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2025-03-13

Manipulation et traitement JSON MCP Server

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JSON MCP Server (@gongrzhe/server-json-mcp@1.0.3)

A JSON Model Context Protocol (MCP) server implementation for querying and manipulating JSON data. This server enables LLMs to interact with JSON data through a set of standardized tools.

JSON Server MCP server

Installation & Usage

# Using npx with specific version (recommended)
npx @gongrzhe/server-json-mcp@1.0.3

# Install specific version globally
npm install -g @gongrzhe/server-json-mcp@1.0.3

# Run after global installation
server-json-mcp

Components

Tools

  • query

    • Query JSON data using JSONPath syntax with extended operations
    • Input:
      • url (string): URL of the JSON data source
      • jsonPath (string): JSONPath expression with optional operations
  • filter

    • Filter JSON data using conditions
    • Input:
      • url (string): URL of the JSON data source
      • jsonPath (string): Base JSONPath expression
      • condition (string): Filter condition

Supported Operations

Array Operations

  • Slicing: $[0:5], $[-3:], $[1:4]
  • Sorting: $.sort(price), $.sort(-price)
  • Distinct: $.distinct()
  • Transformations:
    • Map: $.map(fieldName)
    • Flatten: $.flatten()
    • Union: $.union([1,2,3])
    • Intersection: $.intersection([1,2,3])

String Operations

  • Case: $.toLowerCase(), $.toUpperCase()
  • Tests: $.startsWith('test'), $.endsWith('test')
  • Search: $.contains('test'), $.matches('pattern')

Numeric Operations

  • Math: $.math(+10), $.pow2()
  • Rounding: $.round(), $.floor(), $.ceil()
  • Functions: $.abs(), $.sqrt()

Date Operations

  • Format: $.format('YYYY-MM-DD')
  • Check: $.isToday()
  • Modify: $.add(1, 'days')

Aggregation Operations

  • Group: $.groupBy(category)
  • Stats: $.sum(price), $.avg(price), $.min(price), $.max(price)

Configuration

Usage with Claude Desktop

To use this server with the Claude Desktop app, add the following configuration to your claude_desktop_config.json:

{
  "json": {
    "command": "npx",
    "args": [
      "@gongrzhe/server-json-mcp@1.0.3"
    ]
  }
}

Alternatively, you can use the node command directly if you have the package installed:

{
  "json": {
    "command": "node",
    "args": [
      "path/to/build/index.js"
    ]
  }
}

Development

Building from Source

  1. Clone the repository
  2. Install dependencies:
    npm install
    
  3. Build the project:
    npm run build
    

Notes

  1. All JSONPath expressions start with $ representing the root object
  2. Array indices are zero-based
  3. String values in operations should be wrapped in quotes
  4. Date operations support 'days', 'months', and 'years' units
  5. Numeric operations support basic arithmetic operators (+, -, *, /)

License

MIT

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    Reviews

    1 (1)
    Avatar
    user_KjNHFMab
    2025-04-17

    As a dedicated user of JSON-MCP-Server by GongRzhe, I find it incredibly efficient for managing multiple JSON data in various projects. The seamless integration and robust performance make it an essential tool for any developer. Highly recommended for anyone looking for a reliable JSON data management solution. Be sure to check it out on GitHub!