Supergateway is a remote debugging and integration tool designed for MCP (Model Context Protocol) servers. It enables efficient communication between servers and clients based on stdio through SSE (Server-Sent Events) or WebSocket (WS) protocols. The following is a detailed analysis of its core functions and usage scenarios:
Core functions- Multi-protocol support
- Supports two-way communication between SSE and WebSocket, covering data transmission requirements in different scenarios. For example, you can convert a local stdio mode MCP server to an SSE/WS service for easy remote debugging or client integration.
- Provides multiple mode switching, such as
stdio→SSE、SSE→stdio、stdio→WS, flexibly adapt to the development and production environment.
- Convenient deployment and operation
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Local Quick Start:pass
npxOne line of commands can be run, for examplenpx -y supergateway --stdio "uvx mcp-server-git", no complicated configuration is required.
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Docker Support: Provide official mirror
supercorp/supergateway, can run directly in a containerized environment to avoid local dependencies.
- Scalability and stability
- Supports custom health check endpoints to ensure high service availability.
- Provide log level control (
info/none) and port customization (default 8000) for easy monitoring and debugging.
Typical usage scenarios-
Remote debugging of MCP serverpass--sseParameters connect to the remote SSE server, or expose the local stdio service to SSE/WS endpoints to implement cross-network debugging. For example:
npx -y supergateway --sse ""
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Client IntegrationIf the client only supports the SSE/WS protocol, and the MCP server is based on stdio, Supergateway can act as an intermediate layer to implement protocol conversion. For example:
npx -y supergateway --stdio "npx -y @modelcontextprotocol/server-filesystem ./my-folder" --port 8000
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Co-development in the cloud and on-premisesCombined with Docker deployment, you can quickly build a debugging environment in the cloud and interact in real time through local tool connections.
stdio→SSE、SSE→stdio、stdio→WS, flexibly adapt to the development and production environment.npxOne line of commands can be run, for examplenpx -y supergateway --stdio "uvx mcp-server-git", no complicated configuration is required.supercorp/supergateway, can run directly in a containerized environment to avoid local dependencies.info/none) and port customization (default 8000) for easy monitoring and debugging.-
Remote debugging of MCP serverpass
--sseParameters connect to the remote SSE server, or expose the local stdio service to SSE/WS endpoints to implement cross-network debugging. For example:npx -y supergateway --sse ""
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Client IntegrationIf the client only supports the SSE/WS protocol, and the MCP server is based on stdio, Supergateway can act as an intermediate layer to implement protocol conversion. For example:
npx -y supergateway --stdio "npx -y @modelcontextprotocol/server-filesystem ./my-folder" --port 8000
- Co-development in the cloud and on-premisesCombined with Docker deployment, you can quickly build a debugging environment in the cloud and interact in real time through local tool connections.
docker run -it --rm -p 8000:8000 supercorp/supergateway --stdio "npx -y @modelcontextprotocol/server-filesystem /" --port 8000
Project Resources-
GitHub repository：supercorp-ai/supergateway(As of March 2025, 490 stars)
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Docker image：supercorp/supergateway
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Official Documentation：Model Context Protocol Specification
Summarize
The core value of Supergateway is to simplify the remote access and protocol adaptation process of MCP servers, especially for developers who need to collaborate across environments. Its lightweight design, multi-mode support and containerized deployment capabilities make it a practical tool for debugging and integration of AI model services. For in-depth technical details, it is recommended to refer to the official documentation or GitHub sample code.