Kong/kong
Kong Gateway is a cloud-native, scalable API gateway that manages API, AI LLM, and Model Context Protocol (MCP) traffic with advanced security, observability, and extensibility features.
open-webui/openapi-servers
OpenAPI Tool Servers is a project that provides reference implementations and bridging tools to integrate OpenAPI-based tool servers with Model Context Protocol (MCP) servers. The goal is to enable secure, standardized APIs for AI applications and workflows by leveraging the widely adopted OpenAPI specification. This eliminates the need for proprietary or unfamiliar communication protocols, allowing developers to quickly build or integrate servers with minimal learning curve. The project emphasizes the use of OpenAPI due to its established standard, ease of integration and hosting, strong security focus, and long-term community support. The repository includes several reference server implementations demonstrating common use cases such as filesystem access, Git repository management, persistent memory and knowledge graph querying, weather data provision, user profile information retrieval, SQL database interaction with natural language query generation, and external Retrieval-Augmented Generation (RAG) tool integration. These examples are designed to be easily adaptable to different technology stacks. Additionally, the project offers optional bridging tools to convert MCP servers to OpenAPI-compatible APIs and vice versa. This interoperability allows developers to expose MCP tools as OpenAPI APIs using tools like mcpo or a Python-based proxy server, and also to expose OpenAPI tool servers as MCP servers using community-maintained projects. This two-way bridge simplifies tool architecture and empowers developers to choose the most efficient and future-proof infrastructure without compromising compatibility. The project is open for community contributions to expand the ecosystem of OpenAPI tool servers, promoting an open, composable API environment for AI tools. It is licensed under the MIT License and supported by the Open WebUI community, which encourages discussions and feedback through their GitHub discussions page.
https://github.com/open-webui/openapi-servers
Also in Gateways
alibaba/higress
Higress is a cloud-native AI native API gateway by Alibaba that supports hosting Model Context Protocol (MCP) servers, enabling unified management of AI and LLM APIs with extensible Wasm plugins and enterprise-grade features.
IBM/mcp-context-forge
IBM/mcp-context-forge is a production-grade MCP Gateway that unifies and manages MCP and REST services, providing a secure, scalable, and feature-rich interface for AI clients.
open-webui/mcpo
mcpo is a secure and simple proxy server that exposes Model Context Protocol (MCP) tools as OpenAPI-compatible HTTP servers, enabling seamless integration with LLM agents and applications.
sparfenyuk/mcp-proxy
mcp-proxy is a proxy server tool that enables communication between MCP servers using stdio and SSE transport protocols, facilitating interoperability within the MCP ecosystem.
metatool-ai/metamcp
MetaMCP is a proxy server that aggregates multiple MCP servers into a unified MCP server endpoint, applies middleware, and hosts these endpoints for seamless integration with MCP clients.
samanhappy/mcphub
MCPHub is a unified management platform that aggregates multiple Model Context Protocol (MCP) servers into streamable HTTP endpoints, providing centralized control, real-time monitoring, secure access, and intelligent tool discovery for efficient AI tool integration.
mcp-ecosystem/mcp-gateway
MCP Gateway is a lightweight, configuration-driven gateway service that converts existing APIs into MCP protocol-compliant endpoints without code changes, supporting Docker and Kubernetes deployments with a built-in management UI.