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ContextForge MCP Gateway

Registry and proxy federating MCP, A2A, REST and gRPC behind one endpoint

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Stars
4.6k
License
Apache-2.0
Last commit
Oct 2026
Last release
Sep 2026

Overview

ContextForge is IBM's Python registry and proxy that federates MCP servers, A2A agents and REST or gRPC APIs into one MCP-compliant endpoint with auth, rate limiting, retries, an Admin UI and OpenTelemetry tracing. It installs from PyPI (mcpgateway on port 4444), as a GHCR container, via Docker Compose with PostgreSQL, Redis and nginx, or with a Helm chart, and virtualizes legacy REST services as MCP tools.

Who it is for: enterprises centralizing MCP tools and agents behind one gateway

Strengths

  • Federates MCP, A2A, REST and gRPC (via reflection) behind one MCP endpoint
  • Transports: HTTP, JSON-RPC, WebSocket, SSE, Streamable HTTP, stdio
  • Admin UI with live log viewer; OpenTelemetry to Phoenix, Jaeger, Zipkin
  • Helm chart with HPA, Redis clustering and Grafana dashboards

Weaknesses

  • arm64 containers unsupported in production; Apple Silicon needs Rosetta or PyPI
  • Local Docker builds fail without the CI-only wheel closure; pull the GHCR image
  • Will not start without generated JWT_SECRET_KEY and AUTH_ENCRYPTION_SECRET
  • Large surface: 55+ tables, 40+ plugins, nginx and pgAdmin in the Compose stack

What it needs

  • no GPU
  • Docker + Compose
  • Needs PostgreSQL (production; SQLite for dev), Redis (caching and federation)
  • Models: A2A agents: OpenAI, Anthropic, custom
  • port 4444

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