Bifrost

Open-source AI gateway that unifies 1000+ models behind one OpenAI-compatible endpoint with failover, budgets, and MCP routing.

Freemium· Open-source core (Apache 2.0); Enterprise tier with 14-day free trial, pricing on requestAgentsMulti-model (OpenAI, Anthropic, Bedrock, Vertex, 1000+ via providers)

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Best for

Pick Bifrost if you are running multi-provider LLM traffic at scale and need one gateway that does routing, budgets, MCP, and audit instead of stitching them yourself.

Skip if

Skip it if you are a solo developer calling one model from one app — a direct SDK call or a lighter proxy will do.

Bifrost is Maxim's enterprise AI gateway: a single control plane that fronts 8+ LLM providers and 1000+ models (OpenAI, Anthropic, Bedrock, Vertex, and friends) behind one OpenAI-compatible API. It handles automatic provider fallback, team-level budgets, SSO, audit logs, guardrails, and an MCP gateway for centralizing tool/agent connections. OpenTelemetry observability is built in, and the team publishes benchmarks claiming ~20 microseconds of added latency and ~5,000 req/s on a single node.

It is built for platform and infra teams at companies that have outgrown a hand-rolled LLM router — especially in regulated sectors like finance, healthcare, and insurance where governance, audit, and per-team spend caps matter. The code is Apache 2.0 on GitHub, so you can self-host the core gateway for free; Bifrost Enterprise adds the hosted control plane, SSO/RBAC, and support, with a 14-day free trial and pricing gated behind sales.

It is positioned as a faster, more opinionated alternative to LiteLLM and similar proxy layers, and it slots into existing stacks as a drop-in replacement for the OpenAI/Anthropic SDKs and LangChain. The main caveat is that the value really shows up at scale — if you only call one model from one app, this is more gateway than you need.

Editor's take

Bifrost is one of the more credible LiteLLM challengers we have seen, mostly because Maxim ships the core under Apache 2.0 and pairs it with an actual enterprise control plane rather than a thin hosted wrapper. The MCP gateway angle is the interesting bet — if MCP becomes the de facto tool protocol, having governance at that layer matters.

— The AI Tool Bible editorial team