APIMaster

APIMaster does one thing exceptionally well: it finds and verifies the world's cheapest authentic AI API providers. Every provider is fingerprint-tested on a weekly basis to confirm you're getting the real model — never a fake or quietly substituted one. Only verified providers make it into the aggregation, so you can save up to 90% off official OpenAI, Claude, and DeepSeek pricing without the usual risk of unreliable resellers.

It works as a trusted alternative to OpenRouter, Together AI, and other API aggregators, with one key difference: every single provider is verified. Instead of wondering whether a cheap endpoint is genuine, you get transparency backed by continuous testing — so low cost no longer has to mean low trust.

Getting started is simple. Sign up at apimaster.ai, top up your balance, and create an API key — APIMaster automatically routes each of your requests to the cheapest verified provider at that moment. Then just swap your base_url: it's a one-line change and works out of the box with Cursor, Claude Code, Codex, LiteLLM, LangChain, and any OpenAI SDK.

Core features include weekly fingerprint verification that tests model authenticity on every provider, aggregation of the globally cheapest providers with up to 90% off official list prices, and a single API key that covers all major models: GPT, Claude, DeepSeek, and Gemini.

Everything is fully OpenAI-compatible, so zero code changes are needed. Detection results are published publicly, giving you complete transparency on provider scores. Billing is pay-as-you-go starting from just $1, with support for PayPal, USDT, and ePay — making it easy to try the service before committing to any larger spend.