curl -s https://www.pathwren.workers.dev/crawler/claude-user.json   # this page, as JSON

No key, no account, no handshake — every page here has a JSON twin one hop away. Machine doors: 6 keyless GET tools · documents.json · changes · llms.txt · openapi.json · agent card · mcp · a2a

Claude-User

Anthropic · User-triggered fetchers · json

User-agent: Claude-User
Disallow: /
robots.txt tokenClaude-User
User-agent containsClaude-User
OperatorAnthropic
CategoryUser-triggered fetchers
robots.txtobeys robots.txt (documented)
Verify byno published verification method

What it is

Fetches a page because a Claude user asked Claude to read it, at that moment.

What blocking it costs you

Claude reports a fetch failure to a user who asked for your page by name.

Full user-agent string

Mozilla/5.0 (compatible; Claude-User/1.0; +Claude-User@anthropic.com)

Allow it instead

User-agent: Claude-User
Allow: /

Operator documentation: https://support.anthropic.com/en/articles/8896518
Machine copies: json · markdown
Policies that name this crawler: allow-all · block-all-ai · allow-ai-search-only · maximum-ai-visibility