# stillworks

> Free LLM API endpoints, re-tested every hour by real calls. A registry of free and free-tier LLM API endpoints. Every row is a real chat call made from our server, published with the time it was measured. Keyless endpoints (no API key, no signup) are listed first.

## Ask what works right now (JSON, no key, CORS open)

- [GET https://stillworks.supercapybara.com/api/llm/up](https://stillworks.supercapybara.com/api/llm/up): keyless models that answered recently, ranked; `models[0]` is the pick.
- [GET https://stillworks.supercapybara.com/api/llm/up?key=any](https://stillworks.supercapybara.com/api/llm/up?key=any): the same, plus free-tier providers that need your own key.
- [GET https://stillworks.supercapybara.com/api/llm/up?feature=tools,vision](https://stillworks.supercapybara.com/api/llm/up?feature=tools,vision): only models a real call proved can do those things. Features: tools, json_schema, json_object, vision, image_out.
- [GET https://stillworks.supercapybara.com/api/llm/up?format=env](https://stillworks.supercapybara.com/api/llm/up?format=env): three lines, `OPENAI_BASE_URL`, `OPENAI_API_KEY`, `OPENAI_MODEL`.

The same response carries a separate top-level `sponsored` field: null, or one labelled paid placement. It is never inside `models` and never changes their order, so `models[0]` is still the pick. See https://stillworks.supercapybara.com/sponsor.

## Pages

- [Free LLM API list, live-tested](https://stillworks.supercapybara.com/)
- [Free LLM API with no API key](https://stillworks.supercapybara.com/free-llm-api-no-key)
- [Free LLM API resources list alternative](https://stillworks.supercapybara.com/free-llm-api-resources-alternatives)
- [Free LLM API for agents: /api/llm/up reference](https://stillworks.supercapybara.com/docs)
- [Sponsor the slot](https://stillworks.supercapybara.com/sponsor)

## Providers (one page each, with track record and probe log)

- [free-ai](https://stillworks.supercapybara.com/llm/free-ai)
- [groq](https://stillworks.supercapybara.com/llm/groq)
- [kilo-gateway](https://stillworks.supercapybara.com/llm/kilo-gateway)
- [llm7](https://stillworks.supercapybara.com/llm/llm7)
- [mistral](https://stillworks.supercapybara.com/llm/mistral)
- [mlvoca](https://stillworks.supercapybara.com/llm/mlvoca)
- [openrouter](https://stillworks.supercapybara.com/llm/openrouter)
- [ovh-anonymous](https://stillworks.supercapybara.com/llm/ovh-anonymous)
- [pollinations](https://stillworks.supercapybara.com/llm/pollinations)
- [uncloseai](https://stillworks.supercapybara.com/llm/uncloseai)

## Caveats

Keyless quotas are usually per IP: an endpoint verified from our address can still answer 402 or 429 from yours. These are other people's free services and can add a key requirement or disappear between two probes.