agentgateway/agentgateway

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Agentgateway is an open source proxy built on AI-native protocols (MCP & A2A) that provides drop-in security, observability, and governance for agent-to-LLM, agent-to-tool, and agent-to-agent communication across any framework and environment.

Intro to Agentgateway Video

Key Features

• LLM Gateway
  

Route traffic to major LLM providers (OpenAI, Anthropic, Gemini, Bedrock, and more) through a unified OpenAI-compatible API with budget and spend controls, prompt enrichment, load balancing, and failover.

• MCP Gateway
  

Connect LLMs to tools and external data sources via MCP with tool federation, stdio/HTTP/SSE/Streamable HTTP transports, OpenAPI integration, and OAuth authentication.

• A2A Gateway
  

Enable secure agent-to-agent communication using A2A, with capability discovery, modality negotiation, and task collaboration.

• Inference Routing
  

Intelligent routing to self-hosted models using Kubernetes Inference Gateway extensions, with decisions based on GPU utilization, KV cache, LoRA adapters, and queue depth.

• Guardrails
  

Multi-layered content filtering with regex, OpenAI moderation, AWS Bedrock Guardrails, Google Model Armor, and custom webhooks.

• Security & Observability
  

Auth (JWT, API keys, OAuth), fine-grained RBAC with CEL policy engine, rate limiting, TLS, and OpenTelemetry metrics/logs/tracing.

Getting Started

• Standalone Quickstart — Get started with agentgateway in minutes.
• Kubernetes Quickstart — Deploy on Kubernetes using the built-in controller and Gateway API.

Documentation

Depending on your deployment environment, check out the following docs:

• agentgateway.dev/docs: For deployments without the full Kubernetes controller, driven by flat yaml config.
• agentgateway.dev/docs/kubernetes/latest: For Kubernetes-based deployments using the built-in Kubernetes controller and Gateway API support.

Agentgateway has a built-in UI for you to explore agentgateway connecting agent-to-agent or agent-to-tool:

Sponsors

Thank you to our sponsors for helping to fund the development of agentgateway!

Contributing

For instructions on how to contribute to the agentgateway project, see the CONTRIBUTION.md file.

Community Meetings

To join a community meeting, add the agentgateway calendar to your Google account. Then, you can find event details on the calendar.

Recordings of the community meetings will be published on our google drive.

Roadmap

agentgateway is currently in active development. If you'd like a feature that's missing, open an issue in our GitHub repo.

Contributors

Thanks to all contributors who are helping to make agentgateway better.

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