Json Schema Generator API

POST https://api.findutils.com/api/tools/json-schema-generator/execute

Returns a JSON Schema (draft-07) object inferred from a sample JSON document. Detects types, nested objects and arrays, marks properties required, and can detect string formats (email, uri, uuid, date-time, date) and include examples.

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Request body

application/json

json

string required

The sample JSON document (text) to infer a schema from.
required

boolean optional

Mark every object property as required. Default: true. Default true.
additional_properties

boolean optional

Allow additional properties on objects. When false, "additionalProperties": false is emitted. Default: false. Default false.
detect_formats

boolean optional

Detect string formats (email, uri, uuid, date-time, date). Default: true. Default true.
include_examples

boolean optional

Include the sample values as "examples". Default: false. Default false.

Example arguments

Verified

{
  "json": {
    "name": "Ann",
    "age": 30,
    "email": "[email protected]"
  }
}

curl -X POST https://api.findutils.com/api/tools/json-schema-generator/execute \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "json": "{\"name\":\"Ann\",\"age\":30,\"email\":\"[email protected]\"}"
  }'

const response = await fetch('https://api.findutils.com/api/tools/json-schema-generator/execute', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json', Authorization: 'Bearer YOUR_API_KEY' },
  body: JSON.stringify({"json":"{\"name\":\"Ann\",\"age\":30,\"email\":\"[email protected]\"}"}),
});
const data = await response.json();

import requests

response = requests.post(
    "https://api.findutils.com/api/tools/json-schema-generator/execute",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={"json":"{\"name\":\"Ann\",\"age\":30,\"email\":\"[email protected]\"}"},
)
data = response.json()

$ch = curl_init('https://api.findutils.com/api/tools/json-schema-generator/execute');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json', 'Authorization: Bearer YOUR_API_KEY'],
    CURLOPT_POSTFIELDS => '{"json":"{\"name\":\"Ann\",\"age\":30,\"email\":\"[email protected]\"}"}',
    CURLOPT_RETURNTRANSFER => true,
]);
$data = json_decode(curl_exec($ch), true);

Also an MCP tool

Call json_schema_generator from Claude, Cursor or any MCP client. Same arguments, same output.

https://mcp.findutils.com

MCP reference

Rate limit: 60 a minute, per IP
Auth: API key
REST id: json-schema-generator
MCP name: json_schema_generator
Category: SEO
Machine-readable: openapi.json · markdown.md

Request body

Example arguments

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