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Kuri

kuri is a Rust framework for building Model Context Protocol (MCP) servers, focusing on developer experience and code clarity. It supports defining tools and prompts through simple macros to enable interaction between LLMs and the external world.
Developer toolsArtificial intelligence chatbots#Rust framework#MCP service#Developer-friendly#LLM interaction.Rust
2 points
9.7K
Open Site

Overview

Content Details

Alternatives

What is kuri?

kuri is a framework that helps developers build MCP servers in Rust. MCP (Model Context Protocol) allows AI models to execute predefined functions (called 'tools') to fetch data or interact with external systems. kuri makes building these servers easy and enjoyable.

How to use kuri?

Developers write regular Rust functions and annotate them with simple attributes to expose them as MCP tools. The framework handles all the protocol details automatically.

Use Cases

Building AI-powered applications where the AI needs to perform calculations, fetch data, or interact with other systems through well-defined interfaces.

Key Features

Seamless Rust Integration
Write tools as normal async Rust functions with minimal annotations
Tower Ecosystem Compatibility
Leverage existing middleware for timeouts, tracing, and more
MCP Protocol Support
Full support for core MCP specification including tools and prompts
Advantages
Excellent developer experience with clean, idiomatic Rust
Strong type safety and correctness guarantees
Minimal boilerplate and configuration
Reuse existing Rust ecosystem components
Limitations
Currently only supports stdin/stdout transport (HTTP coming soon)
Some advanced MCP features like Resources not yet implemented
Requires Rust knowledge to use effectively

Getting Started

Add dependencies
Include kuri and required crates in your Cargo.toml
Define your tools
Write async functions and annotate them with #[tool] or #[prompt]
Build and run service
Create the MCP service and register your tools

Example Use Cases

Calculator Tool
A simple arithmetic calculator that the AI can use to perform calculations
Text Summarization
Generates prompts for summarizing text in different formats

Frequently Asked Questions

What is MCP?
Do I need to know Rust to use kuri?
When will HTTP transport be available?

Additional Resources

MCP Specification
Official Model Context Protocol documentation
kuri GitHub Repository
Source code and issue tracker
Rust Programming Language
Official Rust website

Installation

Copy the following command to your Client for configuration
Note: Your key is sensitive information, do not share it with anyone.

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