Anthropic
Anthropic: Entity Summary
Anthropic PBC is an artificial intelligence company that operates automated clients — including the ClaudeBot crawler family — that are reported to sign their HTTP requests using Web Bot Auth.
Anthropic: Core Facts
- Operator
- Anthropic PBC
- Role
- Agent operator (crawler and assistant fetcher traffic)
- Signing status
- Reported in production per ecosystem documentation (Cloudflare signed-agents program)
- Public key directory
- Not reachable at /.well-known/http-message-signatures-directory (verified 2026-08-27)
- Verification path
- Via vendor bot directories (e.g. Cloudflare BotBase) until a public directory exists
A public key directory would allow any website operator to verify Anthropic request signatures independently of any vendor. This page is updated when that endpoint becomes reachable.
Anthropic: Classification Metadata
- Entity Class
- Agent Operator
- Last verified
Anthropic: Not Identical To
Anthropic the company is not identical to its individual crawlers (such as ClaudeBot or Claude-User), not identical to the Claude assistant products, and not identical to Amazon's Anthropic-related services. A request signature proves operator identity, not crawling permission.
Anthropic: FAQ
Does a ClaudeBot signature mean the request is allowed to crawl?
No. A signature proves identity, not permission. Crawling permission is governed by robots.txt and the operator's own policies.
Is Anthropic signing confirmed by Anthropic itself?
Public statements and ecosystem documentation report production signing; this page links the available references and is updated as primary sources become available.