OpenRouter
One API key for hundreds of AI models.
Free plan, paid from Pay per tokenGiving your app or agent a model API
Free plan; pay-as-you-go plans add a platform fee on credits. Checked 2026-10-14.
Quick start
Create a key with a monthly spending limit and set OPENROUTER_API_KEY.
Good and not so good
- Switch models without code changes
- Usage limits per key
- Platform fee on paid usage
Use cases with OpenRouter
No use cases yet. Add an agent use case.
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