Ask Signal questions in ChatGPT and Claude

Add Signal by StackEnhance to ChatGPT or Claude and ask how often a brand emails and what it sent recently, free and without an account.

Signal by StackEnhance is a free, read-only connector (an MCP server) that lets an AI assistant look up how often brands send marketing email. It answers from the same public archive as the brand pages on stackenhance.com: 750+ online stores, mostly in Sweden, Norway, Denmark, Finland and Germany. No account or API key is needed, and it is not connected to your workspace.

The connector URL

https://mcp.stackenhance.com/mcp

Authentication: none. Transport: Streamable HTTP.

Add it to Claude

The easiest way: open Signal by StackEnhance in Claude's directory and click Connect — or in Claude go to Settings → Connectors → Browse connectors and search for Signal by StackEnhance.

Or add it by hand: Settings → Connectors → Add custom connector, name it Signal by StackEnhance, paste the URL above and leave the OAuth fields empty.

Add it to ChatGPT

  1. Open Settings → Apps & Connectors → Advanced and turn on Developer mode.
  2. Choose Create.
  3. Name: Signal by StackEnhance. URL: the connector URL above. Authentication: None.
  4. Start a new chat and turn the connector on from the + menu.

Questions it can answer

  • How often does IKEA email its customers?
  • What did Newport send last week?
  • Which brands email most in Swedish e-commerce?

For a period of up to a month it lists the days a brand sent and can quote up to two subject lines that are already public on the brand's page. Everything else stays in Signal. It never returns open, click or revenue data — Signal has none.

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