# Fair Fare

> What a taxi, Uber or Lyft should cost, airport pickup rules, and overcharge checks.

- name: io.github.GoodTurnStudio/fairfare
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 89/100 flags: duplicate-repo
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.GoodTurnStudio%2Ffairfare
- tools: https://api.protogrid.dev/v1/servers/io.github.GoodTurnStudio%2Ffairfare/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "fairfare": {
      "type": "http",
      "url": "https://goodturn-mcp.pages.dev/fairfare/mcp"
    }
  }
}
```


## Trust

- hygiene: 60
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% +updated-16d-ago -duplicate-repo(28 names)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 8 of 8 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,568 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 8, about 1,568 tokens to load them all
- tool set hash: 25c1283e9dc9b672dfcf5ba5050f3477
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.GoodTurnStudio/fairfare.svg)](https://protogrid.dev/servers/io.github.GoodTurnStudio/fairfare)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://goodturn-mcp.pages.dev/fairfare/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (8)

- `best_time_to_ride`: Cheapest time of day to take a ride. For New York, typical Uber and Lyft prices for a trip of a given length at every hour of the week, from the city's trip records, with the cheapest and most expensive hours today and whether waiting saves money. For other cities, how the taxi meter rates change by time of day.
- `check_driver_licence`: Check a New York taxi or ride-app driver's licence. Whether a TLC licence number is active on New York City's daily open data for for-hire (Uber, Lyft, car service) and taxi drivers, its expiry date, and, if a name is given, whether it matches (the name on the licence is never returned). Other cities get the official way to check.
- `check_fare`: Was I overcharged? Check a fare that was paid. Compares what was paid with the official meter tariff, the airport flat fare or New York's typical Uber and Lyft prices for the same trip and hour, gives a verdict (fair, high or overcharged), the next steps for that company or city regulator, and a short message to send asking for a refund.
- `check_fleet_file`: Check a cab firm's fleet.json. Reads a taxi or minicab firm's fleet.json (the open format at fairfare.pages.dev/fleet that lets assistants find and book local firms directly) and lists anything to fix.
- `estimate_fare`: What a trip should cost by taxi, Uber or Lyft. Distance and time by road between two places, the licensed taxi meter fare with the extras that apply at that hour, any airport flat fare, typical Uber and Lyft prices in New York, airport pickup rules, a pre-booked transfer option for airport trips, and links that open Uber, Lyft or public transport directions with the trip filled in.
- `get_airport`: Getting a ride at an airport. Where Uber and Lyft pick up, how the taxi rank works, flat taxi fares, drop-off and pickup charges for cars, meet and greet rules, public transport into the city with prices, and tips, from each airport's own pages.
- `get_taxi_tariff`: A city's official taxi meter tariff. The starting charge, the rate per mile or kilometre, the waiting rate, time-of-day tariffs, extras and surcharges, flat fares, tipping custom and the official source.
- `list_cities`: Cities and airports covered. Every city whose official taxi tariff is on file and every airport with ground transport facts.