST /api/tools/markdown-table-parse

Mock Json Generator

REST MCP

Generate an array of mock JSON records from a list of field definitions.

POST /api/tools/mock-json-generator

Query String Parse

REST MCP

Parse a URL query string into an object.

POST /api/tools/query-string-parse

Swagger To Openapi

REST MCP

Convert a Swagger 2.0 document (JSON or YAML) to OpenAPI 3.0.3 and return the result as pretty-printed JSON with path and schema counts.

POST /api/tools/swagger-to-openapi

Tsv To Csv

REST MCP

Convert tab-separated values to comma-separated values (or any configured delimiter).

POST /api/tools/tsv-to-csv

Url Params To Json

REST MCP

Parse URL query parameters into a JSON object.

POST /api/tools/url-params-to-json

Url Parse

REST MCP

Parse a URL into its components: protocol, host, port, pathname, query (as an object, repeat keys become arrays), hash, origin, and userinfo

POST /api/tools/url-parse

Xml To Json

REST MCP

Minimal XML → JSON converter.

POST /api/tools/xml-to-json

Yaml To Json

REST MCP

Minimal YAML → JSON converter (scalars, maps, lists, basic block scalars).

POST /api/tools/yaml-to-json

Text

30 tools

Case Convert

REST MCP

Convert a string between camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE, Title Case, Sentence case, lower, UPPER.

POST /api/tools/case-convert

Citation Generator

REST MCP

Generate a reference-list citation in APA 7, MLA 9, Chicago, or Harvard style for a book, website, journal, or article.

POST /api/tools/citation-generator

Code Diff Checker

REST MCP

Returns a line-by-line diff of two code snippets: each line marked added, removed or unchanged with its original and modified line numbers,

POST /api/tools/code-diff-checker

Code Highlight Html

REST MCP

Returns syntax-highlighted HTML for a code snippet: HTML-escaped text wrapped in <span style="color: ..."> elements using one of six colour

POST /api/tools/code-highlight-html

Email Signature Generator

REST MCP

Generate an HTML email signature (table-based, inline styles, safe for Gmail/Outlook) from name, title, company, contact details and social

POST /api/tools/email-signature-generator

Html Entity Finder

REST MCP

Search the HTML entity catalog and return matching entities with their character, named entity, decimal code, hex code, and category.

POST /api/tools/html-entity-finder

Html Strip

REST MCP

Strip all HTML tags from a string, converting block tags to newlines and decoding common entities.

POST /api/tools/html-strip

Html To Markdown

REST MCP

Convert HTML fragments to Markdown.

POST /api/tools/html-to-markdown

Levenshtein Distance

REST MCP

Compute the Levenshtein edit distance between two strings (minimum single-character insertions, deletions, or substitutions to transform A i

POST /api/tools/levenshtein-distance

Line Dedupe

REST MCP

Remove duplicate lines, keeping the first occurrence.

POST /api/tools/line-dedupe

Line Sort

REST MCP

Sort lines alphabetically, numerically, or by length.

POST /api/tools/line-sort

Lorem Ipsum Generate

REST MCP

Generate Lorem Ipsum placeholder text: words, sentences, or paragraphs.

POST /api/tools/lorem-ipsum-generate

Lorem Ipsum Generator

REST

Generate placeholder "Lorem Ipsum" text by words, sentences, or paragraphs.

POST /api/tools/lorem-ipsum

Markdown To Html

REST MCP

Minimal Markdown → HTML renderer with XSS-safe URL sanitization.

POST /api/tools/markdown-to-html

Palindrome Check

REST MCP

Check if a string reads the same forwards and backwards.

POST /api/tools/palindrome-check

Privacy Policy Generator

REST MCP

Generate a privacy policy in Markdown from a short questionnaire: what personal data you collect (name, email, phone, address, payment, usag

POST /api/tools/privacy-policy-generator

Reading Time

REST MCP

Estimate reading time for a block of text.

POST /api/tools/reading-time

Site To Markdown

REST MCP

Convert a full web page's HTML into clean Markdown, the way the Site to Markdown page does: navigation, footers, scripts, styles, iframes an

POST /api/tools/site-to-markdown

Slugify Deep

REST MCP

Slugify text with locale-aware diacritics handling (Turkish, German, French, Spanish) before falling back to Unicode NFD stripping.

POST /api/tools/slugify-deep

Text Diff

REST MCP

Line-by-line diff of two strings using LCS.

POST /api/tools/text-diff

Text Find Replace

REST MCP

Find and replace text and return the new text with the match and replacement counts.

POST /api/tools/text-find-replace

Text Repeat

REST MCP

Repeat text N times with an optional separator.

POST /api/tools/text-repeat

Text Reverse

REST MCP

Reverse text by characters, words, or lines.

POST /api/tools/text-reverse

Text Statistics

REST MCP

Compute detailed text statistics: characters (with and without spaces), words, sentences, paragraphs, averages, plus Flesch Reading Ease (0-

POST /api/tools/text-statistics

Text Summarizer

REST MCP

Create an extractive summary of a text and return the summary with word and sentence statistics.

POST /api/tools/text-summarizer

Text Truncate

REST MCP

Truncate text to a max length, optionally at the last word boundary, with a suffix.

POST /api/tools/text-truncate

Tone Analyzer

REST MCP

Analyze the emotional tone of English text with a rule-based word dictionary and return tone scores (joy, sadness, anger, fear, confidence,

POST /api/tools/tone-analyzer

Whitespace Clean

REST MCP

Clean whitespace in text: trim, collapse runs of spaces, remove blank lines, normalize newlines.

POST /api/tools/whitespace-clean

Word Count

REST MCP

Count words, characters, sentences, paragraphs, and estimated reading time.

POST /api/tools/word-count

Yoyo Loading State Builder

REST MCP

Build Yoyo PHP "yoyo:spinning" loading-state attributes and a ready-to-paste HTML snippet.

