MCP server

Rattlesnakesbymail Official

com.rattlesnakesbymail/rattlesnakesbymail

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

Dated, sourced claims about AI crawlers and agents, offered as MCP tools.

Website

At a glance

Type

MCP server

Publisher

rattlesnakesbymail.com (verified by the MCP Registry)

Status

Working at last check

Tools

6

Token cost

About 1,069 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

28 Oct 2026, 09:03 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http rattlesnakesbymail https://rattlesnakesbymail.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.rattlesnakesbymail]
url = "https://rattlesnakesbymail.com/mcp"

Gemini CLI

{"mcpServers":{"rattlesnakesbymail":{"httpUrl":"https://rattlesnakesbymail.com/mcp"}}}

Cursor

{"mcpServers":{"rattlesnakesbymail":{"url":"https://rattlesnakesbymail.com/mcp"}}}

VS Code

{"servers":{"rattlesnakesbymail":{"type":"http","url":"https://rattlesnakesbymail.com/mcp"}}}

Antigravity

agy mcp add rattlesnakesbymail https://rattlesnakesbymail.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"rattlesnakesbymail","server_url":"https://rattlesnakesbymail.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"rattlesnakesbymail","server_url":"https://rattlesnakesbymail.com/mcp"}

Tools

• ask ~159 tokens
  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 M
• get_snapshot ~161 tokens
  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 d
• identify_user_agent ~133 tokens
  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.
• list_changes ~182 tokens
  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.
• lookup_crawler ~147 tokens
  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.
• submit_note ~287 tokens
  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.

Browse

• Web scraping

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