Stampcard — digital stamp cards for small shops, no app for the customer
Create a shop program, hand customers a browser stamp card by QR poster, stamp it from a phone.
Connect Remote server
claude mcp add --transport http cards https://stampcard.rowb.app/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
{
"mcpServers": {
"cards": {
"url": "https://stampcard.rowb.app/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
{
"servers": {
"cards": {
"type": "http",
"url": "https://stampcard.rowb.app/mcp",
"headers": {
"Authorization": "Bearer <YOUR_API_KEY>"
}
}
}
}
Settings > Connectors > Add custom connector
URL: https://stampcard.rowb.app/mcp
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools 5 found in our last check
create_programCreate or update the shop program: shop name, reward text, stamps required before a reward. Returns the program and its join URL (the poster target).
stampAdd one stamp to a customer card. Identify the card by its 8-character code (from the customer page) or by its token. One stamp per card per day unless allow_multiple is true.
get_cardRead one customer card: how many stamps, what the reward is, whether it is ready to redeem.
redeemRedeem the reward on a card that has reached its required stamps. Resets the stamp count and increments the rewards-earned counter.
program_statsProgram plus this month stamp usage and quota, so a shop can tell how close it is to the free limit.
Headers
| Name | Description |
|---|---|
AuthorizationOptional, secret | Bearer shop API key from /signup. Free tier stamps from a phone without a key; the key is needed to call these tools. |
Details
| Endpoint | https://stampcard.rowb.app/mcp (Streamable HTTP) |
| First published | 23 Sep 2026 |
| Last updated | 23 Sep 2026 |
| Registry name | app.rowb.stampcard/cards |
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