The free LLM API model catalog

An endpoint that serves real model inference on a provider's permanent no-payment tier, metered by requests or tokens per minute and per day rather than by a credit balance. FreeLLMAPI is one: an open-source router you run on your own machine that puts every free tier in this catalog behind a single OpenAI-compatible endpoint. Routing costs nothing; the only thing sold is the optional Premium catalog feed.

It only calls each provider's own free tier, using keys you add yourself, so inference costs nothing and your keys never leave your machine. Premium ($19 a year or $49 once) keeps the model catalog live on your router; free installs pull the monthly snapshot, in which a model appears 30 days after it joins the live feed.

Not for FreeLLMAPI. Each provider issues its own free key, and most tiers in this catalog issue one without a card; each model page lists the limits and sign-up quirks of every provider that serves it.

Your router pulls a signed catalog twice a day, and a model we have removed or disabled leaves your router at the next sync. Between syncs, a provider that answers a request with an end-of-life error gets that model retired automatically, and the request fails over to the next model in your chain. Details: what happens when your free models get removed.

Yes. Point any OpenAI SDK at http://localhost:3001/v1 with your unified key. The router also speaks the Anthropic Messages surface and Gemini's native wire on /v1beta, and every response carries an X-Routed-Via header naming the provider and model that served it.