AI crawlers / MistralAI-User
MistralAI-User: what it is and how to block or charge it
MistralAI-User is run by Mistral AI. Fetches a page when a user of Mistral's Le Chat assistant needs it.
| Operator | Mistral AI |
|---|---|
| Purpose | Fetches pages live when a user asks |
| User-agent contains | MistralAI-User |
| Official IP list | None published, so it can only be recognized by name. Which crawlers publish one |
Block MistralAI-User in robots.txt
User-agent: MistralAI-User
Disallow: /robots.txt is a request, not a lock: well-behaved crawlers follow it. To block by user agent at the server, match MistralAI-User in the User-Agent header.
Or charge MistralAI-User per page
Instead of blocking it, answer MistralAI-User with HTTP 402 Payment Required and a price. Crawlers and agents that support x402 pay a fraction of a cent in USDC straight to your wallet and get the page; people and search engines browse free. Set it up free on pay-per-crawl in about five minutes.
Is MistralAI-User reading your site?
See the full list of AI crawlers. Facts here follow each operator's own documentation; tell us if one changes.