curl MCP v2 - The last MCP you'll need

September 8, 2025 ยท View on GitHub

A powerful, lightweight MCP built on HTTP standards with X OAuth integration.

Features

  • ๐Ÿ” X OAuth Integration - Seamless authentication with your X account
  • ๐ŸŒ Universal HTTP Client - Make requests to any URL with curl-like syntax
  • ๐Ÿ”„ Smart Proxies - Automatic routing to LLM-optimized versions of popular sites
  • ๐Ÿ“ Markdown-First - Responses optimized for LLM consumption
  • ๐Ÿš€ Cloudflare Workers - Fast, global edge deployment
  • ๐Ÿ›ก๏ธ Secure - OAuth 2.1 compliant with PKCE

Quick Start

MCP Usage

Add to your MCP client config:

{
  "mcpServers": {
    "curlmcp": {
      "command": "npx",
      "args": ["@modelcontextprotocol/server-fetch", "https://curlmcp.com/mcp"]
    }
  }
}

Local Development

# Clone and install
git clone https://github.com/janwilmake/curlmcp-v2
cd curlmcp-v2
npm install

# Start local development (requires x-oauth-provider running on :8787)
npm run dev

# Test with MCP Inspector
npx @modelcontextprotocol/inspector

Usage Examples

Basic Request

GET /curl/api.github.com/users/janwilmake

With Headers

GET /curl/api.example.com/data?header=Accept:application/json&header=User-Agent:curl-mcp

POST with Data

GET /curl/api.example.com/submit?request=POST&data=name=test&data=value=123

X/GitHub Integration

GET /curl/x.com/janwilmake
# Automatically routes to xymake.com with markdown headers

GET /curl/github.com/janwilmake/curlmcp
# Automatically routes to uithub.com with markdown headers

Proxy Configurations

  • x.com โ†’ xymake.com (markdown-optimized X)
  • github.com โ†’ uithub.com (markdown-optimized GitHub)

Authentication

The MCP requires X OAuth authentication. On first use, you'll be redirected to authenticate with your X account. The access token is automatically used for requests that need authentication.

API Parameters

ParameterDescriptionExample
requestHTTP methodPOST, GET, etc.
headerCustom headersAccept:application/json
dataRequest datakey=value
userBasic authusername:password
access_tokenOAuth tokenUses authenticated user's token by default
includeInclude response headerstrue
locationFollow redirectstrue

Architecture

Built using:

  • simplerauth-client - OAuth integration
  • with-mcp - OpenAPI to MCP conversion
  • Cloudflare Workers - Edge deployment

This version eliminates the complexity of the original curlmcp while adding proper authentication and a cleaner architecture.