getting-started
title: Getting Started — OpenAI API Key & First Request Guide description: How to get started with APIMaster.ai: buy an OpenAI-compatible API key, set up authentication, and make your first request. Access GPT-5.4, Claude, and DeepSeek at up to 70% off official pricing.
Introduction
APIMaster.ai is an LLM API aggregation gateway: it routes requests to backend channels while speaking OpenAI- and Anthropic-compatible protocols. The marketplace shows per-channel pricing, uptime, and verification history where available.
What you can do
- Call models — Use the OpenAI SDK,
curl, Claude Code, Cursor, etc., withbase_urlset tohttps://apimaster.ai/v1. - Compare channels — The same model id (e.g.
claude-sonnet-4-6) may appear as multiple channel cards with different INPUT/OUTPUT rates. - Use verification as a signal — Run a one-off check on any compatible endpoint from Detect, or review historical bars on the marketplace.
Links
| Resource | URL |
|---|---|
| Website | https://apimaster.ai |
| Marketplace | https://apimaster.ai/ |
| Console | https://apimaster.ai/console/dashboard |
| Detect | https://apimaster.ai/ai-api-model-tester |