JSON Query MCP

Name: JSON Query MCP
Author: mgraczyk

@mgraczyk

Repository

About JSON Query MCP

An MCP server that gives AI agents tools to query large JSON files

#json-query #mcp #json-tools

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "json-query": {
      "command": "npx",
      "args": [
        "json-query-mcp"
      ]
    }
  }
}

Tools

No tools detected

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is JSON Query MCP?

An MCP server that enables LLMs implementing the Model Context Protocol to query large JSON files using JSONPath expressions and string-based key/value searching. It is designed for handling JSON data too large to fit in a single LLM context window.

How to use JSON Query MCP?

Run npx json-query-mcp from the command line. For Cursor, add an entry to ~/.cursor/mcp.json specifying "command": "npx" and "args":["<path-to-repo>"].

Key features of JSON Query MCP

Query JSON files using JSONPath expressions
Search for keys that match a query string
Search for values that match a query string
Handle JSON files larger than 1 million characters

Use cases of JSON Query MCP

Extract a small subset of data from a massive JSON Swagger definition to generate TypeScript interfaces
Find specific keys or values in complex or deeply nested JSON documents
Enable LLMs to work with JSON files that exceed typical context window limits