POST /api/tools/yoyo-loading-state-builder

Finance

27 tools

Amortization Calculator

REST MCP

Return a full loan amortization schedule (one row per month with payment, principal, interest, extra payment, balance) plus totals, interest

POST /api/tools/amortization-calculator

Auto Loan Calculator

REST MCP

Return the monthly car payment, total interest, financed amount, and a month-by-month amortization schedule for an auto loan.

POST /api/tools/auto-loan-calculator

Break Even Calculator

REST MCP

Return the break-even point of a product or business: contribution margin, contribution margin ratio, break-even units and revenue, plus the

POST /api/tools/break-even-calculator

Business Loan Calculator

REST MCP

Return the monthly payment, total interest, origination fee, effective yearly rate (interest plus fees), a yearly summary, and a full monthl

POST /api/tools/business-loan-calculator

Compound Interest

REST MCP

Compute compound interest growth.

POST /api/tools/compound-interest

Credit Card Payoff Calculator

REST MCP

Return how long a credit card balance takes to pay off at a fixed monthly payment (mode "payment"), or the payment needed to clear it in a t

POST /api/tools/credit-card-payoff-calculator

Credit Card Validate

REST MCP

Validate a credit card number with the Luhn checksum and detect the brand.

POST /api/tools/credit-card-validate

Debt Payoff Calculator

REST MCP

Return a debt payoff plan for several debts using the avalanche (highest rate first) or snowball (lowest balance first) strategy: total mont

POST /api/tools/debt-payoff-calculator

Dividend Calculator

REST MCP

Return a year-by-year projection of a dividend portfolio: dividends received, DRIP reinvestment, contributions, share count, share price, en

POST /api/tools/dividend-calculator

Down Payment Calculator

REST MCP

Return the down payment, closing costs, total cash needed, remaining amount to save, months to save, target month, loan amount, and estimate

POST /api/tools/down-payment-calculator

Fire Calculator

REST MCP

Return the FIRE number (annual expenses / withdrawal rate), years to reach it, FIRE age, progress percent, monthly investment, and a year-by

POST /api/tools/fire-calculator

Home Affordability Calculator

REST MCP

Return the maximum home price you can afford from income, monthly debts, down payment percent, rate, term, property tax, insurance, HOA, and

POST /api/tools/home-affordability-calculator

Inflation Calculator

REST MCP

Return what an amount of money from one year is worth in another year using historical CPI data, with total inflation, average yearly inflat

POST /api/tools/inflation-calculator

Investment Calculator

REST MCP

Return the projected value of an investment with compound growth and monthly contributions: final balance, total contributions, total intere

POST /api/tools/investment-calculator

Kktc Exchange Rates

REST MCP

Return live buy and sell exchange rates (against Turkish lira) from Northern Cyprus (KKTC) exchange offices and banks, per currency, with th

POST /api/tools/kktc-exchange-rates

Loan Calculate

REST MCP

Amortise a fixed-rate loan and show the impact of an optional monthly extra payment on payoff time and total interest.

POST /api/tools/loan-calculate

Mortgage Calculate

REST MCP

Compute a fixed-rate mortgage monthly payment using the standard amortisation formula M = P·r(1+r)^n / ((1+r)^n - 1).

POST /api/tools/mortgage-calculate

Net Worth Calculator

REST MCP

Return net worth (total assets minus total liabilities), the debt-to-asset ratio in percent, and subtotals per category.

POST /api/tools/net-worth-calculator

Profit Margin Calculator

REST MCP

Return cost, selling price, profit, profit margin (percent of price), and markup (percent of cost).

POST /api/tools/profit-margin-calculator

Refinance Calculator

REST MCP

Return the new monthly payment, monthly savings, total cost of the current vs the new loan, total savings, break-even month, and whether a m

POST /api/tools/refinance-calculator

Retirement Calculator

REST MCP

Return the projected savings at retirement, the amount needed to fund an inflation-adjusted monthly income until life expectancy, the gap or

POST /api/tools/retirement-calculator

Roi Calculator

REST MCP

Return the return on investment: total invested (amount plus extra costs), net gain, simple ROI percent, annualized ROI percent, years to do

POST /api/tools/roi-calculator

Salary Calculator

REST MCP

Return the same pay expressed as hourly, daily, weekly, bi-weekly, semi-monthly, monthly, and yearly amounts.

POST /api/tools/salary-calculator

Savings Calculator

REST MCP

Return the future value of savings with compound interest and monthly contributions: total value, total contributions, total interest, and a

POST /api/tools/savings-calculator

Self Employment Tax Calculator

REST MCP

Return the yearly self-employment tax bill for the USA (SE tax: Social Security, Medicare, additional Medicare, plus federal income tax), Tü

POST /api/tools/self-employment-tax-calculator

Travel Budget Calculator

REST MCP

Estimate a trip budget from per-day and one-off expenses: total per person, total for all travelers, daily spend, and a per-category breakdo

POST /api/tools/travel-budget-calculator

Vat Calculator

REST MCP

Return the net amount, the VAT (or sales tax) amount, and the gross amount for a price.

POST /api/tools/vat-calculator

Seo

26 tools

Bot Crawl Checker

REST MCP

Return which of 24 well-known crawlers (Googlebot, BingBot, GPTBot, ClaudeBot, PerplexityBot, AhrefsBot, Twitterbot and more) are allowed or

POST /api/tools/bot-crawl-checker

Domain Rating Checker

REST MCP

Return the Ahrefs Domain Rating (0-100) for up to 25 domains in one call, with a per-domain status.

POST /api/tools/domain-rating-checker

Faq Schema Generator

REST MCP

Generate FAQPage JSON-LD structured data from question-answer pairs, and return the JSON-LD string, a ready <script> tag, the schema object,

POST /api/tools/faq-schema-generator

Form To Json Schema

REST MCP

Returns a form schema object ({ formId, method, action, fields, submitText }) extracted from HTML form markup.

