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Stampcard — digital stamp cards for small shops, no app for the customer

by stampcard.rowb.app · remote · no sign-in to list tools · v1.0.0 · published by app.rowb.stampcard

Create a shop program, hand customers a browser stamp card by QR poster, stamp it from a phone.

Changes · 5
CompareRegistry entry

5 tools: 5 change things.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http cards https://stampcard.rowb.app/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Changes things 5Claude Code: ask
  • create_programCreate or update the shop program: shop name, reward text, stamps required before a reward.No findings

    Why it is in this group

    • The name "create_program" says "create": a word for a change.
    Description, as the server wrote it
    Create or update the shop program: shop name, reward text, stamps required before a reward. Returns the program and its join URL (the poster target).
  • get_cardRead one customer card: how many stamps, what the reward is, whether it is ready to redeem.No findings

    Why it is in this group

    • The name "get_card" says "get": a word for reading.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    Description, as the server wrote it
    Read one customer card: how many stamps, what the reward is, whether it is ready to redeem.
  • program_statsProgram plus this month stamp usage and quota, so a shop can tell how close it is to the free limit.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Program plus this month stamp usage and quota, so a shop can tell how close it is to the free limit.
  • redeemRedeem the reward on a card that has reached its required stamps.No findings

    Why it is in this group

    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    Description, as the server wrote it
    Redeem the reward on a card that has reached its required stamps. Resets the stamp count and increments the rewards-earned counter.
  • stampAdd one stamp to a customer card.No findings

    Why it is in this group

    • The description's first verb is "add": a word for a change.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    Description, as the server wrote it
    Add 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.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http cards https://stampcard.rowb.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__cards__create_program",
      "mcp__cards__stamp",
      "mcp__cards__get_card",
      "mcp__cards__redeem",
      "mcp__cards__program_stats"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as cards. Review it before you use it.