Rattlesnakes By Mail: AI Crawler Field Guide

Rattlesnakes By Mail is a public record of dated, sourced claims about AI crawlers and AI agents, including GPTBot, ClaudeBot, PerplexityBot, Googlebot, and Applebot. Each claim carries a verbatim quote from vendor documentation, a publication date, and an evidence URL. Five MCP tools cover crawler lookup, user agent identification, change history since a given date, free-text question matching against published claims, and token-gated correction notes.

First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.