Baseline Labs wiki / Bot
anthropic-ai
Bot in AI search and SEO
Stub
An older Anthropic token that predates the current ClaudeBot naming. Sites still declare it in robots.txt as a belt-and-braces training opt-out, and it occasionally appears in logs from older tooling. Treat it as a legacy alias of the ClaudeBot family.
Verification
Operator documentation: https://support.claude.com/en/articles/8896518
A user agent is a claim, not a proof: any client can send any name. Where an operator publishes IP ranges, a reverse lookup is the only way to tell a real visit from an impersonation.
Seen by Baseline
Requests, 30 days
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Last 7 days
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First seen
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Last seen
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Requests from this bot across sites tracked by Baseline, last 30 days. Aggregated over - sites, never reported per site.
Last updated 2026-09-04. Written and maintained by Baseline Labs.
