CAPI Gateway

CAPI Gateway is an open-source, lightweight API gateway and load balancer designed to proxy REST, WebSocket, SSE, and experimental MCP/gRPC services. It features automatic service discovery via HashiCorp Consul, OAuth2/OIDC security, distributed throttling, load balancing, observability with Prometheus metrics, and OpenTelemetry tracing. CAPI supports bridging existing REST APIs into the Model Context Protocol (MCP) ecosystem for LLM tools, making it suitable for teams building microservices, API orchestration, or LLM agent integrations.