# Json Schema Generator — REST API endpoint `json-schema-generator`

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.

- Category: seo
- MCP server: https://mcp.findutils.com/ (Streamable HTTP, no API keys, 120 req/min per IP)
- REST endpoint: POST https://api.findutils.com/api/tools/json-schema-generator/execute (no API keys, 60 req/min per IP)
- Reference page: https://findutils.com/api/json-schema-generator/
- Same tool on the other surface: https://findutils.com/mcp/json-schema-generator/

## Call the endpoint (verified example)

```bash
curl -X POST https://api.findutils.com/api/tools/json-schema-generator/execute \
  -H "Content-Type: application/json" \
  -d '{
    "json": "{\"name\":\"Ann\",\"age\":30,\"email\":\"a@b.co\"}"
  }'

# Parameter schema
curl https://api.findutils.com/api/tools/json-schema-generator
```

## Input schema

| Argument | Type | Required | Description |
|---|---|---|---|
| `json` | string | yes | The sample JSON document (text) to infer a schema from. |
| `required` | boolean | no | Mark every object property as required. Default: true. Default: `true`. |
| `additional_properties` | boolean | no | Allow additional properties on objects. When false, "additionalProperties": false is emitted. Default: false. Default: `false`. |
| `detect_formats` | boolean | no | Detect string formats (email, uri, uuid, date-time, date). Default: true. Default: `true`. |
| `include_examples` | boolean | no | Include the sample values as "examples". Default: false. Default: `false`. |

Example arguments (verified):

```json
{
  "json": "{\"name\":\"Ann\",\"age\":30,\"email\":\"a@b.co\"}"
}
```

Decoded `json` argument (readability only — send it as a string):

```json
{
  "name": "Ann",
  "age": 30,
  "email": "a@b.co"
}
```

OpenAPI 3.1 spec: https://findutils.com/api/openapi.json · Interactive docs: https://findutils.com/api/docs/

## Also an MCP tool

```bash
claude mcp add findutils --transport http https://mcp.findutils.com/
```

Then ask the client to call `findutils:json_schema_generator`. Full MCP reference: https://findutils.com/mcp/json-schema-generator/

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