X420.ai Docs

Quickstart

Buy credit, create a capped API key, and make your first call.

API Reference

Endpoint, parameters, headers, model selection, and error codes.

Model map

Public model IDs, upstream aliases, SDK values, and runtime status.

Billing

How API credits, reservations, and per-key caps work.

Privacy

Provider logging, data minimization, tenant keys, and upstream routing.

FAQ

Common questions answered.