Until recently, using Claude for coding workflows meant relying on paid API usage.
Now, thereโs a powerful workaround:
๐ You can run Claude Code against a local Ollama endpoint, using open-source models like qwen2.5:3b.
This enables a fully local AI coding assistant โ no per-token billing, and full control over your environment.
โ๏ธ Setup Guide
1. Install Ollama
brew install ollama
2. Pull a Coding Model
ollama pull qwen2.5:3b
3. Install Claude Code
npm install -g @anthropic-ai/claude-code
4. Configure Local Endpoint
export ANTHROPIC_AUTH_TOKEN=ollama
export ANTHROPIC_BASE_URL=http://localhost:11434
5. Run Claude Code Locally
claude --model qwen2.5:3b
๐ง What This Actually Does
Instead of sending requests to Anthropicโs servers, Claude Code:
- Calls a local API (Ollama)
- Uses an open-source LLM
- Executes agentic workflows on your machine
โจ Benefits
- No API cost โ completely free usage
- Privacy-first โ your code never leaves your system
- Flexible models โ switch between different open-source LLMs
- Offline capability โ works without internet
โ ๏ธ Limitations
Letโs be honest:
- Not equivalent to Claude Sonnet/Opus quality
- Smaller models struggle with complex reasoning
- Performance depends on your hardware
For example:
- 3B models โ fast but limited
- 7Bโ13B โ balanced
- 30B+ โ powerful but slow on laptops
๐ก When to Use This
Best use cases:
- Local development assistant
- Code autocomplete / small tasks
- Privacy-sensitive projects
- Cost-sensitive workflows
๐ Final Thoughts
This setup represents a shift toward:
Local-first AI development
While cloud models still lead in performance, local setups are becoming increasingly practical for everyday workflows.
And for developers, this means:
๐ More control
๐ Lower cost
๐ Faster experimentation
โญ If you're building with local AI agents, Iโd love to hear your setup.
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