curl -s https://www.pathwren.workers.dev/crawler/meta-externalfetcher.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
Meta · User-triggered fetchers · json
User-agent: meta-externalfetcher Disallow: /
| robots.txt token | meta-externalfetcher |
| User-agent contains | meta-externalfetcher |
| Operator | Meta |
| Category | User-triggered fetchers |
| robots.txt | obeys robots.txt (documented) |
| Verify by | no published verification method |
Fetches a page when a Meta AI user asks about a specific link.
Meta AI cannot read pages users hand it.
meta-externalfetcher/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)
User-agent: meta-externalfetcher Allow: /
Operator documentation: https://developers.facebook.com/docs/sharing/webmasters/web-crawlers
Machine copies: json ·
markdown
Policies that name this crawler:
allow-all · block-all-ai · allow-ai-search-only · maximum-ai-visibility