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

by rowb-stampcard Your server? Claim it
answering

Stampcard — digital stamp cards for small shops, no app for the customer is answering right now. Last checked 4 min ago. It exposes 5 tools.

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

Uptime history 49 days of history · worst day 90%
49 days agonow
98.9%
Uptime 24h
91 of 92 checks
5
Tools
read from the server
650 ms
Response time
average over 24h
open, no key
Access
streamable-http

Stampcard — digital stamp cards for small shops, no app for the customer missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 4 min ago.

run in your terminal
claude mcp add cards --transport http https://stampcard.rowb.app/mcp
Settings → Connectors → Add custom connector, then paste this address
https://stampcard.rowb.app/mcp
~/.codex/config.toml
[mcp_servers.cards]
url = "https://stampcard.rowb.app/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "cards": {
      "url": "https://stampcard.rowb.app/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "cards": {
      "type": "http",
      "url": "https://stampcard.rowb.app/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

program
create_program
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).
program_stats
Program plus this month stamp usage and quota, so a shop can tell how close it is to the free limit.
card
get_card
Read one customer card: how many stamps, what the reward is, whether it is ready to redeem.
redeem
redeem
Redeem the reward on a card that has reached its required stamps. Resets the stamp count and increments the rewards-earned counter.
stamp
stamp
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.

Endpoints

URLTransportStateLatencyChecked
https://stampcard.rowb.app/mcp streamable-http answering 645 ms 4 min ago

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

Answers built from our own checks of this server.

What can Stampcard — digital stamp cards for small shops, no app for the customer do?
It exposes 5 tools, read directly from the server on our last check. Among them: create_program, get_card, program_stats, redeem, stamp. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Stampcard — digital stamp cards for small shops, no app for the customer working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 92 checks got a reply (98.9%), average response time 650 ms. The bar chart above shows every period we have measured.
How do I connect Stampcard — digital stamp cards for small shops, no app for the customer?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Stampcard — digital stamp cards for small shops, no app for the customer need an API key?
No. Stampcard — digital stamp cards for small shops, no app for the customer completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Stampcard — digital stamp cards for small shops, no app for the customer?
It answers our handshake in 650 ms on average, which is faster than 14% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.