Unified endpoint
Use one OpenAI-compatible endpoint for chat completions, model lists, and common client apps.
API0HUB Documentation
API0HUB
Customer guide for the API0HUB AI API relay
Use these docs to create an account, top up, create API keys, configure Base URLs, choose models, and connect Claude Code, Codex, and compatible clients.
Keys and limits
Create separate API keys for projects, set limits, and inspect usage in Usage Logs.
Balance and billing
Check balance, usage, and the payment details support needs for troubleshooting.