RustAPI 🦀

FastAPI ergonomics. Rust performance. AI‑ready by design.

RustAPI is a modern, batteries‑included Rust web framework designed for building high‑performance APIs with an exceptional developer experience.

Inspired by FastAPI, RustAPI lets you define complete REST endpoints in just a few lines of code — with automatic OpenAPI documentation, strong typing, and async performance out of the box.

✨ Why RustAPI?

• ⚡ FastAPI‑like ergonomics in Rust
• 🦀 Built for performance, safety, and scalability
• 📄 Automatic OpenAPI / Swagger documentation
• 🔐 Built‑in JWT authentication, CORS, and rate limiting
• 🧠 MCP‑ready with native TOON format support for LLMs
• 🧩 Modular, opt‑in features via Cargo flags

🤖 AI & MCP First‑Class Support

RustAPI is designed with AI backends and MCP servers in mind.

With native TOON format support, RustAPI enables:

• 📉 40–60% token savings for LLM payloads
• 🚀 Faster request / response cycles
• 🧠 Seamless integration with modern AI workflows

Perfect for:

• MCP servers
• LLM‑powered APIs
• AI agents and orchestration layers

🛠 Developer Experience That Scales

RustAPI focuses on clarity and productivity without sacrificing control:

• Type‑safe request & response handling
• Schema auto‑registration via macros
• Clean, minimal API surface
• Async‑first architecture powered by Tokio

Write less boilerplate. Ship faster. Stay in Rust.

🚀 Use Cases

• REST & JSON APIs
• AI / LLM backends
• Microservices
• Internal tooling
• High‑performance web services

📦 Getting Started

Install via Cargo:

cargo add rustapi-rs

Define an API endpoint in minutes and get instant docs at /docs.

🌍 Open Source & Community‑Driven

RustAPI is open source and actively evolving.

Contributions, feedback, and ideas are always welcome.

⭐ Star the repo if RustAPI helps you build better APIs.

RustAPI API surface is yours. Engines can change.