nanocode

Minimal Claude Code alternative using DSPy ReAct! Single Python file, zero dependencies, ~250 lines.

Built using Claude Code, then used to build itself.

• Full agentic loop with tool use
• Tools: read, write, edit, glob, grep, bash
• Conversation history
• Colored terminal output

Use OpenRouter to access any model:

export OPENROUTER_API_KEY="your-key"
python nanocode.py

To use a different model:

export OPENROUTER_API_KEY="your-key"
export MODEL="openai/gpt-5.2"
python nanocode.py

• /c - Clear conversation
• /q or exit - Quit

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❯ what files are here?
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⏺ Glob(**/*.py)
  ⎿  nanocode.py

⏺ There's one Python file: nanocode.py

MIT