OpenRouter
./ThinkOne OpenAI-compatible endpoint in front of hundreds of hosted models, with automatic fallback and per-key spend limits
OpenAPIllms.txt
$ protocol support
$ payment protocols
none documented — this service is not reachable over an agent payment protocol
$ agent access
authAPI Key
onboardingFull — agent can self-onboard
tosExplicitly welcomes bots
webhooksNo
free tierYes
billingpay-per-token
#llm#gateway#routing#multi-model
https://openrouter.ai
// last verified 8/26/2026
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