POST /api/tools/form-to-json-schema

Geo Analyzer

REST MCP

Return a Generative Engine Optimization (GEO) report for a public web page: an overall 0-100 score, per-category scores (technical, content,

POST /api/tools/geo-analyzer

Graphql Playground

REST MCP

Check a GraphQL query for balanced braces and, when a schema is supplied, unknown fields on Query/Mutation/Subscription types.

POST /api/tools/graphql-playground

Graphql Schema Validator

REST MCP

Validate a GraphQL SDL schema and return errors, naming-convention warnings, and counts of types, queries, mutations, and subscriptions.

POST /api/tools/graphql-schema-validator

Heading Structure Analyzer

REST MCP

Analyze the H1-H6 heading hierarchy of an HTML document and return every heading, SEO warnings (missing or multiple H1, skipped levels, empt

POST /api/tools/heading-structure-analyzer

Hreflang Tag Generator

REST MCP

Generate hreflang annotations for multilingual pages and return them as HTML <link> tags, an HTTP Link header, and an XML sitemap block, plu

POST /api/tools/hreflang-tag-generator

Json Ld Generator

REST MCP

Generate JSON-LD structured data for 12 schema.org types (Article, BlogPosting, Product, Organization, LocalBusiness, Person, Event, FAQPage

POST /api/tools/json-ld-generator

Json Schema Form Builder

REST MCP

Returns a form schema object (formId, method, action, fields, submitText) built from a list of field definitions.

POST /api/tools/json-schema-form-builder

Json Schema Generator

REST MCP

Returns a JSON Schema (draft-07) object inferred from a sample JSON document.

POST /api/tools/json-schema-generator

Json Schema Validator

REST MCP

Returns whether a JSON document is valid against a JSON Schema (draft-07 subset) and lists every violation with its JSON pointer path, messa

POST /api/tools/json-schema-validator

Json To Html Form

REST MCP

Returns clean HTML5 form markup generated from a JSON form schema ({ formId?, formClass?, method?, action?, fields: [...], submitText? }).

POST /api/tools/json-to-html-form

Json To Zod Schema

REST MCP

Generate a Zod validation schema (TypeScript source) from a JSON sample.

POST /api/tools/json-to-zod-schema

Keyword Density Checker

REST MCP

Analyze keyword density in text and return word/sentence/paragraph counts, the top 1-gram, 2-gram, and 3-gram phrases with counts and densit

POST /api/tools/keyword-density-checker

Meta Tag Generator

REST MCP

Generate HTML <head> meta tags (title, description, keywords, robots, canonical, Open Graph, Twitter Card, viewport, charset, language) and

POST /api/tools/meta-tag-generator

Open Graph Preview

REST MCP

Extract Open Graph and Twitter Card tags from an HTML document (or take them as fields), and return the parsed values, validation issues (mi

POST /api/tools/open-graph-preview

Robots Txt Generator

REST MCP

Return a robots.txt file built from user-agent rules (allow, disallow, crawl-delay), sitemap URLs and an optional Host directive, or from a

POST /api/tools/robots-txt-generator

Schema Org Generator

REST MCP

Generate Schema.org JSON-LD markup for 8 types (Organization, LocalBusiness, Person, Product, Event, Recipe, JobPosting, Course) and return

POST /api/tools/schema-org-generator

Seo Title Description Writer

REST MCP

Analyze an SEO title and meta description and return character counts, estimated SERP pixel widths against Google desktop/mobile limits, key

POST /api/tools/seo-title-description-writer

Serp Preview

REST MCP

Return how a page title and meta description will display in Google search results on desktop or mobile: the truncated display text, charact

POST /api/tools/serp-preview

Slug Generate

REST MCP

Turn a string into a URL-safe slug (kebab-case by default, Unicode-normalized).

POST /api/tools/slug-generate

Structured Data Tester

REST MCP

Validate JSON-LD structured data (given directly or extracted from HTML <script type="application/ld+json"> blocks) and return, per detected

POST /api/tools/structured-data-tester

Xml Sitemap Generator

REST MCP

Generate a valid XML sitemap from a list of URLs and return the XML, the number of URLs written, the invalid URLs that were skipped, and the

POST /api/tools/xml-sitemap-generator

Youtube Description Generator

REST MCP

Assemble a structured YouTube video description from main content, timestamps, links, social links, a call to action and hashtags, with the

POST /api/tools/youtube-description-generator

Calculators

25 tools

Bmi Calculate

REST MCP

Compute Body Mass Index (BMI) with metric (kg/cm) or imperial (lb/in) units.

POST /api/tools/bmi-calculate

Body Fat Calculator

REST MCP

Estimate body fat percentage, fat mass, lean mass, BMI, and a body-composition category.

POST /api/tools/body-fat-calculator

Carbon Footprint Calculator

REST MCP

Estimate an annual personal carbon footprint in tonnes of CO2 from home energy, transportation, and lifestyle, with a per-category breakdown

POST /api/tools/carbon-footprint-calculator

Chmod Calculate

REST MCP

Convert between numeric (755) and symbolic (rwxr-xr-x) Unix file permissions.

POST /api/tools/chmod-calculate

Cloudflare Cost Calculate

REST MCP

Estimate monthly Cloudflare developer platform costs (Workers, D1, R2, KV, Durable Objects) under free or $5 Workers Paid plans.

POST /api/tools/cloudflare-cost-calculate

Daily Habit Calculator

REST MCP

Calculate how a daily habit adds up over a week, a month (30 days), a year (365 days), or a custom date range: total units, total cost, and

POST /api/tools/daily-habit-calculator

Gcd Calculate

REST MCP

Greatest Common Divisor (GCD) and Least Common Multiple (LCM) of two non-negative integers.

POST /api/tools/gcd-calculate

Llm Requirements Calculator

REST MCP

Estimate the VRAM, system RAM, and disk space needed to run an open-weight LLM locally, and which common GPUs and Macs it fits on.

