OpenToken

OpenToken is an OpenAI-compatible API gateway. Point your existing OpenAI SDK at OpenToken, keep your code, and route requests across providers with one API key, one request schema, and one billing ledger.

Start here

Quickstart

Swap base_url and key, then make your first call.

OpenAI compatibility

What works out of the box, and what differs.

Models

Registered models and the {provider}/{model} id format.

API reference

Endpoints, parameters, streaming, and errors.

Base URL

https://api.opentoken.kr/v1

Model ids use the {provider}/{model} format, for example google/gemini-3-flash.

Capabilities

Streaming

Server-Sent Events, with an optional final usage chunk.

Reasoning

Control thinking depth per request.

Prompt caching

Cache a system prefix at the cache-read rate.

Service tiers

Flex routing for latency-tolerant work.