Higress
BifrostHigress and Bifrost both combine LLM gateway and MCP functionality in an Apache 2.0 binary. Higress is Envoy-based from Alibaba with built-in MCP hosting and OpenAPI-to-MCP conversion; Bifrost is Go-based from Maxim AI with dual-role MCP client plus server and a lighter operational footprint.
LiteLLM
BifrostLiteLLM and Bifrost both cover LLM gateway plus MCP territory. LiteLLM is Python-first with mature tooling and an open-core commercial tier; Bifrost is Go-first Apache 2.0 from Maxim AI with a lighter operational footprint and SAML as a commercial feature.