agentgateway
Platforms & harness multiplexersagentgateway
agentgateway is an open-source proxy for agent-to-LLM, agent-to-tool and agent-to-agent traffic, built on MCP and A2A with security, observability and governance.
- Open source (Apache-2.0)
- MCP gateway
- A2A
- Kubernetes
At a glance
agentgateway is in the directory but not on our ranked shortlists, and we have no traction figure for it yet.
Key facts
As of Nov 12, 2026
- Who it's for
- Platform teams putting authentication, rate limits and audit in front of MCP servers, LLM providers and agents.
- What does it do?
- An agentic proxy with an LLM gateway (one OpenAI-compatible API over OpenAI, Anthropic, Gemini, Bedrock and more), an MCP gateway with tool federation and OAuth, an A2A gateway, inference routing, guardrails, and auth with RBAC.
- What does it cost?
- Free and open source under Apache-2.0. The site also lists an Enterprise option.
- Where does it run?
- Self-hosted, either standalone or on Kubernetes.
- Which protocols and providers does it support?
- MCP over stdio, HTTP, SSE and Streamable HTTP, A2A, OpenAPI, and major LLM providers.
- Who makes it?
- The agentgateway project (GitHub org agentgateway).
Common questions
What is agentgateway?
agentgateway is an open-source proxy for agent-to-LLM, agent-to-tool and agent-to-agent traffic, built on MCP and A2A with security, observability and governance.
Who is agentgateway for?
Platform teams putting authentication, rate limits and audit in front of MCP servers, LLM providers and agents.
How much does agentgateway cost?
Free and open source under Apache-2.0. The site also lists an Enterprise option. Checked against the vendor's pages on Nov 12, 2026. Plans change often, so confirm before you decide.
Does agentgateway run locally or in the cloud?
agentgateway runs in the vendor's cloud. You use it through chat apps and an API.
What are alternatives to agentgateway?
See the Platforms & harness multiplexers shortlist for the other options.
Compare agentgateway
No head-to-head pages for this one yet.