MCP Grpc Transport

@rustycl0ck

代码仓库

基本信息

分类

开发工具

许可证

MIT license

传输方式

stdio

作者

rustycl0ck

关于 MCP Grpc Transport

gRPC transport for MCP servers

#golang #mcp #grpc

MCP Grpc Transport 配置

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代码仓库

MCP Grpc Transport 工具

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概览

What is mcp-grpc-transport?

mcp-grpc-transport is an MCP transport that uses gRPC for communication between client and server. It is designed for developers who want to host MCP servers on remote instances, leveraging existing gRPC infrastructure for authentication and authorization.

How to use mcp-grpc-transport?

Replace the default stdio transport with grpctransport.NewGrpcServerTransport() in your server code. Customize via options like WithPort and WithGrpcOpts. For clients, use the provided CLI tool (go run github.com/rustycl0ck/mcp-grpc-transport/cmd/client@latest) or configure your IDE (e.g., Cursor) to launch the client as the MCP command.

Key features of mcp-grpc-transport

Integrates MCP with gRPC for remote hosting.
Currently supports the metoro-io/mcp-golang library.
Server customization via gRPC options (port, interceptors, message size, TLS).
Includes a ready-to-use client tool for testing and IDE integration.

Use cases of mcp-grpc-transport

Run an MCP server on a remote cloud instance and connect local IDE clients.
Reuse existing gRPC authentication/authorization middleware for MCP servers.
Build language-agnostic MCP servers that can be called via any gRPC client.

常见问题

Which MCP library does it support?

Only the [`metoro-io/mcp-golang`](https://github.com/metoro-io/mcp-golang) library is currently supported.

How do I customize the server transport?

Use `grpctransport.NewGrpcServerTransport()` with options like `grpctransport.WithPort(port)` and `grpctransport.WithGrpcOpts(...)` to set interceptors, message size limits, and TLS credentials.

How do I connect my IDE to a remote server?

Configure your IDE’s MCP client to run the provided client tool, specifying the server address via the `--address` flag. Example for Cursor’s `mcp.json`: `"command": "go", "args": ["run", "github.com/.../client@latest", "--address", "localhost:50051"]`.

What are the runtime dependencies?

The server depends on the `metoro-io/mcp-golang` library and gRPC (`google.golang.org/grpc`). Both are Go modules.

Does it support TLS?

Yes. Pass `grpc.Creds(insecure.NewCredentials())` for testing or use proper TLS credentials via `credentials.NewTLS()`. The README recommends TLS in production.

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