POST /api/tools/llm-requirements-calculator

Macro Calculator

REST MCP

Calculate daily calorie needs and a macronutrient split (protein, carbs, fat in grams and kcal) for weight loss, maintenance, or muscle gain

POST /api/tools/macro-calculator

Math Formula Templates

REST MCP

Return LaTeX source for well-known math and physics formulas from the built-in template library of the math expression generator page (40+ f

POST /api/tools/math-formula-templates

One Rep Max Calculator

REST MCP

Estimate a one-rep max (1RM) from a weight lifted for a number of reps, using Brzycki, Epley, Lander, Lombardi, Mayhew, O'Conner, and Wathen

POST /api/tools/one-rep-max-calculator

Percentage Calculate

REST MCP

Percentage math.

POST /api/tools/percentage-calculate

Prime Check

REST MCP

Check whether an integer is prime.

POST /api/tools/prime-check

Random Number

REST MCP

Generate cryptographically-random integers or floats in a range.

POST /api/tools/random-number

Random Picker

REST MCP

Generate random numbers, pick random items from a list, or split people into random teams.

POST /api/tools/random-picker

Roman Numeral

REST MCP

Convert between Roman numerals and Arabic integers (1-3999).

POST /api/tools/roman-numeral

Scientific Calculator

REST MCP

Evaluate a scientific math expression and return the numeric result (12 significant digits).

POST /api/tools/scientific-calculator

Sleep Calculator

REST MCP

Calculate the best bedtimes for a wake-up time, or the best wake-up times for a bedtime, based on 90-minute sleep cycles plus 15 minutes to

POST /api/tools/sleep-calculator

Stock Average Calculator

REST MCP

Return the average cost per share (dollar cost averaging) across several buys, the total shares, total invested, break-even price, and, when

POST /api/tools/stock-average-calculator

Tdee Calculator

REST MCP

Calculate Total Daily Energy Expenditure (TDEE) and Basal Metabolic Rate (BMR) with the Mifflin-St Jeor equation, plus calorie targets for w

POST /api/tools/tdee-calculator

Temperature Convert

REST MCP

Convert temperature between Celsius (C), Fahrenheit (F), Kelvin (K), and Rankine (R).

POST /api/tools/temperature-convert

Timesheet Calculator

REST MCP

Return total, regular, and overtime hours plus regular, overtime, and total pay for a list of work entries (start time, end time, break).

POST /api/tools/timesheet-calculator

Tip Calculate

REST MCP

Calculate tip amount, total, and per-person split.

POST /api/tools/tip-calculate

Unit Convert

REST MCP

Convert between length, weight, volume, area, speed, and temperature units (km/mi/m/ft, kg/lb, L/gal, m²/ha/acre, mph/kph/knot, °C/°F/K).

POST /api/tools/unit-convert

Water Intake Calculator

REST MCP

Calculate a recommended daily water intake in liters, ounces, cups, and 250 ml glasses, plus a per-waking-hour amount.

POST /api/tools/water-intake-calculator

Generators

23 tools

Barcode Generator

REST MCP

Generate a 1D barcode as an SVG string from text.

POST /api/tools/barcode-generator

Box Shadow Generator

REST MCP

Generate a CSS box-shadow declaration from offset, blur, spread, colour, opacity, and inset settings, or from a named preset (subtle, soft,

POST /api/tools/box-shadow-generator

Caption Generator

REST MCP

Generate a social-media caption from a topic using built-in templates (no AI): picks a template for the content type and tone, fills in the

POST /api/tools/caption-generator

Color Palette Generator

REST MCP

Generate a harmonious colour palette from a base hex colour: complementary, analogous, triadic, tetradic, split-complementary, or monochroma

POST /api/tools/color-palette-generator

Css Animation Generator

REST MCP

Return CSS @keyframes animation code (or Tailwind config, Web Animations API / React, or Framer Motion code) from a named preset such as fad

POST /api/tools/css-animation-generator

Glassmorphism Generator

REST MCP

Generate the CSS for a glassmorphism (frosted glass) card: semi-transparent background, backdrop-filter blur and saturation (with the -webki

POST /api/tools/glassmorphism-generator

Gradient Generator

REST MCP

Generate a CSS linear, radial, or conic gradient from colour stops (2 to 10) and an angle, or from a preset (sunset, ocean, forest, fire, pu

POST /api/tools/gradient-generator

Hashtag Generator

REST MCP

Generate relevant hashtags from keywords using a built-in, rule-based database (no AI): matches keywords against topic categories, scores po

POST /api/tools/hashtag-generator

Linkedin Post Generator

REST MCP

Assemble a LinkedIn post from a hook, a body, a call to action and hashtags, or from one of seven built-in templates (thought leadership, st

POST /api/tools/linkedin-post-generator

Nanoid Generate

REST MCP

Generate one or more NanoID-style identifiers.

POST /api/tools/nanoid-generate

Placeholder Image Generator

REST MCP

Generate a placeholder image as an SVG string: a solid background with centred bold text (the dimensions by default, or custom text) and a t

POST /api/tools/placeholder-image-generator

Purchase Order Generator

REST MCP

Return a purchase order as structured data and as Markdown text: line items with amounts, subtotal, tax, shipping, and total, plus company,

POST /api/tools/purchase-order-generator

Qr Text

REST MCP

Render an ASCII-art QR-style grid for a short text input.

POST /api/tools/qr-text

Random Name Picker

REST MCP

Pick a random winner from a list of names.

POST /api/tools/random-name-picker

Signature Generator

REST MCP

Generate a typed signature as an SVG string: the name is set in a handwriting font (cursive, elegant, bold, or casual) in the chosen colour

POST /api/tools/signature-generator

Social Media Bio Generator

REST MCP

Compose a social-media profile bio from a profession, skills, an achievement, a location and a call to action in one of five styles (profess

POST /api/tools/social-media-bio-generator

Svg Animation Generator

REST MCP

Return an animated SVG (inline CSS @keyframes) and/or the CSS alone, built from a shape template (rect, circle, star, stick figure, sun…) or

POST /api/tools/svg-animation-generator

Thread Generator

REST MCP

Build a numbered Twitter/X thread from a list of tweets, or split long-form text into tweets of at most 280 characters.

