protogrid

Search / app.rowb.hk-transit/fares

HK Transit Cost — MTR fares and the government fare subsidy

R0· no sign-in

Hong Kong MTR fares and the government fare subsidy, computed and recorded.

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.
Quality79good
Trust82of 100
Uptime, 30 days99%
Latency p50610 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "fares": {
      "type": "http",
      "url": "https://hk-transit.rowb.app/mcp"
    }
  }
}
claude mcp add --transport http fares https://hk-transit.rowb.app/mcp
[mcp_servers.fares]
url = "https://hk-transit.rowb.app/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "fares": {
      "type": "remote",
      "url": "https://hk-transit.rowb.app/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "fares": {
      "type": "http",
      "url": "https://hk-transit.rowb.app/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=fares&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vaGstdHJhbnNpdC5yb3diLmFwcC9tY3AifQ%3D%3D"
}
{
  "servers": {
    "fares": {
      "type": "http",
      "url": "https://hk-transit.rowb.app/mcp"
    }
  }
}
{
  "mcpServers": {
    "fares": {
      "httpUrl": "https://hk-transit.rowb.app/mcp"
    }
  }
}
extensions:
  "fares":
    enabled: true
    name: "fares"
    type: streamable_http
    uri: "https://hk-transit.rowb.app/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
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 hygiene71 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • fail
    tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: monthly_summary (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); mtr_fare (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); subsidy_amount (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
  • pass
    tools.token_costabout 703 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 703 tokens to load them all · tool set 4c4ba7317a06 · checked 2026-10-20 17:02 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 82 / 100

no-repository
provenance55
liveness99
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-99% +updated-17d-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://hk-transit.rowb.app/mcp streamable-httpnoneyes99%610 ms2025-06-182026-10-20

Tools (4)

log_tripRecord one public transport trip (date, from, to, fare, mode, which account paid) so it counts towards a monthly total and the subsidy estimate. Writes to your own ledger; a bearer API key is required and the call counts against the same monthly allowance as the REST endpoint.
monthly_summaryTotals for one month from the trips you recorded: trip count, total fare, breakdown by mode and by payment account, and the subsidy estimate computed separately for the Octopus and AlipayHK accounts. Requires a bearer API key.
mtr_fareLook up the published MTR fare between two stations in Hong Kong, by station name or MTR station id. Returns the Octopus adult/student/JoyYou-sixty/child/elderly/PWD fares and the single-journey adult fare in HKD, with the open-data source URL. Deterministic: same input, same answer. Read-only. No key required.
subsidy_amountCompute the Hong Kong Public Transport Fare Subsidy Scheme amount for one month, from the expenses recorded under an Octopus account and an AlipayHK account. Rule taken verbatim from the Government page: one-third of the monthly public transport expenses in excess of a $500 threshold, capped at $400 per month per account; the two accounts are never combined. Returns both the truncated whole-dollar figure and the exact one-third figure. Deterministic arithmetic only. Read-only. No key required.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "app.rowb.hk-transit/fares",
  "title": "HK Transit Cost — MTR fares and the government fare subsidy",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://hk-transit.rowb.app/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://hk-transit.rowb.app",
  "description": "Hong Kong MTR fares and the government fare subsidy, computed and recorded."
}