Rattlesnakesbymail is a remote MCP server that gives an AI agent 6 tools, among them ask, get_snapshot, identify_user_agent. It answers at https://rattlesnakesbymail.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 6 November 2026, succeeded.
Dated, sourced claims about AI crawlers and agents, offered as MCP tools.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
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 Inputs: question |
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 Inputs: date |
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 Inputs: user_agent |
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 Inputs: since, entity, limit |
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 us Inputs: name_or_ua |
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 Inputs: target_type, target_id, target, body, token |
Every block below points at https://rattlesnakesbymail.com/mcp. Pick your client and copy.
claude mcp add --transport http rattlesnakesbymail https://rattlesnakesbymail.com/mcp
{
"mcpServers": {
"rattlesnakesbymail": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://rattlesnakesbymail.com/mcp"]
}
}
}{
"mcpServers": {
"rattlesnakesbymail": {
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"servers": {
"rattlesnakesbymail": {
"type": "http",
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"context_servers": {
"rattlesnakesbymail": {
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"mcpServers": {
"rattlesnakesbymail": {
"serverUrl": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"mcpServers": {
"rattlesnakesbymail": {
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}name: Rattlesnakesbymail
version: 0.0.1
schema: v1
mcpServers:
- name: Rattlesnakesbymail
type: streamable-http
url: https://rattlesnakesbymail.com/mcp{
"mcpServers": {
"rattlesnakesbymail": {
"httpUrl": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"mcpServers": {
"rattlesnakesbymail": {
"type": "http",
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}{
"mcpServers": {
"rattlesnakesbymail": {
"url": "https://rattlesnakesbymail.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Frattlesnakesbymail.com%2Fmcp&type=streamable_http&id=rattlesnakesbymail&name=Rattlesnakesbymail
It answered our last check on 6 November 2026 in 129 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by rattlesnakesbymail.com and served from rattlesnakesbymail.com, the vendor's own domain: https://rattlesnakesbymail.com/mcp.
6, as returned by the server's own tools/list on 11 November 2026: ask, get_snapshot, identify_user_agent, list_changes, lookup_crawler, submit_note.
It answered our last check on 6 November 2026 in 129 ms. Over 4 checks since 23 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://rattlesnakesbymail.com/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.rattlesnakesbymail. Endpoint host: rattlesnakesbymail.com. ARD identifier: urn:air:com.rattlesnakesbymail:mcp:rattlesnakesbymail.
First indexed 20 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.