POST /api/tools/thread-generator

Ulid Generate

REST MCP

Generate one or more ULIDs — 26-character Crockford base32 identifiers that are lexicographically sortable by creation time.

POST /api/tools/ulid-generate

Uuid Generate

REST MCP

Generate one or more RFC 4122 v4 UUIDs.

POST /api/tools/uuid-generate

X402 Config Generator

REST MCP

Return ready-to-paste x402 payment integration code plus the install command: a paywalled SERVER (Express, Hono, Next.js, Fastify, Gin, Fast

POST /api/tools/x402-config-generator

Yoyo Component Generator

REST MCP

Generate Yoyo PHP component boilerplate: the PHP class (properties, props, query string, listeners, lifecycle hooks, actions, computed prope

POST /api/tools/yoyo-component-generator

Yoyo Config Generator

REST MCP

Generate Yoyo PHP framework setup code: the composer install command, the bootstrap/service-provider code, the route handler, and a sample p

POST /api/tools/yoyo-config-generator

Developer

21 tools

A2ui Basic Catalog

MCP

Returns the authoritative basic-catalog JSON Schema (components, functions, theme) for the requested A2UI version.

mcp: a2ui_basic_catalog

A2ui Diff

MCP

Computes a structural diff between two A2UI JSONL payloads: surfaces added/removed, components added/removed/changed (by id), data-model pat

mcp: a2ui_diff

A2ui Examples

MCP

Returns one or more canonical A2UI JSONL examples matching a pattern (form, list, wizard, modal, chat, dashboard, checkout, typeahead, mcp-c

mcp: a2ui_examples

A2ui Prompt

MCP

Generates a drop-in LLM system prompt that teaches the model to output valid A2UI JSONL: includes the basic-catalog component / function lis

mcp: a2ui_prompt

A2ui Spec

MCP

Returns A2UI protocol documentation for a given spec version and section.

mcp: a2ui_spec

A2ui Validate

MCP

Validates a JSONL A2UI payload against the basic catalog (or a custom catalog) and returns any errors, warnings, or info messages with exact

mcp: a2ui_validate

Ai Model Picker

REST MCP

Return the best-matching AI coding models (top 3 by default) for a project, scored on speed, accuracy, cost and context window from four ans

POST /api/tools/ai-model-picker

Aspect Ratio

REST MCP

Compute the aspect ratio of width:height.

POST /api/tools/aspect-ratio

Color Contrast

REST MCP

Compute the WCAG 2.1 contrast ratio between two colours (accepts #rgb, #rrggbb, and rgb()/rgba() formats) and report whether it passes AA/AA

POST /api/tools/color-contrast

Crypto Testnet Faucets

REST MCP

Returns a curated list of crypto testnet faucets (Ethereum Sepolia, Base, Arbitrum, Optimism, Polygon, Avalanche, BNB Chain, Linea, Solana)

POST /api/tools/crypto-testnet-faucets

Css Minifier

REST MCP

Minify CSS (strip comments and whitespace) or beautify compressed CSS, and return the output with byte sizes and the percentage saved.

POST /api/tools/css-minifier

Env Linter

REST MCP

Lint a dotenv file for duplicate keys, unquoted spaces, export prefixes, secret-looking values (masked), and drift against an optional .env.

POST /api/tools/env-linter

Font Icon Search

REST MCP

Search a catalog of about 300 icons from Font Awesome, Material Icons, Lucide, and Heroicons by name, keyword, or category and return matchi

POST /api/tools/font-icon-search

Glob Pattern Tester

REST MCP

Returns which file paths match a glob pattern and which do not.

POST /api/tools/glob-pattern-tester

Meta Tag Fetcher

REST

Fetch title, meta description, Open Graph tags, and favicon from a URL.

POST /api/tools/meta-fetch

Privacy Policy Checker

REST MCP

Check a privacy policy text for 24 expected disclosures and return a 0-100 completeness score, each check with found/missing and severity, u

POST /api/tools/privacy-policy-checker

Regex Test

REST MCP

Test a regex against input text.

POST /api/tools/regex-test

Sql Formatter

REST MCP

Format (beautify) or minify a SQL query and return the result with lint warnings.

POST /api/tools/sql-formatter

Tailwind To Stylex

REST MCP

Convert Tailwind CSS v4 theme variables, JSON design tokens, or a static Tailwind config theme into StyleX defineConsts source and TypeScrip

POST /api/tools/tailwind-to-stylex

UUID Generator

REST

Generate one or more UUID v4 values.

POST /api/tools/uuid

Workflow Run

MCP

Execute a linear chain of MCP tool calls in one round-trip.

mcp: workflow_run

Encoding

20 tools

Base32 Decode

REST MCP

Decode RFC 4648 base32 back to UTF-8 text.

POST /api/tools/base32-decode

Base64 Decode

REST MCP

Decode a base64 string back to UTF-8 text.

POST /api/tools/base64-decode

Base64 Encode

REST MCP

Encode UTF-8 text as a base64 string.

POST /api/tools/base64-encode

Base64 Encoder / Decoder

REST

Encode text to Base64 or decode Base64 back to text.

POST /api/tools/base64

Color Convert

REST MCP

Convert between color formats: hex, rgb, hsl, hsv.

POST /api/tools/color-convert

Hash Generate

REST MCP

Hash text with MD5, SHA-1, SHA-256, or SHA-512.

POST /api/tools/hash-generate

Hex Decode

REST MCP

Decode a hexadecimal string back to UTF-8 text.

POST /api/tools/hex-decode

Hex Encode

REST MCP

Encode UTF-8 text as a hexadecimal string.

