Claw Code
#21 in IDE-Verwiederungen & Copilotensigrid-jin-yeachan-heo · siet 31. März 2026 (Veröffentlichung nach dem Claude-Code-Quellcode-Leak) · 15× · tolest 30. Juni 2026
Claw Code is an open-source AI coding agent framework created as a clean-room reimplementation of Anthropic's Claude Code architecture, following the accidental leak of Claude Code's source code in March 2026. It was built by Sigrid Jin together with Seoul-based developer Yeachan Heo, written in Python and Rust, without copying any proprietary Anthropic source code. The project rapidly amassed an extraordinary number of GitHub stars within hours to days, making it one of the fastest-growing repositories in GitHub history. The software itself is free to use; costs mainly arise from underlying LLM API usage (e.g., Anthropic, OpenAI).
Features
| Base Model | Provider-agnostic: supports multiple LLM providers (Claude, OpenAI, local models), no fixed base model |
| License | Open source, released under a permissive license on GitHub (MIT license for the associated repository) |
| Platform | Terminal-native (CLI), self-hostable, runs locally via Python/Rust runtime |
| Price | Software free/open source; costs only arise from LLM API usage (e.g., Claude, OpenAI) |
| Release Date | March 31, 2026, shortly after the Claude Code source code leak |
| Interface (IDE/CLI/Web) | CLI (terminal-native); no ACP/Zed IDE daemon available |
| Supported Languages | Codebase in Python and Rust (approx. 27% Python / 73% Rust, varying by fork) |