Koskamo

Good Turn Studio Fair Fare MCP

Fair Fare MCP provides tools to estimate taxi, Uber, and Lyft fares, check for overcharges, find the cheapest time to ride, retrieve airport pickup rules, and verify official taxi tariffs and driver licenses.

Endpoint and access

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Good Turn Studio Fair Fare MCP logo, by Good Turn StudioCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by Good Turn Studio
MCP endpoint (Streamable HTTP)
https://goodturn-mcp.pages.dev/fairfare/mcp
Vendor documentation

What its tools do

8 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

8 of 8 have a description · 8 of 8 declare behavior hints · 7 of 7 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Estimate what a trip should cost by taxi, Uber, or Lyft
  • Check if a paid fare was overcharged against official tariffs
  • Find the cheapest time of day to take a ride in New York
  • Retrieve airport pickup rules and flat fares for 36 airports

Source and maintenance

Community listingRegistry 1.0.0
Maintenance checked

Protocol and capabilities

Server
goodturn-fairfare 1.0.0
MCP protocol negotiated in check
2025-11-25
Tools
8 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Fair Fare is a neutral fare check for taxis, ride apps and airport transfers in the US, Canada and the UK. It works out what a licensed taxi meter should charge from each city's official tariff (24 cities), what Uber and Lyft typically charge in New York from the city's own trip records (21.6 million trips), the cheapest time to ride, airport pickup rules, drop-off charges and flat fares (36 airports), whether a fare paid looks fair, with the next steps and a ready message if not, and whether a New York driver's licence is active. Every answer has a say field with a ready-made summary. Every tool is read-only and nothing about the user is stored. Where an answer has a "say" field, it is a ready-to-read summary. More at https://fairfare.pages.dev

Tools

8 advertised

estimate_fare — What a trip should cost by taxi, Uber or Lyft
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

estimate_fare input schema
{
  "type": "object",
  "required": [
    "from",
    "to"
  ],
  "properties": {
    "to": {
      "type": "string",
      "description": "Where the trip ends, in the same forms as from."
    },
    "city": {
      "type": "string",
      "description": "Optional tariff city id from list_cities, when the place names are ambiguous."
    },
    "from": {
      "type": "string",
      "description": "Where the trip starts: an address, landmark, postcode, airport code (JFK, LHR) or lat,lon."
    },
    "when": {
      "type": "string",
      "description": "When the trip starts, in local time: now (the default), a time like 18:30 or 6pm, or a date and time like 2026-10-09T18:30."
    }
  },
  "additionalProperties": false
}
estimate_fare annotations
{
  "title": "What a trip should cost by taxi, Uber or Lyft",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
check_fare — Was I overcharged? Check a fare that was paid
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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_fare input schema
{
  "type": "object",
  "required": [
    "paid"
  ],
  "properties": {
    "to": {
      "type": "string",
      "description": "Where it ended."
    },
    "city": {
      "type": "string",
      "description": "Tariff city id, when giving miles instead of from and to."
    },
    "from": {
      "type": "string",
      "description": "Where the trip started."
    },
    "kind": {
      "enum": [
        "taxi",
        "uber",
        "lyft",
        "bolt",
        "minicab",
        "private_hire"
      ],
      "type": "string",
      "description": "Kind: taxi, uber, lyft, bolt or minicab. Defaults to taxi."
    },
    "paid": {
      "type": "string",
      "description": "What was paid, without the tip, for example 48.50."
    },
    "when": {
      "type": "string",
      "description": "When the trip starts, in local time: now (the default), a time like 18:30 or 6pm, or a date and time like 2026-10-09T18:30."
    },
    "miles": {
      "type": "number",
      "description": "Trip length in miles, instead of from and to."
    },
    "minutes": {
      "type": "number",
      "description": "Trip time in minutes, if known."
    }
  },
  "additionalProperties": false
}
check_fare annotations
{
  "title": "Was I overcharged? Check a fare that was paid",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
best_time_to_ride — Cheapest time of day to take a ride
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

best_time_to_ride input schema
{
  "type": "object",
  "required": [],
  "properties": {
    "city": {
      "type": "string",
      "description": "Tariff city id, for example nyc, london or chicago. Defaults to nyc."
    },
    "when": {
      "type": "string",
      "description": "When the trip starts, in local time: now (the default), a time like 18:30 or 6pm, or a date and time like 2026-10-09T18:30."
    },
    "miles": {
      "type": "number",
      "description": "Trip length in miles (New York only). Defaults to 3."
    }
  },
  "additionalProperties": false
}
best_time_to_ride annotations
{
  "title": "Cheapest time of day to take a ride",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
get_airport — Getting a ride at an airport
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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_airport input schema
{
  "type": "object",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "description": "Airport code or name, for example JFK, LAX, LHR or Heathrow."
    }
  },
  "additionalProperties": false
}
get_airport annotations
{
  "title": "Getting a ride at an airport",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
get_taxi_tariff — A city's official taxi meter tariff
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

get_taxi_tariff input schema
{
  "type": "object",
  "required": [
    "city"
  ],
  "properties": {
    "city": {
      "type": "string",
      "description": "Tariff city id from list_cities, for example nyc, chicago, london or birmingham."
    }
  },
  "additionalProperties": false
}
get_taxi_tariff annotations
{
  "title": "A city's official taxi meter tariff",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
check_driver_licence — Check a New York taxi or ride-app driver's licence
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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_driver_licence input schema
{
  "type": "object",
  "required": [],
  "properties": {
    "city": {
      "type": "string",
      "description": "City: nyc (live check) or another city id for guidance. Defaults to nyc."
    },
    "name": {
      "type": "string",
      "description": "Optional name the driver gave, to check it matches."
    },
    "number": {
      "type": "string",
      "description": "The TLC licence number shown in the app or on the partition card."
    }
  },
  "additionalProperties": false
}
check_driver_licence annotations
{
  "title": "Check a New York taxi or ride-app driver's licence",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
list_cities — Cities and airports covered
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

Cities and airports covered. Every city whose official taxi tariff is on file and every airport with ground transport facts.

list_cities input schema
{
  "type": "object",
  "required": [],
  "properties": {},
  "additionalProperties": false
}
list_cities annotations
{
  "title": "Cities and airports covered",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}
check_fleet_file — Check a cab firm's fleet.json
Advertised by the server during the last successful anonymous check.
Advertised read-onlyOpen-world

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.

check_fleet_file input schema
{
  "type": "object",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The https address of the fleet.json file."
    }
  },
  "additionalProperties": false
}
check_fleet_file annotations
{
  "title": "Check a cab firm's fleet.json",
  "readOnlyHint": true,
  "openWorldHint": true,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
348 ms
95th percentile latency
348 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 348 ms · metadata changed · 8 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http fair-fare-mcp https://goodturn-mcp.pages.dev/fairfare/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add fair-fare-mcp --url https://goodturn-mcp.pages.dev/fairfare/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable fair-fare-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "fair-fare-mcp": {
      "url": "https://goodturn-mcp.pages.dev/fairfare/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "fair-fare-mcp": {
      "type": "streamableHttp",
      "url": "https://goodturn-mcp.pages.dev/fairfare/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start fair-fare-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "fair-fare-mcp": {
      "type": "http",
      "url": "https://goodturn-mcp.pages.dev/fairfare/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http fair-fare-mcp https://goodturn-mcp.pages.dev/fairfare/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://goodturn-mcp.pages.dev/fairfare/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "fair-fare-mcp": {
      "serverUrl": "https://goodturn-mcp.pages.dev/fairfare/mcp"
    }
  }
}

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