POST /api/tools/hex-encode

Hmac Generate

REST MCP

Compute an HMAC of a message with a secret key.

POST /api/tools/hmac-generate

Html Entity Decode

REST MCP

Decode HTML entities back to characters.

POST /api/tools/html-entity-decode

Html Entity Encode

REST MCP

Encode HTML special characters as entities.

POST /api/tools/html-entity-encode

Json Escaper

REST MCP

Returns the text with JSON string escapes applied (mode "escape") or removed (mode "unescape").

POST /api/tools/json-escaper

Morse Code

REST MCP

Encode or decode Morse code.

POST /api/tools/morse-code

Number Base Convert

REST MCP

Convert an integer between bases 2, 8, 10, and 16.

POST /api/tools/number-base-convert

Pem Decoder

REST MCP

Parse PEM certificates, CSRs, and keys in the browser-equivalent decoder.

POST /api/tools/pem-decoder

Query String Stringify

REST MCP

Serialise an object into a URL query string.

POST /api/tools/query-string-stringify

Rot13

REST MCP

Apply the ROT13 Caesar cipher to text.

POST /api/tools/rot13

String Escape

REST MCP

Escape or unescape a string for JSON, HTML, URL, or regex contexts.

POST /api/tools/string-escape

Url Decode

REST MCP

Decode a percent-encoded (URL-encoded) string back to plain text.

POST /api/tools/url-decode

Url Encode

REST MCP

Percent-encode a string for safe inclusion in URLs.

POST /api/tools/url-encode

Network

19 tools

Cidr Calculate

REST MCP

Compute network / broadcast / first-last host / subnet mask / hosts count for a CIDR (e.g.

POST /api/tools/cidr-calculate

Cookie Analyzer

REST MCP

Analyze Set-Cookie header strings and return a per-cookie list of security issues, an overall 0-100 score, and recommendations.

POST /api/tools/cookie-analyzer

Curl To Code

REST MCP

Returns source code that performs the same HTTP request as a cURL command, in JavaScript (fetch), Python (requests), PHP (cURL), Go (net/htt

POST /api/tools/curl-to-code

Dns Lookup

REST MCP

Return the DNS records of a domain for one record type (A, AAAA, CNAME, MX, TXT, NS or SOA).

POST /api/tools/dns-lookup

Dns Security Scanner

REST MCP

Return a DNS security report for a domain: SPF, DMARC, MX and CAA records with issues, a 0-100 score, a letter grade and recommendations.

POST /api/tools/dns-security-scanner

Email Security Checker

REST MCP

Return an email-security report for the domain of an email address: MX, SPF, DKIM (common selectors), DMARC, MTA-STS, TLS-RPT and BIMI check

POST /api/tools/email-security-checker

Har To Curl

REST MCP

Convert a HAR (HTTP Archive) file into curl commands, one per recorded request, and return them as a script plus a per-request list.

POST /api/tools/har-to-curl

Har Viewer

REST MCP

Parse HAR 1.x JSON and return each entry’s method, URL, status, size, time, and MIME type.

POST /api/tools/har-viewer

Http Status Code Lookup

REST MCP

Return the meaning, typical use case and fix for HTTP status codes.

POST /api/tools/http-status-code-lookup

Ip Address Lookup

REST MCP

Return geolocation and network details for a public IPv4 or IPv6 address: country, region, city, postal code, coordinates, timezone, ASN and

POST /api/tools/ip-address-lookup

Ip Blacklist Checker

REST MCP

Return whether an IPv4 address is listed on 12 well-known DNS blacklists (Spamhaus, Barracuda, SpamCop, SORBS, UCEPROTECT, PSBL and more), w

POST /api/tools/ip-blacklist-checker

Ip Validate

REST MCP

Validate an IPv4 or IPv6 address and classify it (public / private / loopback / link-local / multicast / global).

POST /api/tools/ip-validate

Mime Type Finder

REST MCP

Return MIME types with their file extensions and descriptions.

POST /api/tools/mime-type-finder

Port Reference Guide

REST MCP

Return well-known network ports that match a port number, service name, protocol, or category, with a security note (safe / caution / insecu

POST /api/tools/port-reference-guide

Postman To Curl

REST MCP

Convert a Postman collection (v2.x JSON) into curl commands, one per request, and return them as a script plus a per-request list.

POST /api/tools/postman-to-curl

Security Headers Analyzer

REST MCP

Grade a set of HTTP response headers for security: returns a 0-100 score, a letter grade (A+ to F), a pass/fail/warning summary, and a per-h

POST /api/tools/security-headers-analyzer

Ssl Certificate Checker

REST MCP

Return the TLS certificate details of a public hostname: validity, issuer, subject, expiry and days remaining, protocol, key size, signature

POST /api/tools/ssl-certificate-checker

Subnet Calculator

REST MCP

Return the full IPv4 subnet breakdown for an address: network and broadcast address, subnet mask, wildcard mask, binary mask, first and last

POST /api/tools/subnet-calculator

Whois Lookup

REST MCP

Return WHOIS-style registration data for a domain from the public RDAP service: registrar, creation, update and expiry dates, EPP status cod

POST /api/tools/whois-lookup

Security

19 tools

Base32 Encode

REST MCP

Encode UTF-8 text to RFC 4648 base32 (uppercase, "=" padding).

POST /api/tools/base32-encode

Data Sanitizer

REST MCP

Sanitize untrusted text and return the cleaned output, a list of changes made, and a risk level.

POST /api/tools/data-sanitizer

Dnpm Configurator

REST MCP

Returns the five files of a hardened Docker-based npm wrapper (the ./dnpm bash script, .dnpm/Dockerfile, docker-compose.node.yml, .dnpm/secc

POST /api/tools/dnpm-configurator

Email Header Analyzer

REST MCP

Return a structured analysis of raw email headers: sender, recipient, subject, date, message id, the Received hop chain with per-hop delays,

POST /api/tools/email-header-analyzer

Hash Comparison Tool

REST MCP

Hash text with SHA-1, SHA-256, SHA-384, or SHA-512 and compare the hex digest with an expected hash.

