The SpaceXSI REST API is compatible with the OpenAI REST API. This reference is generated from the OpenAPI specification and organised by resource.

Base URLs and authentication

API	Base URL	Authenticate with
Inference (responses, chat completions, images, videos, voice, files, batches, models)	`https://api.x.ai`	`Authorization: Bearer <API key>`
Collections management	`https://management-api.x.ai`	`Authorization: Bearer <Management API key>`
Collections search	`https://api.x.ai`	`Authorization: Bearer <API key>`
Management (API keys, teams, billing, audit)	`https://management-api.x.ai`	`Authorization: Bearer <Management API key>`

API keys are created on the API Keys page of the SpaceXSI Console. Management keys are created on the Management Keys page; see Using Management API.

Inference API

For status codes and their likely causes, see Debugging Errors.

Last updated: October 15, 2026