Claude-SearchBot
Builds the Claude search index — the corpus Claude consults when a user asks a question with the web-search tool enabled. The Anthropic equivalent of OAI-SearchBot.
Specs
| Vendor | Anthropic |
| Category | SEARCH |
| robots.txt token | Claude-SearchBot |
| Renders JavaScript | HTTP only |
| Honors robots.txt | yes |
| Reverse-DNS pattern | *.anthropic.com |
| IP-range source | https://claude.com/crawling/bots.json |
User-Agent string
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Claude-SearchBot/1.0; +https://anthropic.com/claude-searchbot)Considerations
- Newer than ClaudeBot. Some older robots.txt files only block the training token and leave Claude-SearchBot unconfigured (which means it can index, often the desired outcome for visibility).
- HTTP-only — same SSR caveat as for GPTBot and OAI-SearchBot.
robots.txt recipe
User-agent: Claude-SearchBot
Allow: /
Sources: Anthropic · Crawler FAQ