impossibl gateway - impossibl

Call models from OpenAI, Anthropic, Google, xAI, and other creators with one API key. Your app can run anywhere. Choose a model, send a request, and see its cost in the console.

Make your first request

Get a key and a response with cURL, Python, or TypeScript.

Connect your app

Configure your SDK, framework, or coding tool.

The essentials

Setting	Value
OpenAI-compatible base URL	`https://api.impossibl.com/v1`
Authentication	`Authorization: Bearer $IMPOSSIBL_API_KEY`
Model	A full ID from the model catalog, such as `openai/gpt-4o-mini`
Usage and billing	The workspace that owns your API key

Usage draws from prepaid credits at the model’s published rates. Credit purchases add a 5% platform fee, plus applicable tax. You can also bring your own provider keys. See billing for details.

What are you building?

Task	Guide
Text or chat	Quickstart · Streaming · Tools
Images	Understand an image · Generate an image
Audio or video	Transcribe · Generate speech · Understand audio or video
Search	Embeddings · Reranking
Decisions	Evaluation

Already have an integration? Migrate an app and check API compatibility. The current gateway still uses /v1; you do not need a /v2 URL. Agents can use the agent quickstart and machine-readable API guide.