The new open‑source repo aattaran/deepclaude lets developers run Claude Code’s autonomous agent loop on cheaper backends such as DeepSeek V4 Pro, OpenRouter, or any Anthropic‑compatible API. Claude Code previously required a $200‑per‑month subscription with strict usage caps; swapping the model drops the per‑token price to $0.87 while preserving the full CLI experience, including file editing, git commands and bash execution.

Installation takes under two minutes: users obtain a DeepSeek API key, set a single environment variable, and link the provided script into their PATH. The wrapper reads variables like DEEPSEEK_API_KEY or OPENROUTER_API_KEY, launches Claude Code, then restores original settings on exit. Benchmarks show DeepSeek’s automatic context caching reduces repeat‑turn costs to $0.004 per million tokens, and supports Windows, macOS, and Linux.

Feature parity remains high: file operations, git workflows, glob searches and multi‑step tool loops run unchanged. Image input and parallel tool execution are unsupported, and complex reasoning still favors Anthropic’s Opus tier, which can be selected with the –backend flag. The project ships under an MIT license, making it a practical, low‑cost alternative for routine coding automation for developers everywhere.