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JSON MCP Filter

kehvinbehvin/json-mcp-filter

A powerful Model Context Protocol (MCP) server that provides JSON schema generation and filtering tools for local files and remote HTTP/HTTPS endpoints. Built with quicktype for robust TypeScript type generation.

View on GitHub

Install

npx -y json-mcp-filter@latest

Client configuration

{
  "mcpServers": {
    "json-mcp-filter": {
      "command": "npx",
      "args": [
        "-y",
        "json-mcp-filter@latest"
      ]
    }
  }
}
Author
@kehvinbehvin
Category
Research & Data, Developer Tools
Updated
Oct 6, 2026

About JSON MCP Filter

Perfect for: Filtering large JSON files and API responses to extract only relevant data for LLM context, while maintaining type safety.

Features

  • Schema Generation - Convert JSON to TypeScript interfaces using quicktype

  • Smart Filtering - Extract specific fields with shape-based filtering

  • Remote Support - Works with HTTP/HTTPS URLs and API endpoints

  • Auto Chunking - Handles large datasets with automatic 400KB chunking

  • Size Protection - Built-in 50MB limit with memory safety

  • MCP Ready - Seamless integration with Claude Desktop and Claude Code

  • Smart Errors - Clear, actionable error messages with debugging info

Tools (3)

  • json_schema

    Generates TypeScript interfaces from JSON data.

  • json_filter

    Extracts specific fields using shape-based filtering with automatic chunking for large datasets.

  • json_dry_run

    Analyzes data size and provides chunking recommendations before filtering.

Details on this page are taken from the project's README. Open README

Supported clients

Clients mentioned in this server's README:

View all
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Claude Desktop

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Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

WindowsMacOS

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