Opencode + Claude
Claude is the most popular model used with opencode.
This guide explains how Claude works with opencode, how to set it up correctly, and how to avoid common configuration mistakes.
How opencode uses Claude
Opencode connects to Claude through the Anthropic API.
It does not use Claude Code credentials.
Claude Code vs Claude API
Many users confuse these two.
- Claude Code → a hosted coding experience
- Claude API → programmatic access (required by opencode)
If you use Claude Code credentials, opencode will fail.
Basic setup
export ANTHROPIC_API_KEY=your_api_key_here
Then run:
opencode
Common issues
Advanced usage
- Use Claude with MCP tools
- Combine Claude with Playwright or Figma
→ See Opencode MCP Guide