Agent tool marketplace
A directory of every deterministic utility an AI agent can call on FindUtils, grouped by what it does. Running a tool needs an API key. Keys are not for sale yet: ask for early access.
Per-call payments (x402) are not open yet. Running a tool needs an API key. The prices on this page are the per-call prices listed in the x402 manifest, from $0.0001 a call.
How an agent calls a tool
- Discover
Read the catalog and the schemas: GET /api/tools, /api/openapi.json, or MCP tools/list. No key needed.
- Get a key
Keys are not for sale yet. Ask for early access on the contact page.
- Call
Send the request with Authorization: Bearer YOUR_API_KEY (or X-API-Key).
- No key?
The call answers 402 Payment Required with the error code PAYMENT_REQUIRED and a link to the API keys page.
Encoding & Cryptography
Reversible transforms and one-way digests an agent needs mid-pipeline.
base64
base64-decode
base64-encode
hash
hmac
jwt-decode
morse-code
string-escape
url-decode
url-encode
Data Formats
Parse, validate, reshape and convert structured data between formats.
csv-to-json
html-strip
json-flatten
json-format
json-query
json-to-csv
json-unflatten
json-validate
markdown-to-html
xml-to-json
yaml-to-json
Validation & Verification
Check that a value is well-formed before an agent acts on it.
credit-card-validate
email-validate
ip-validate
regex-test
Generators
Produce identifiers, secrets, placeholder data and codes on demand.
invoice-generate
password-generate
qr-text
random-number
random-string
slug-generate
Text Utilities
Clean, reshape and measure raw text in a single deterministic call.
case-convert
line-dedupe
line-sort
roman-numeral
text-repeat
text-reverse
text-truncate
whitespace-clean
word-count
Calculators & Units
Numeric and date math with predictable, audit-friendly output.
aspect-ratio
bmi-calculate
chmod-calculate
cidr-calculate
cloudflare-cost-calculate
date-diff
percentage
tip-calculate
unit-convert
unix-timestamp
Web & Content
Fetch, render and inspect external content from a URL.
color-convert
cron-describe
meta-fetch
More Utilities
Everything else in the catalog.
ass-to-srt
bookmarks-diff
bookmarks-html-to-csv
bookmarks-json-to-html
csp-generate
csv-dedupe
csv-diff
csv-to-bookmarks-html
csv-to-ics
csv-to-ndjson
csv-to-sql
csv-to-tsv
csv-to-vcf
date-difference
dedupe-bookmarks
hash-generate
hmac-generate
ics-to-csv
ics-to-json
images-to-pdf
internet-shortcuts-to-csv
json-to-liquid
json-to-sql
knap-render
line-prefix-suffix
llms-txt-generate
lorem-ipsum-generate
merge-bookmarks
merge-ics
merge-vcf
ndjson-to-csv
number-base-convert
opml-to-csv
paycheck-calculator
pdf-delete-pages
pdf-extract
pdf-merge
pdf-organize
pdf-page-numbers
pdf-rotate
pdf-split
pdf-watermark
percentage-calculate
plist-json-converter
robots-txt-tester
sbv-to-srt
sitemap-validator
split-ics
sql-to-csv
sql-to-json
srt-to-txt
srt-to-vtt
subtitle-clean
subtitle-fps-convert
subtitle-merge
subtitle-overlap-fix
subtitle-shift
template-to-liquid
time-difference
tsv-to-csv
unix-timestamp-convert
url-to-webloc
uuid-generate
vcard-generate
vcf-to-csv
webloc-to-url
Two ways to reach the catalog
api.findutils.com — a plain HTTP endpoint per tool. Send your API key in the Authorization header and call it like any other API.
mcp.findutils.com — the same catalog as a Streamable HTTP MCP server. Drop it into Claude Desktop, OpenClaw, or any MCP-aware agent, with your API key in the Authorization header.
Wire an agent to the catalog
The quickstart walks through a first call with an API key, end to end.