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rust-mcp-sdk
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rust-mcp-sdk

Active·★ 198·MIT·Updated 2026-10-19

Rust MCP SDK is a high-performance, asynchronous Rust toolkit designed for building MCP (Model Context Protocol) servers and clients. It abstracts away protocol details and transport mechanisms, allowing developers to concentrate on their core application logic. The SDK provides comprehensive support for the latest MCP protocol, including various transports and powerful procedural macros for streamlined development.

#Rust#MCP Protocol#SDK#Asynchronous#Server Development#Client Development
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Guides
#Macros
#Authentication
$ Install
$ cargo add rust-mcp-sdk
↗ Visit site★ GitHub
01

Features

01Supports the latest MCP protocol specification (2025-11-25) with backward compatibility.
02Provides multiple transport options: Stdio, Streamable HTTP, and backward-compatible SSE.
03Includes a lightweight Axum-based server for Streamable HTTP and SSE with multi-client concurrency.
04Offers powerful procedural macros (mcp_tool, mcp_elicit, etc.) for type-safe schema and user input elicitation.
05Supports OAuth Authentication for MCP Servers, including Remote Oauth Provider integration with Keycloak, WorkOS, and Scalekit.
02

Compatibility

Rust
Runtime
Verified via docs
03

Quick start

1
$ cargo add rust-mcp-sdk
04

Use cases

↳Building high-performance MCP servers that interact with various clients using different transport mechanisms (Stdio, HTTP).
↳Developing custom MCP clients to communicate with MCP servers, manage tools, and handle messages.
↳Integrating filesystem operations into MCP applications using the rust-mcp-filesystem project.
↳Creating AI-powered applications that leverage MCP for tool calls and structured interactions, as seen in projects like mistral.rs and text-to-cypher.
↳Developing command-line tools for discovering and documenting MCP Server capabilities (e.g., MCP Discovery).
05

Alternatives

⚡Top VS:
VSmcp-annotated-java-sdk★33→VSmcp-server★288→VSwanaku★134→

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rust-mcp-stack /
rust-mcp-sdk
↗

A high-performance, asynchronous toolkit for building MCP servers and clients in Rust.

198MIT
Last commit4d ago
StatusActive
CategoryRAG / Knowledge Base
Links
Documentation↗Discussion↗Issues↗Releases↗
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