Integrations

Send a card from the tools you already use.

Every integration calls the same API, with idempotency keys so a retry never mails twice and test keys so you can build without sending real cards.

Send a card from any of thousands of apps with a Webhooks by Zapier step. A native notecardHQ app is coming.

Thank customers after a Checkout payment with a webhook handler and one API call.

Send a card for new orders or first-time customers from the orders/create webhook.

Send a card from a workflow with a custom code action, on Data Hub Professional or Enterprise.

Call a small Apex action from a record-triggered flow, with your key in a Named Credential.

Add a webhook action to a flow; a relay step in n8n or Zapier adds the Idempotency-Key.

Send won deals from an automation's webhook action through a relay step in n8n or Zapier.

Call the API straight from a workflow's Send HTTP request block.

Add an HTTP Request node to any workflow; retries never send twice.

Use the HTTP Make a request module in any scenario.

Connect Claude or any MCP client to send and track cards with send_note and get_note.

One REST call from curl, Node.js, Python or PHP, with an OpenAPI spec for SDK generators.

Connect your first trigger.

Start free with a test key, wire up the integration, then switch to live.