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Open MCP Gateway
Bun and TypeScript MCP-to-OpenAPI 3.1 gateway for aggregating local MCP services into HTTP REST routes usable by Open WebUI and other OpenAPI tool clients. It supports native binary stdio, script stdio, SSE, and HTTP MCP transports, generates strict OpenAPI schemas, uses blue-green session pools for hot reloads, honors reverse-proxy headers, and keeps config, data, state, and cache under XDG paths. Public GitHub repository created September 20, 2026.
MCP unverified
Integration
| Transport | http |
| Auth | none |
| Endpoint | open-mcp-gateway local HTTP service |
| Install | git clone https://github.com/TiancongLx/open-mcp-gateway.git && cd open-mcp-gateway && bun install && bun run build |
Use Cases
| 01 | Expose multiple local MCP servers as OpenAPI 3.1 documents for Open WebUI tool registration |
| 02 | Hot-reload MCP service configs without interrupting in-flight gateway requests |
| 03 | Bridge stdio, SSE, and HTTP MCP transports into a reverse-proxy-friendly HTTP surface |
Tags
gateway openapi open-webui bun typescript stdio-bridge sse http
Machine-readable: /api/servers.json
· JSON-LD schema embedded in <head>