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Tapwhich

R0· no sign-in

Which of your cards to tap at a place: the cashback, cap and conditions, from the banks' own pages.

v1.0.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality100new
Trust83of 100
Uptime, 30 days100%
Latency p50499 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "tapwhich": {
      "type": "http",
      "url": "https://tapwhich.openkrill.app/mcp"
    }
  }
}
claude mcp add --transport http tapwhich https://tapwhich.openkrill.app/mcp
[mcp_servers.tapwhich]
url = "https://tapwhich.openkrill.app/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tapwhich": {
      "type": "remote",
      "url": "https://tapwhich.openkrill.app/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "tapwhich": {
      "type": "http",
      "url": "https://tapwhich.openkrill.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=tapwhich&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vdGFwd2hpY2gub3BlbmtyaWxsLmFwcC9tY3AifQ%3D%3D"
}
{
  "servers": {
    "tapwhich": {
      "type": "http",
      "url": "https://tapwhich.openkrill.app/mcp"
    }
  }
}
{
  "mcpServers": {
    "tapwhich": {
      "httpUrl": "https://tapwhich.openkrill.app/mcp"
    }
  }
}
extensions:
  "tapwhich":
    enabled: true
    name: "tapwhich"
    type: streamable_http
    uri: "https://tapwhich.openkrill.app/mcp"
    timeout: 300

Quality 100 / 100new

protocol100 · weight 25
  • pass
    protocol.modernsupports 2026-07-28 (server/discover)
  • pass
    protocol.statelessanswers without a session
  • pass
    protocol.transportstreamable HTTP
  • pass
    protocol.list_ttltool list is cacheable (ttlMs 300000)
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations1 of 1 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 511 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 3 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

1 tools, about 511 tokens to load them all · tool set 17ca780848c9 · checked 2026-10-20 10:35 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-4d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://tapwhich.openkrill.app/mcp streamable-httpnoneyes100%499 ms2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-052026-10-20

Tools (1)

pick_cardread-onlyUse this when someone asks which of their credit or debit cards to pay with at a shop, app, category or city, to get the most cashback. Pass the place (a merchant such as Grab or Shopee, a category such as dining or supermarket, or a city such as Tokyo, or both: 'dining in Tokyo') and the cards they hold (names or ids). It answers in one line, 'use card X here, because Y, up to cap Z', with the second-best card, each card's cap and conditions, and the bank source link. The data pack covers Vietnam-issued cards; amounts are in VND.

Schemas: list_tools.

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Official server.json
{
  "name": "app.openkrill/tapwhich",
  "title": "Tapwhich",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://tapwhich.openkrill.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://tapwhich.openkrill.app/",
  "description": "Which of your cards to tap at a place: the cashback, cap and conditions, from the banks' own pages."
}