#99th of 14 in Gateways
agentgateway
One proxy for LLM, MCP and A2A traffic with auth and RBAC
- Stars
- 5.3k
- License
- Apache-2.0
- Last commit
- Oct 2026
- Last release
- Oct 2026
Overview
Agentgateway is a Linux Foundation proxy for agent traffic: an LLM gateway (OpenAI-compatible API, budgets, failover), an MCP gateway federating tools over stdio, HTTP, SSE and Streamable HTTP, and an A2A gateway. It adds JWT, API key and OAuth auth, CEL RBAC, rate limits, guardrails and OpenTelemetry, and runs standalone from YAML or as a Kubernetes controller with Gateway API.
Who it is for: platform teams securing MCP, A2A and LLM traffic
Strengths
- One proxy for LLM, MCP and A2A traffic with an OpenAI-compatible API
- MCP federation over stdio, HTTP, SSE and Streamable HTTP plus OpenAPI tools
- JWT, API key and OAuth auth with CEL-based RBAC and rate limits
- Standalone YAML mode or Kubernetes controller with Gateway API
Weaknesses
- README has no install command, ports or resource needs; quickstart is external
- Inference routing assumes Kubernetes Inference Gateway extensions
- Marked in active development; roadmap is the issue tracker
- Guardrail backends beyond regex are cloud services (OpenAI, Bedrock, Model Armor)
What it needs
- no GPU
- Docker
- Models: OpenAI, Anthropic, Gemini, Bedrock and other providers; self-hosted models via inference routing
Also in Gateways
See all 14| Rank | Project | Score |
|---|---|---|
| 1 | OmniRouteOpenAI-compatible gateway that routes requests across hundreds of AI providers | 86 out of 100 |
| 2 | LiteLLMOpenAI-format gateway and Python SDK for calling 100+ LLM providers | 84 out of 100 |
| 3 | freellmapiOpenAI-compatible router that fails over across free LLM provider tiers | 76 out of 100 |
| #4 | ContextForge MCP GatewayRegistry and proxy federating MCP, A2A, REST and gRPC behind one endpoint | 68 out of 100 |
| #5 | HigressEnvoy-based API gateway with LLM proxy plugins and MCP server hosting | 61 out of 100 |