meta-externalagent
Meta's crawler for use cases such as training foundation AI models or improving products by indexing content directly.
What happens if you block it
Meta-ExternalAgent stops fetching your content, including for training Meta's foundation models.
Our take
Block it to opt out of Meta AI training.
robots.txt
To block it:
User-agent: meta-externalagent Disallow: /
To allow it explicitly (useful when a wider rule blocks other bots):
User-agent: meta-externalagent Allow: /
The operator's own words
The Meta-ExternalAgent crawler crawls the web for use cases such as training foundation AI models or improving products by indexing content directly.Meta documentation, checked 2026-10-31
Other Meta agents
meta-webindexer
Meta
Meta's indexing crawler.
meta-externalfetcher
Meta
Fetches requested by Meta AI users, for example when a user shares a link.
Can meta-externalagent reach your site?
Free, no sign-up. We request your homepage as 13 different clients and show what each one gets.