POST /api/tools/hash-comparison-tool

Jwt Decode

REST MCP

Decode a JWT header + payload.

POST /api/tools/jwt-decode

Jwt Generator

REST MCP

Generate a signed JWT (HS256, HS384, or HS512 via HMAC) and return the token plus the decoded header and payload.

POST /api/tools/jwt-generator

Jwt Security Validator

REST MCP

Decode a JWT and return a list of security checks (algorithm strength, expiration, not-before, issued-at, issuer, audience, subject, signatu

POST /api/tools/jwt-security-validator

Password Breach Checker

REST MCP

Return whether a password appears in known data breaches and how many times, using the Have I Been Pwned k-anonymity range API.

POST /api/tools/password-breach-checker

Password Generate

REST MCP

Generate cryptographically-strong passwords.

POST /api/tools/password-generate

Password Pattern Validator

REST MCP

Validate a password against configurable rules and return each check (pass/fail with severity), a 0-100 score, and a strength label.

POST /api/tools/password-pattern-validator

Password Strength

REST MCP

Estimate password strength using character-class entropy.

POST /api/tools/password-strength

Pgp Encryption Tool

REST MCP

Encrypt or decrypt a short message with RSA-OAEP (SHA-256) PEM keys, or generate a new RSA key pair.

POST /api/tools/pgp-encryption-tool

Random Key Generator

REST MCP

Generate cryptographically random keys (API keys, tokens, secrets) and return them as a list of strings.

POST /api/tools/random-key-generator

Random String

REST MCP

Generate cryptographically-random strings from a chosen charset.

POST /api/tools/random-string

Text Encryption

REST MCP

Encrypt text with a password using AES-256-GCM (key derived with PBKDF2-SHA256, 100000 iterations) and return a base64 ciphertext, or decryp

POST /api/tools/text-encryption

Two Fa Code Tester

REST MCP

Compute the current TOTP code (RFC 6238) for a base32 secret and return the code, the seconds remaining in the window, and — when a code is

POST /api/tools/two-fa-code-tester

Url Safety Checker

REST MCP

Run offline heuristic safety checks on a URL and return a risk level (low/medium/high), a 0+ risk score, per-check results, and warnings.

POST /api/tools/url-safety-checker

Windows Update Settings Generator

REST MCP

Generate a Windows Update configuration script (.reg, .ps1, or .bat) plus a matching restore script from a preset and/or individual settings

POST /api/tools/windows-update-settings-generator

Education

15 tools

Attendance Sheet Generator

REST MCP

Generate a blank attendance sheet for a list of students over consecutive days and return the date columns, a CSV, a Markdown table, and a p

POST /api/tools/attendance-sheet-generator

Course Quiz Generator

REST MCP

Build a printable course quiz from a list of questions (multiple choice, true/false, short answer, fill in the blank) and return the numbere

POST /api/tools/course-quiz-generator

Essay Outline Generator

REST MCP

Generate a structured essay outline (introduction, body paragraphs, conclusion) for five essay types and three lengths, and return each sect

POST /api/tools/essay-outline-generator

Flashcard Maker

REST MCP

Turn a list of front/back pairs into a flashcard deck and return the numbered cards plus ready-to-import formats: CSV (Front,Back), tab-sepa

POST /api/tools/flashcard-maker

Gpa Calculator

REST MCP

Calculate a grade point average (GPA) on the 4.0 scale from course letter grades and credits.

POST /api/tools/gpa-calculator

Grade Calculator

REST MCP

Calculate a weighted course grade from categories (homework, quizzes, exams) with assignment scores, the letter grade (A to F), and the scor

POST /api/tools/grade-calculator

Lesson Plan Template

REST MCP

Fill a structured lesson plan template (header, learning objectives, materials, timed activities, assessment, homework, notes) and return th

POST /api/tools/lesson-plan-template

Quiz Maker

REST MCP

Build a multiple-choice quiz from questions with options and a correct option index and return the numbered quiz, an answer key, a printable

POST /api/tools/quiz-maker

Readability Calculator

REST MCP

Compute six readability scores for English text (Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, SMOG, Coleman-Liau, Automated Reada

POST /api/tools/readability-calculator

Report Card Generator

REST MCP

Generate a report card from a list of subjects with letter grades and credits and return the credit-weighted GPA on a 4.0 scale, per-subject

POST /api/tools/report-card-generator

Research Title Generator

REST MCP

Generate up to 20 academic research paper titles from a topic, field, variables, population, and research type, and return each title with i

POST /api/tools/research-title-generator

Rubric Generator

REST MCP

Build a grading rubric from weighted criteria and performance levels and return the rubric grid, the total weight (with a flag when it is no

POST /api/tools/rubric-generator

Seating Chart Maker

REST MCP

Assign students to a rows × columns seating grid (in list order, or shuffled) and return the grid, each student's row/column/seat number, th

POST /api/tools/seating-chart-maker

Thesis Statement Generator

REST MCP

Generate up to 5 thesis statement variations from a topic, a position, and optional supporting reasons for four essay types, and return each

POST /api/tools/thesis-statement-generator

Worksheet Generator

REST MCP

Generate a printable math worksheet of addition, subtraction, multiplication, division, or mixed problems at easy (1–10), medium (1–50), or

POST /api/tools/worksheet-generator

Datetime

12 tools

Age Calculate

REST MCP

Calculate age from a date of birth — years, months, days, plus totals in days, weeks, and months.

POST /api/tools/age-calculate

Career Experience Calculator

REST MCP

Calculate total professional experience across several jobs: total days, years/months/days, weeks, working days (5/7), working hours (8 per

POST /api/tools/career-experience-calculator

Country Lookup

REST MCP

Return country facts — capital, currency (name, code, symbol), phone code, timezone, region, subregion, flag emoji, and languages — for coun

POST /api/tools/country-lookup

Cron Describe

REST MCP

Parse a 5-field cron expression (minute hour day-of-month month day-of-week) and produce a human-readable English description.

