Rattlewatch MCP Server

by veritylabsai Your server? Claim it

answering

Rattlewatch is answering right now. Last checked 3 min ago. It exposes 4 tools. Last commit 21 Sep 2026.

Cited US recall lookup for AI agents: CPSC and FDA data, nothing invented.

Uptime history 16 hours of history

16 hours agonow

100.0%

Uptime 24h

57 of 57 checks

Tools

read from the server

530 ms

Response time

average over 24h

Stars

last commit 21 Sep 2026

Nothing serious here today

Today is the operative word: we check Rattlewatch every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add rattlewatch --transport http https://rattlewatch.rattled.ca/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "rattlewatch": {
      "url": "https://rattlewatch.rattled.ca/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.rattlewatch]
url = "https://rattlewatch.rattled.ca/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "rattlewatch": {
      "url": "https://rattlewatch.rattled.ca/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "rattlewatch": {
      "url": "https://rattlewatch.rattled.ca/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

changes

list_changes

List recall and requirement changes since an ISO-8601 timestamp (e.g. '2026-09-01T00:00:00+00:00'). Includes newly published recalls and rule changes, each with its source URL.

recalls

search_recalls

Search official US recall records by product name, brand, model, or UPC. Covers CPSC consumer products and FDA food, drug and device enforcement. Returns only cited records from the store, each with a source URL and a match score. If nothing matches, returns an empty list rather than guessing.

requirement

get_requirement

Get cited market-entry requirements for a product subject in a given market (e.g. subject='childrens_products', market='US'). This is a small curated set, not a full regulatory database: CPC, CPSC eFiling, EU GPSR, CE marking, REACH SVHC, RoHS and California Prop 65. Returns each fact with its official citation URL and last-verified date.

verify

verify

Check a claim or product query against the store. Returns only cited records (recalls and requirements) that match. Explicitly reports 'no verified record' when nothing matches -- it never synthesizes an answer, so absence means 'not in the store', not a negative claim.

Endpoints

URL	Transport	State	Latency	Checked
https://rattlewatch.rattled.ca/mcp	streamable-http	answering	536 ms	3 min ago

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Rattlewatch — questions

Answers built from our own checks of this server.

What can Rattlewatch do?

It exposes 4 tools, read directly from the server on our last check. Among them: get_requirement, list_changes, search_recalls, verify. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Rattlewatch working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 57 of 57 checks got a reply (100.0%), average response time 530 ms. The bar chart above shows every period we have measured.

How do I connect Rattlewatch?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Rattlewatch need an API key?

No. Rattlewatch completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Rattlewatch?

It answers our handshake in 530 ms on average, which is faster than 29% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Rattlewatch open source?

Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.