`validate_json`

Pack: json · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/validate_json for the schema, then POST the same URL with its arguments for the data.

Validate a JSON string (keyless, offline). Returns whether it is valid and, if not, the error message and the character position.

Parameters

Name	Type	Required	Description
`json`	string	yes	The JSON text to validate.

Example call

Arguments

{
  "json": "{\"name\": \"John\", \"age\": 30}"
}

curl

curl -X POST https://gateway.pipeworx.io/json/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"validate_json","arguments":{"json":"{\"name\": \"John\", \"age\": 30}"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('validate_json', {
  "json": "{\"name\": \"John\", \"age\": 30}"
});

More examples

{
  "json": "{\"items\": [1, 2, 3], \"valid\": true}"
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the json pack

{
  "mcpServers": {
    "json": {
      "url": "https://gateway.pipeworx.io/json/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

validate_json