MCP Grpc Transport

@rustycl0ck

Repository

Basic information

About MCP Grpc Transport

gRPC transport for MCP servers

#golang #mcp #grpc

MCP Grpc Transport config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

MCP Grpc Transport tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

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.

Frequently asked questions

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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