Documentation

APIOnion Developer Docs

Everything you need to integrate APIs faster: auth, endpoints, examples, limits, and support channels.

Authentication

Use your API key with Bearer auth on every request.

Header: Authorization: Bearer YOUR_API_KEY
Never expose secret keys in frontend code
Rotate keys from Dashboard > API Keys

Rate Limits

Each plan has request limits and burst controls.

Free: 10 req/sec
Starter: 100 req/sec
Pro/Enterprise: custom limits

SDK & Examples

Quick starts for JavaScript, Python, PHP, and cURL.

Copy-ready request snippets
Error handling examples
Pagination and webhooks setup

Need integration help?

Contact APIOnion directly for onboarding, troubleshooting, or enterprise integration support.

WhatsApp: +44 7402 440753 Add me as a contact on WhatsApp Telegram: t.me/Apionionagency Gmail: apionionagency@gmail.com Gmail: numericfida786@gmail.com