Fast growing
The 20 AI agent harnesses gaining GitHub stars fastest right now.
| # | Project | Stars | Δ 7d | Δ 30d | 90d trend | Age | Lang | Last push |
|---|---|---|---|---|---|---|---|---|
| 1 | deepseek-ai/deepseek-harness DeepSeek Harness: Everything is a Plugin. | 211.8k | +10,409 | +211,759 | 3 wk | TypeScript | 1h ago | |
| 2 | stablyai/orca Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription.… | 61.4k | +5,679 | +23,574 | 5 mo | TypeScript | 10m ago | |
| 3 | diegosouzapw/OmniRoute Never stop coding. Free MIT AI gateway: one endpoint, 352 providers (150+ free), 1200+ models Kimi, Claude, GP… | 61.0k | +3,816 | +20,848 | 6 mo | TypeScript | 4h ago | |
| 4 | earendil-works/pi AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI | 101.7k | +3,087 | +17,720 | 1 yr | TypeScript | 1h ago | |
| 5 | K-Dense-AI/scientific-agent-skills Turn any AI agent into an AI Scientist. The #1 Agent Skills library for science, used by 190,000+ scientists w… | 42.5k | +6,879 | +9,810 | 10 mo | Python | 1d ago | |
| 6 | NousResearch/hermes-agent The agent that grows with you | 241.2k | +3,638 | +15,386 | 1 yr | Python | 1h ago | |
| 7 | Graphify-Labs/graphify Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. A /graphif… | 114.6k | +2,819 | +11,808 | 5 mo | Python | 4d ago | |
| 8 | MadsLorentzen/ai-job-search The job search that runs on your machine. AI job application framework built on Claude Code: evaluate postings… | 40.7k | +3,258 | +10,783 | 5 mo | Python | 17h ago | |
| 9 | calesthio/OpenMontage World's first open-source, agentic video production system. 12 production pipelines, 100+ tools, 700+ agent sk… | 56.1k | +3,211 | +10,848 | 5 mo | Python | 12d ago | |
| 10 | openai/codex Lightweight coding agent that runs in your terminal | 121.4k | +2,002 | +17,364 | 1 yr | Rust | 48m ago | |
| 11 | firecrawl/firecrawl The context API to search, scrape, and interact with the web at scale. 🔥 | 176.3k | +2,902 | +14,938 | 2 yrs | TypeScript | 1h ago | |
| 12 | herdrdev/herdr the runtime your coding agents live on | 35.2k | +2,142 | +10,692 | 5 mo | Rust | 11h ago | |
| 13 | affaan-m/ECC The agent harness performance optimization system. Skills, instincts, memory, security, and research-first dev… | 247.7k | +3,872 | +9,851 | 7 mo | JavaScript | 14h ago | |
| 14 | nexu-io/open-design 🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop app… | 94.0k | +1,728 | +10,160 | 4 mo | TypeScript | 36m ago | |
| 15 | bojieli/ai-agent-book 《深入理解 AI Agent：设计原理与工程实践》（李博杰 著）开源主仓库：全书正文、编译版 PDF 与按章配套代码 | 44.7k | +1,694 | +12,177 | 12 mo | Python | 4h ago | |
| 16 | anomalyco/opencode The open source coding agent. | 203.7k | +1,621 | +10,096 | 1 yr | TypeScript | 23m ago | |
| 17 | browser-use/video-use Edit videos with coding agents | 23.9k | +2,420 | +4,310 | 4 mo | Python | 5d ago | |
| 18 | yjh051108/dsh-routing-suite dsh-routing-suite — injector + router-standard kit: install the runtime injector first, then the task-aware re… | 7.1k | +146 | +7,068 | 3 wk | JavaScript | 1d ago | |
| 19 | hoainho/img2threejs Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js mo… | 15.2k | +897 | +5,370 | 1 mo | Python | 2h ago | |
| 20 | img2threejs/img2threejs Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js mo… | 15.2k | +897 | +5,370 | 1 mo | Python | 2h ago |
Methodology
We find candidates through GitHub Search (agent-related topics and keywords, plus a radar for repos younger than 90 days), then snapshot every repo in the pool once a day via the GraphQL API. For new entries we rebuild star history from sampled stargazer timestamps.
Fast growing ranks by (2 × stars_7d + stars_30d) × youth_bonus. Last week counts double, and young repos get a boost so giants don't bury newcomers. The other rankings sort by stars, by repo age, and by 👍 reactions on open issues.
Exclusions:archived repositories, inactive repos (no pushes in 60 days), awesome-lists, and prompt collections. We define a “harness” as a tool or framework that orchestrates an LLM to complete tasks — tool calling, context management, agentic loops. Models themselves, API wrappers, and prompt libraries do not qualify.