Atrax - MCP Server | MCP Directory

Atrax: MCP Server Aggregation Proxy v0.1.0

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               `'           MCP PROXY FOR THE WEB v0.1.0

pre-commit

Atrax is a proxy for Model Context Protocol (MCP) servers that aggregates multiple MCP servers and presents them as a single unified interface. The name comes from the funnel-web spider, reflecting how it funnels resources from multiple servers into one.

Features

Resource Aggregation: Combine resources from multiple servers with configurable conflict resolution
Transparent Proxying: Present a unified MCP server interface to clients
Protocol Compliance: Strict adherence to the MCP protocol specification
Modular Design: Clear separation of concerns between components
Multiple Transport Types: Support for STDIO, HTTP/SSE, and Docker transports
Enhanced Error Handling: Detailed error reporting with contextual information
Web Integration: HTTP/SSE transport for browser and web-based clients
Authentication Support: Token-based authentication for securing server access

Quick Start

# Clone the repository
git clone https://github.com/yourusername/atrax.git
cd atrax

# Setup development environment
direnv allow  # Sets up Python venv and pre-commit
npm install

# Build the project
npm run build

# Run the server (no authentication)
npm run serve

# Run with token authentication
npm run serve:auth

# Run smoke tests
npm run test:smoke

Documentation Map

DEVELOPMENT.md: Development environment setup and workflow
GUIDELINES.md: Project guidelines and coding standards
MCP_SDK_INTEGRATION.md: MCP SDK integration guide
HTTP_SSE_TRANSPORT.md: HTTP/SSE transport implementation and usage
TOKEN_AUTH.md: Token authentication guide and usage
DIRENV.md: Using direnv for environment management
CLAUDE.md: Quick reference for common commands
VERSION_MANAGEMENT.md: Guidelines for version management

Examples

The examples/ directory contains example server implementations:

Memory server: A simple MCP server that stores a knowledge graph in memory
Echo server: A basic MCP server that echoes back requests
HTTP Echo server: An MCP server that uses HTTP/SSE transport to communicate

Run examples with:

# STDIO-based servers
npm run memory-server
npm run echo-server

# HTTP/SSE-based server
npm run http-echo-server

# Client examples
npm run echo-client      # Connect to STDIO Echo server
npm run memory-client    # Connect to STDIO Memory server
npm run http-echo-client # Connect to HTTP/SSE Echo server

License

MIT