# OpenClaw API Key: Which Key Does Your AI Agent Need?

You installed OpenClaw. The setup wizard asks for an API key. Which one? From where? Will it cost $200 next month if you pick wrong?

This guide covers which OpenClaw API key you need, how to get it, and why you might not need one at all.

**Providers covered:**
- Anthropic (Claude)
- OpenAI (GPT)
- Google (Gemini)
- DeepSeek
- OpenRouter

DeepSeek costs 10x less than Claude. Gemini has a 1M token context window. Which fits your use case?

**[Read the complete guide on yixn.io](https://yixn.io/en/blog/posts/openclaw-api-key-guide)**