High-performance LLM API by Mistral AI including Mistral and Mixtral models, with a free tier.
Mistral AI API is a free Machine Learning API that requires apiKey authentication, is served over HTTPS and supports CORS, so it can be called from the browser.
Welcome to Mistral AI's Api Reference
Details from docs.mistral.ai.

Unified API suite · now live
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NLP API using spaCy and transformers for NER, sentiments, classification, summarization, and more
Yes. The Mistral AI API is listed in the Machine Learning category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The Mistral AI API uses apiKey authentication, so you need to register for credentials before making requests.
Yes. The Mistral AI API supports CORS, so front-end JavaScript can call it directly.
Yes. The Mistral AI API is served over HTTPS, so it's safe to use in production.