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agentgateway is a Rust-based open source proxy for AI-native protocols, offering MCP and A2A gateway capabilities, security, observability, and governance across AI agent communications.
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703forks
333issues
Apache-2.0license
2025since
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Reviewgenerated from repository data · Aug 5, 2026
What it is
Agentgateway is an open source proxy built on AI-native protocols (MCP and 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.
How it works
The project implements multiple gateway capabilities:
- LLM Gateway: routes traffic to major LLM providers via a unified OpenAI-compatible API with controls and features like budget management, prompt enrichment, load balancing, and failover.
- MCP Gateway: connects LLMs to tools and external data sources using MCP with tool federation and various transports including stdio/HTTP/SSE/Streamable HTTP, plus OpenAPI integration and OAuth authentication.
- A2A Gateway: enables secure agent-to-agent communication with capability discovery, modality negotiation, and task collaboration.
- Inference Routing: routes to self-hosted models using Kubernetes Inference Gateway extensions, based on GPU utilization, KV cache, LoRA adapters, and queue depth.
- Guardrails: supports content filtering via regex, OpenAI moderation, and integrations with external guardrails.
- Security & Observability: supports authentication (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.
Recent releases
Latest releases include:
- v1.4.1 (2026-07-29): Docker images available:
- cr.agentgateway.dev/agentgateway:v1.4.1
- cr.agentgateway.dev/controller:v1.4.1
- v1.4.0 (2026-07-27): Docker images available:
- cr.agentgateway.dev/agentgateway:v1.4.0
- cr.agentgateway.dev/controller:v1.4.0
- v1.4.0-beta.1 (2026-07-25): Docker images available:
- cr.agentgateway.dev/agentgateway:v1.4.0-beta.1
- cr.agentgateway.dev/controller:v1.4.0-beta.1
- v1.4.0-alpha.2 (2026-07-21): Docker images available:
- cr.agentgateway.dev/agentgateway:v1.4.0-alpha.2
- cr.agentgateway.dev/controller:v1.4.0-alpha.2
- v1.4.0-alpha.1 (2026-07-06): Docker images available:
- cr.agentgateway.dev/agentgateway:v1.4.0-alpha.1
- cr.agentgateway.dev/controller:v1.4.0-alpha.1
Traction
Stars: 4213 Open issues: 333
Behind the repo
Not provided in the facts.
Caveats
License: Apache-2.0 Created: 2025-03-18 Last push: 2026-08-04