POST /api/tools/cron-describe

Cron To Systemd

REST MCP

Convert a 5-field cron expression into a systemd timer plus service unit and a Kubernetes CronJob YAML file.

POST /api/tools/cron-to-systemd

Date Difference

REST MCP

Compute the difference between two dates in years/months/weeks/days/hours/minutes/seconds.

POST /api/tools/date-difference

Date Difference Calculator

REST

Calculate the difference between two dates in various units.

POST /api/tools/date-diff

Relationship Calculator

REST MCP

Calculate how long a relationship has lasted between a start date and a target date: years/months/days, totals in days, weeks, months, hours

POST /api/tools/relationship-calculator

Timezone Convert

REST MCP

Convert a datetime between IANA time zones.

POST /api/tools/timezone-convert

Unix Timestamp Convert

REST MCP

Convert between Unix timestamps and ISO dates.

POST /api/tools/unix-timestamp-convert

Unix Timestamp Converter

REST

Convert Unix timestamps to human-readable dates and vice versa.

POST /api/tools/unix-timestamp

Work Anniversary Calculator

REST MCP

Calculate job tenure between a start date and a target date: years/months/days, totals in days, weeks, months, and hours, approximate workin

POST /api/tools/work-anniversary-calculator

Productivity

8 tools

Client Status Report Generator

REST MCP

Generate a client-facing project status report in Markdown and return it with its headline counts.

POST /api/tools/client-status-report-generator

Dev Request Prioritizer

REST MCP

Prioritize development requests with the page's scoring frameworks and return them sorted by priority score, each with a value score and an

POST /api/tools/dev-request-prioritizer

Keyboard Shortcut Finder

REST MCP

Return keyboard shortcuts (Mac and Windows keys) that match a search query, app, or category.

POST /api/tools/keyboard-shortcut-finder

Retro Meeting

REST MCP

Turn a finished sprint-retrospective board into shareable results: a Markdown summary grouped by category with items sorted by votes, a CSV

POST /api/tools/retro-meeting

Scope Creep Tracker

REST MCP

Measure scope creep on a project and return the numbers a stakeholder report needs: original (baseline) effort, approved / pending / rejecte

POST /api/tools/scope-creep-tracker

Social Media Calendar Generator

REST MCP

Turn a list of planned social media posts into a content calendar: a CSV export (Date, Time, Platform, Content Type, Title, Description, Has

POST /api/tools/social-media-calendar-generator

Sprint Capacity Calculator

REST MCP

Calculate a team's realistic sprint capacity in hours and story points.

POST /api/tools/sprint-capacity-calculator

Tech Debt Register

REST MCP

Analyze a technical debt register and return the stakeholder numbers: active vs resolved counts, total hours to fix, weekly "interest" cost

POST /api/tools/tech-debt-register

Authentication

No authentication required.

The FindUtils API is open. No API key, no sign-up, no credit card. Just make HTTP requests and get results.

Rate Limits

Standard access: 60 requests per minute

Rate limits are per IP address. For higher limits, contact us.

Response Format

All endpoints return JSON with a consistent structure.

json
{
  "success": true,
  "result": {
    "result": "SGVsbG8sIFdvcmxkIQ=="
  },
  "meta": {
    "tool": "base64",
    "executionMs": 0
  }
}

More Examples

Copy and paste these into your terminal to try them out.

bash
# Generate a UUID
curl -X POST https://api.findutils.com/api/tools/uuid/execute \
  -H "Content-Type: application/json" -d '{}'

# SHA-256 hash
curl -X POST https://api.findutils.com/api/tools/hash/execute \
  -H "Content-Type: application/json" \
  -d '{"text": "hello world", "algorithm": "sha-256"}'

# Format JSON
curl -X POST https://api.findutils.com/api/tools/json-format/execute \
  -H "Content-Type: application/json" \
  -d '{"json": "{\"a\":1,\"b\":2}", "action": "format"}'

# Convert units
curl -X POST https://api.findutils.com/api/tools/unit-convert/execute \
  -H "Content-Type: application/json" \
  -d '{"value": 100, "from": "km", "to": "miles"}'

# List all available tools
curl https://api.findutils.com/api/tools

# Get OpenAPI spec
curl https://api.findutils.com/api/openapi.json

Error Handling

When a request fails, the API returns a structured error with an error code and message.

json
{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Missing required field: text"
  }
}
HTTP Status Error Code Meaning
400VALIDATION_ERRORInvalid input (missing field, wrong type)
404NOT_FOUNDTool or endpoint not found
429RATE_LIMITEDToo many requests (60/min limit)
500INTERNAL_ERRORServer error (try again)

API Endpoints

Five endpoints are available.

Method Path Description
GET/api/healthHealth check
GET/api/toolsList all tools with schemas
GET/api/tools/:idGet single tool info + schema
POST/api/tools/:id/executeExecute a tool
GET/api/openapi.jsonOpenAPI 3.1 specification

OpenAPI Specification

The full API is documented as an OpenAPI 3.1 spec. Import it into Postman, Insomnia, or any compatible client.

Use Cases

What developers are building with the FindUtils API.

Build AI Agents

Give your LLM tool-use superpowers. Encode data, validate inputs, and transform formats directly from your agent loop.

Automate Workflows

Script repetitive tasks in CI/CD pipelines, shell scripts, or cron jobs. curl is all you need.

Integrate Into Apps

Embed developer utilities into your own product. Hash passwords on the fly, generate UUIDs, convert formats.

More Ways to Connect

FindUtils MCP Server

Connect all 290+ tools directly to Claude, ChatGPT, or any MCP-compatible client. No HTTP calls needed.

Learn about MCP →

Use the Web UI

Prefer a visual interface? Every tool is also available as a web app with no sign-in required.

Browse all tools →