JSON validation, formatting, diffing, querying â as an MCP tool for your AI coding assistant
Connect to Claude Code, Cursor, or Windsurf in 10 seconds. Zero install, zero config.
Add to your MCP client config (Claude Code, Cursor, Windsurf, etc.):
{
"json-toolkit": {
"type": "streamable-http",
"url": "https://json-toolkit-mcp.yagami8095.workers.dev/mcp"
}
}No API key needed for free tier. 1,000 calls/month.
json_format â Pretty-print any JSONjson_validate â Validate with detailed error messagesjson_diff â Compare two JSON objectsjson_query â JMESPath queries on JSON datajson_transform â Transform JSON with mapping rulesjson_schema â Auto-generate JSON Schema from dataFree: 1,000 calls/month | Pro: 50,000 calls/month across all 9 servers
Get Pro â $29/mo