Fortytwo API

The Fortytwo API is compatible with the OpenAI Chat Completions API. It has two endpoints:

Endpoint	Purpose
`GET /v1/models`	List the model IDs available to your key
`POST /v1/chat/completions`	Generate a response

Base URL: https://api.fortytwo.network/v1. Every request needs an API key.

curl https://api.fortytwo.network/v1/models \
  -H "Authorization: Bearer $FORTYTWO_API_KEY"

Get access

Create an API key and send it with each request.

Create a key and send the first request.

Model IDs, limits and supported features.

Prices per model and what is billed.

Fields and responses of both endpoints.

Last modified on October 3, 2026