MistralAI-Index

Indexes content for Mistral search behind Vibe answers; not used for generative AI training.

MistralAI-Index is operated by Mistral AI and classified here as answer index. These agents build the index an answer engine queries at question time. Disallowing one removes the site from those answers and from the citations that link back to it. Training is governed by separate tokens, so this is the expensive block, not the protective one.

Disallowing mistralai-index removes the site from the index Mistral AI's AI products queries when it answers a question. The engine can then neither quote nor link the page, which is a traffic decision rather than a licensing one. Model training is governed by separate tokens.

robots.txt token

mistralai-index

Operator

Mistral AI

Purpose

Answer index

Honors robots.txt

yes

Documentation

https://docs.mistral.ai/robots/

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MistralAI-Index/1.0; +https://docs.mistral.ai/robots)

curl -A 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MistralAI-Index/1.0; +https://docs.mistral.ai/robots)' https://example.com/

Replace the host with your own. A 403, a challenge page or an empty body means the edge is blocking the agent whatever robots.txt says.

Mistral AI runs 3 agents in this registry, and they do different jobs. Blocking one says nothing about the others.

Does blocking MistralAI-Index remove me from Mistral AI's AI products?

Yes, in effect. MistralAI-Index builds the index Mistral AI's AI products reads at question time, so disallowing it takes the site out of those answers and out of the citations that link back to it. This is the block that costs traffic.

How do I verify MistralAI-Index requests are genuine?

Mistral AI publishes neither reverse DNS names nor address ranges for MistralAI-Index, so a request carrying this user agent cannot be authenticated. The string is trivially spoofed and is routinely reused by unrelated scrapers. Treat it as a hint, rate-limit by source address, and do not grant it access you would not grant an anonymous client.

See whether your robots.txt admits MistralAI-Index today, and whether your edge agrees with it.