cityparity

cityparity compares two cities on the numbers that actually decide a move.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Compare Cities: Compare two cities for one household: take-home pay, full cost breakdown, the equivalent target salary needed to match source net cash, non-cash lifestyle deltas (vacation, parental le
  • List Cities: List all city slugs supported by cityparity, grouped by country. Call this first to discover valid slugs before any other tool; the optional country filter narrows to one country. Read-on
  • Get City Summary: Concise profile of one city: currency, tax shape (bracket count + top rate + payroll/national insurance), headline costs (rent / groceries / transit / childcare), safety-net values (

What data it sees

Do you need an account

No: the server works without sign-in

cityparity compares two cities on the numbers that actually decide a move. Give it a salary and a family situation and it returns take-home pay, a full cost breakdown (housing, healthcare, childcare, food, transit, travel home, property tax), the equivalent salary you'd need in the target city, and the non-cash deltas people move for: statutory vacation, parental leave, and universal healthcare. It can also rank cities by a composite quality score and look up inbound-worker tax regimes (Italy impatriati, Portugal IFICI, and others). About 165 cities across 69 countries. Free, no API key, hosted Streamable HTTP.

How to connect

How to connect cityparity to Claude

The server address to paste into Claude settings:

https://cityparity--bissell-skyler.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect cityparity to ChatGPT

The server address to paste into ChatGPT settings:

https://cityparity--bissell-skyler.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect cityparity to Cursor

The server address to paste into Cursor settings:

https://cityparity--bissell-skyler.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (6)

Raw names from tools/list. Only developers need these.

compare_citiesCompare two cities for one household: take-home pay, full cost breakdown, the equivalent target salary needed to match source net cash, non-cash lifestyle deltas (vacation, parental leave, healthcare), and a 0-100 quality score on five weighted dimensions. Use this for a head-to-head between two named cities; for a single city call get_city_summary, and to rank many cities call rank_cities. Read-only, no side effects; returns a text summary plus structured JSON. RSU income is NOT a parameter; RSU is treated as source-only because grants typically do not follow you across employers.
list_citiesList all city slugs supported by cityparity, grouped by country. Call this first to discover valid slugs before any other tool; the optional country filter narrows to one country. Read-only, no side effects; returns a text summary plus structured JSON.
get_city_summaryConcise profile of one city: currency, tax shape (bracket count + top rate + payroll/national insurance), headline costs (rent / groceries / transit / childcare), safety-net values (parental leave, vacation, universal healthcare), and data freshness. Lighter than compare_cities; use when the user is asking about one place rather than a comparison. Read-only, no side effects; returns a text summary plus structured JSON.
rank_citiesRank supported cities by composite quality-of-life score across five weighted dimensions (financial, healthcare, vacation, childcare, safety_net). Returns top N (default 10), with filters for country, countries, region (europe/asia/north_america/south_america/oceania), has_universal_healthcare, include_cities, and exclude_cities. Use this to shortlist across many cities; for a head-to-head between two named cities use compare_cities. The same scenario is applied to every city so scores are directly comparable (default: single person, 2BR rent, $100k USD-equivalent gross). Read-only, no side effects; returns a text summary plus structured JSON.
get_safety_netLook up safety-net values (parental leave weeks + paid percentage, universal healthcare flag, vacation days, public holidays) for 1-20 cities, plus the safety_net dimension score (0-100) for relative strength. Use when the user is asking specifically about family / leave / healthcare benefits rather than a full cost-of-living comparison. Read-only, no side effects; returns a text summary plus structured JSON.
get_inbound_tax_regimeLook up a city's inbound-worker tax regime, the special reduced-tax schemes for relocating workers that general cost-of-living tools do not surface. Returns null when the country has no modeled regime (most cities). Modeled regimes: Italy impatriati (Milan, Rome), Portugal IFICI (Lisbon, Porto), Belgium expat (Brussels), Poland B2B ryczałt (Warsaw, Kraków), Greece inbound (Athens). Each entry includes the mechanic (reduction percentage or flat rate), duration, income cap if any, and a conservative eligibility hint. Read-only, no side effects; returns a text summary plus structured JSON.