DocumentationAPI ReferenceKnowledge Base
Auth

Authentication

auth endpoints of the Unison Brain API (v1).

unison-brain

The auth endpoints of the Unison Brain API. Every call needs Authorization: Bearer usk_... unless noted.

Unison Brain API (v1)

The raw HTTP API behind Unison - the SDK, CLI, and MCP server are all clients of it. Base URL https://brain.unisonlabs.ai, auth with a Bearer usk_ key, all paths under /v1.

POST /v1/auth/provision

Create a headless account for an email and return a usk_ key (no auth required). If the email has a pending invitation, joins that workspace instead of creating a new one.