Onlist Documentation
Onlist exposes an OpenAI-compatible API. Use any OpenAI SDK, change the base URL, and you are ready to go.
QuickstartMake your first API request in under 5 minutes.Migrate from OpenRouterSwitch from OpenRouter in two lines of code.Tool ConfigurationSet up Claude Code, Cursor, and other AI tools.ErrorsError envelope format and complete error code table.
Core Concepts
ModelsModel ID format, listing, and auto-routing.Provider RoutingSelect and configure upstream providers.StreamingSSE streaming format and usage reporting.Privacy & DataData handling and provider privacy attestations.
API Reference
ErrorsError envelope format and complete error code table.Rate Limits & HeadersX-Onlist headers, rate limiting, and retry behavior.Usage & CostToken counting, cost calculation, and billing.