JSON Schema Validator

live Utility

Validate a JSON value against a JSON Schema (draft-07 subset) — returns each failure with its path. Keyless, offline.

1 tools
0ms auth
free tier 50 calls/day

Tools

validate_json_schema

Validate a JSON value against a JSON Schema (draft-07 subset: type, required, properties, additionalProperties, items, enum, const, min/max, minLength/maxLength, pattern, minItems/maxItems, uniqueItem

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/jsonschema/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/jsonschema/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"validate_json_schema","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("validate_json_schema", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("validate a json value against a json schema (draft-07 subset) — returns each failure with its path");