Development

JSON Schema Generator

Infer JSON Schema from sample JSON, optionally merge manual schema edits, and validate data against the active schema

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/json-schema-generator' \
  -H 'Content-Type: application/json' \
  -d '{"sampleJson":"{\n  \"id\": 101,\n  \"email\": \"[email protected]\",\n  \"roles\": [\n    \"admin\",\n    \"user\"\n  ],\n  \"profile\": {\n    \"active\": true\n  }\n}","draft":"2020-12","inferEnums":true,"detectFormats":true,"adjustedSchemaJson":"{\n  \"type\": \"object\",\n  \"properties\": {\n    \"id\": { \"type\": \"integer\" }\n  },\n  \"required\": [\"id\"]\n}","validateAdjustedSchema":true}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/json-schema-generator

Parameters

Name	Type	Required	Description
sampleJson	textarea	Yes	—
draft	select	No	—
inferEnums	checkbox	No	—
detectFormats	checkbox	No	—
adjustedSchemaJson	textarea	No	—
validateAdjustedSchema

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-json-schema-generator": {
      "name": "json-schema-generator",
      "description": "Infer JSON Schema from sample JSON, optionally merge manual schema edits, and validate data against the active schema",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=json-schema-generator",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "json-schema-generator",
    "arguments": {
  "sampleJson": "{\n  \"id\": 101,\n  \"email\": \"[email protected]\",\n  \"roles\": [\n    \"admin\",\n    \"user\"\n  ],\n  \"profile\": {\n    \"active\": true\n  }\n}",
  "draft": "2020-12",
  "inferEnums": true,
  "detectFormats": true,
  "adjustedSchemaJson": "{\n  \"type\": \"object\",\n  \"properties\": {\n    \"id\": { \"type\": \"integer\" }\n  },\n  \"required\": [\"id\"]\n}",
  "validateAdjustedSchema": true
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

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