agentgateway vs bifrost
agentgateway: Agentgateway is an open-source proxy offering a complete connectivity solution for Agentic AI, built on AI-native protocols like MCP and A2A. It provides security, observability, and governance for agent-to-LLM, agent-to-tool, and agent-to-agent communication across various frameworks.; bifrost: Bifrost is a high-performance AI gateway that unifies access to over 15 AI providers through a single OpenAI-compatible API. It offers automatic failover, load balancing, semantic caching, and enterprise-grade features for building resilient AI applications that never go down.
Bifrost specializes in raw LLM token throughput, failover, and caching; AgentGateway focuses on agent identity, security authorization, and tool governance.
TL;DR
- You want one proxy for LLM calls (OpenAI-compatible API with spend controls, failover and load balancing), MCP tools and A2A traffic.
- You need guardrails from several sources: regex, OpenAI moderation, AWS Bedrock Guardrails, Google Model Armor or webhooks.
- You need security and observability built in: JWT, API keys, OAuth, RBAC with a CEL policy engine, rate limiting, TLS and OpenTelemetry.
- You only need to bridge one MCP transport: a small proxy is simpler.
- You want the inference-routing features without Kubernetes: the README ties them to Kubernetes Inference Gateway extensions.
- You want detailed setup instructions in the README: it is short and points to the documentation site.
- You operate high-throughput production AI applications and need an ultra-fast LLM gateway (50x faster than LiteLLM, <100 µs overhead at 5k RPS).
- You need unified access across 15+ model providers with automatic failover, adaptive load balancing, cluster mode, and semantic caching.
- You are running small low-traffic pet projects where direct provider SDK calls are sufficient without dedicated proxy infrastructure.
- You need visual prompt chaining, vector RAG pipelines, or chatbot web interfaces (Bifrost is an infra-level API router).
Side-by-Side Comparison
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