ApexApi
One API for every AI model. Built for apps and agents.
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ApexApi - One API for every AI model. Built for apps and agents.

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One OpenAI-compatible API for 138 models from 21 makers: OpenAI, Anthropic, Google, Mistral, DeepSeek, ByteDance and more. Text, image, video and audio with a single key. Point your existing code at our base URL and it works, including Cursor and any OpenAI SDK client. Pay per call with credits, no subscription, no minimums. Smart routing picks the best provider and fails over automatically when one is down. Per-key spend limits and a live cost dashboard included.

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Maker
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Hey Product Hunt! I'm Nemanja, maker of ApexApi. I was building AI products and kept hitting the same wall: every provider wants its own account, its own key, its own SDK, its own billing. Adding a new model meant another integration. Comparing models meant rewriting code. So I built one gateway. You point the OpenAI SDK at our base URL, and one key gets you 138 models from 21 makers, for text, images, video and audio. Credits are pay per call, no subscription. If a provider goes down, routing fails over automatically. It has been live in production since June, with real paying usage. Works as a drop-in in Cursor and any OpenAI-compatible client, plus an MCP server so agents can use it directly. Would love your feedback, especially on which models or providers you want next. I'll be here all day answering questions.
OpenAI
OpenAI Day
How did GPT-5.6 change the ambition or scope of what you shipped?
Maker
GPT-5.6 changed the scope in two ways, because ApexApi is both built with it and serves it. As a solo founder, GPT-5.6 is effectively my senior engineering team. I used it to run full reviews of the platform's infrastructure: security audits of the billing and credit ledger, routing and failover logic across 15+ providers, and hardening of the API gateway before launch. Work that would normally need a team of reviewers, I shipped alone with confidence. That is what let a one-person company put a production API gateway live with Stripe billing, org accounts, spend guardrails and PII scanning. On the product side, GPT-5.6 raised the bar for what our customers expect. ApexApi's whole point is that when a new frontier model ships, our users get it by changing one string, no new account, no new SDK. GPT-5.6 is live in our catalog next to 138 models from 21 makers, and the demand it created for mixing frontier reasoning with cheaper models in the same app is exactly the routing problem we