The best-tested open source axum repos

The repos, ranked

1. 1.

   tinyhumansai/openhuman

   The fastest, cheapest, most efficient open-source agent harness. Run more than 500 agents on a $10 VPS.

   75% of its code files have a test that imports them · 2,956 test files

   Rust42.4kAI 1.6%What it’s built withThe AI
2. 2.

   headroomlabs-ai/headroom

   Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.

   68.2% of its code files have a test that imports them · 1,190 test files

   Python78.3kAI 28%What it’s built withThe AI
3. 3.

   sgl-project/sglang

   SGLang is a high-performance serving framework for large language models and multimodal models.

   57.8% of its code files have a test that imports them · 4,053 test files

   Python+138.3kAI 8.3%What it’s built withThe AI
4. 4.

   codewhale-hq/Codewhale

   Open-source agent for the terminal written in Rust. Use any provider or model. Issues & PRs always welcome

   41.5% of its code files have a test that imports them · 555 test files

   Rust+241.2kAI 41.3%What it’s built withThe AI
5. 5.

   farion1231/cc-switch

   A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io

   36.7% of its code files have a test that imports them · 307 test files

   Rust150kAI 1.7%What it’s built withThe AI
6. 6.

   FuelLabs/fuel-core

   Rust full node implementation of the Fuel v2 protocol.

   33% of its code files have a test that imports them · 166 test files

   Rust56.8kAI 0.7%What it’s built with
7. 7.

   aaif-goose/goose

   an open source, extensible AI agent that goes beyond code suggestions - install, execute, edit, and test with any LLM

   21.9% of its code files have a test that imports them · 227 test files

   Rust+155.9kAI 4.9%What it’s built withThe AI
8. 8.

   BerriAI/litellm

   The fastest, litest AI Gateway. Rust core with Python SDK. Call 100+ LLM APIs in OpenAI (or native) format with cost tracking, guardrails, load balancing, and logging [Bedrock, Azure, OpenAI, Anthropic, OpenAI, VertexAI, vLLM, Nvidia NIM]

   21.7% of its code files have a test that imports them · 6,741 test files

   Python+662.4kAI 20%What it’s built withThe AI
9. 9.

   zed-industries/zed

   Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

   18% of its code files have a test that imports them · 139 test files

   Rust92.4kAI 0.5%What it’s built withThe AI
10. 10.

    hoppscotch/hoppscotch

    Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

    16.7% of its code files have a test that imports them · 254 test files

    TypeScript+380.7kAI 0.4%What it’s built withThe AI
11. 11.

    AlexsJones/llmfit

    Hundreds of models & providers. One command to find what runs on your hardware.

    10.5% of its code files have a test that imports them · 16 test files

    Rust38.5kAI 19.8%What it’s built withThe AI
12. 12.

    unionlabs/union

    The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

    10.4% of its code files have a test that imports them · 120 test files

    Rust+173.7kWhat it’s built with
13. 13.

    spacedriveapp/spacedrive

    Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

    5.3% of its code files have a test that imports them · 122 test files

    Rust+139.4kAI 6.3%What it’s built withThe AI

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