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Claude-User

Anthropic's real-time web agent for when Claude users browse live content.

Operated by AnthropicOfficial docs

What is Claude-User?

Claude-User is the user-agent used when Anthropic's Claude AI assistant accesses the web in real-time on behalf of a user. This happens when Claude users enable web search or ask Claude to visit a specific URL during a conversation.

Unlike ClaudeBot which crawls broadly for training data, Claude-User visits are triggered by specific user requests, making each visit a signal of genuine user interest in your content. The agent fetches page content, which Claude then summarizes and presents with citations.

Claude-User is a relatively low-volume crawler since it only activates during live conversations, but each visit represents high-intent engagement. Managing this agent properly ensures your content is accessible when Claude users seek it out.

User-Agent Strings

These are the known user-agent patterns used by Claude-User. Use them to identify this crawler in your server logs or configure robots.txt rules.

Claude-User

robots.txt example:

User-agent: Claude-User
Disallow: /private/
Allow: /

How to Manage Claude-User

1

Allow Claude-User to enable real-time Claude conversations about your content.

2

Use Switch to differentiate Claude-User (browsing) from ClaudeBot (training).

3

Serve structured markdown content for better summarization quality.

4

Track visits to understand what content Claude users are interested in.

How to block Claude-User

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