APIMart

As an AI API platform, APIMart differs from single-provider services by putting more than 500 text, image, video and music models behind one key and one interface.

APIMart gives developers a single OpenAI-compatible endpoint, so code written for OpenAI-style requests can point at it without a rewrite.

The catalog includes chat models such as GPT-5 and Claude Sonnet 4.5, Sora 2 for video and Flux.1 for images.

The API supports streaming responses, function calling, JSON mode and vision input, with context windows up to 1M tokens on some models.

You keep one account instead of several provider accounts, and you switch models by changing the model name in your request.

APIMart advertises a 99.9% SLA and says its prices run up to 70% lower than competitors, but that figure is the company's own claim, so compare against your actual usage before relying on it.