Official MCP RegistryListed
com.rattlesnakesbymail/rattlesnakesbymail
Dated, sourced claims about AI crawlers and agents, offered as MCP tools.
First seen 2 Oct 2026. Evidence as of 23 Oct 2026.
6
Tools
From an anonymous probe
1
Source listings
Each with its own history
3
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| ask | Match a free-text question against the claims published on Rattlesnakes By Mail, and return the matching claims, or no match when no published claim covers the question. Every question sent to ask is recorded, and a recorded question may be published on the public questions page at Rattlesnakes By Mail. Do not send private or identifying text to ask. | Changes data |
| get_snapshot | Return the daily snapshot of crawler activity on Rattlesnakes By Mail for one UTC date: dated facts, a table of crawler requests, context against each crawler's recent history, and links. Pass a six digit label such as 261101 or an ISO date such as 2026-11-01. The numbers come from one website and describe what these crawlers did here, not across the web. | Read-only |
| identify_user_agent | Match an unrecognized raw User-Agent header against the crawlers documented on Rattlesnakes By Mail, and return the matched crawler plus instructions for verifying the request. Use identify_user_agent when the crawler behind the User-Agent header is not yet known. | Read-only |
| list_changes | List recorded changes to claims on Rattlesnakes By Mail, newest first, with the change date and the affected crawler. Filter by date with since, by crawler with entity, or by both. Use list_changes to detect crawler policy updates published after a given date. | Read-only |
| lookup_crawler | Look up a documented crawler on Rattlesnakes By Mail by name, slug, or user-agent string, and return identity fields, current claims, publication dates, and evidence URLs. Use lookup_crawler when the crawler is already named, or when the user agent is already known to belong to a documented crawler. | Read-only |
| submit_note | Submit a correction or note about a claim, an entity, a question, or a daily snapshot on Rattlesnakes By Mail. Requires a client token issued out of band by the publisher. Every note is stored as pending, and an editor reviews every pending note before publication. | Changes data |
Change history
- submit_note: input schema changed (+target)
- submit_note: description changed (+"a question," +"daily snapshot" -"question")
- get_snapshot: tool added
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | com.rattlesnakesbymail/rattlesnakesbymail | 2 Oct 2026 | 23 Oct 2026 | 1 |