notecardHQ
Needs sign-incom.notecardhq/notecardhqv1.0.0 Domain verified
Send real handwritten cards from an agent: a robot writes each with a real pen, then it is mailed.
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Try it
Call this server's tools from your browser. Nothing to install.
https://app.notecardhq.com/api/mcp
Bearer <notecardHQ API key>. Test keys (mos_test_...) never write, mail or bill a card.
Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.
Connect to load this server's tools.
Install
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http notecardhq https://app.notecardhq.com/api/mcp \ --header 'Authorization: Bearer YOUR_TOKEN'
Headers
Authorization(required): Bearer <notecardHQ API key>. Test keys (mos_test_...) never write, mail or bill a card.
Tools
We haven't seen a tool list from this server yet.