Anthropic API key — how to get and use it
Claude API integration docs: quickstart, authentication, endpoints and the model list.
Base URL — where to start
In 90% of cases the only thing you need to change is the Base URL — pick it based on your client's API format, everything else (the key, the models) stays the same.
| Client format | Base URL |
| OpenAI-compatible — Cursor, Zed, opencode, Codex CLI, OpenAI SDK | https://api.liteai.tech/v1 |
| Anthropic — Claude Code, Claude Desktop, Anthropic SDK | https://api.liteai.tech/anthropic |
Both accept the same sk-bf-... key. See Anthropic API key — authentication for the exact header, and Quickstart for ready-to-use configs for each tool.