ProofPrice MCP Server

Install ProofPrice MCP server

claude mcp add --transport http proofprice https://proofprice.com/api/mcp

{
  "mcpServers": {
    "proofprice": {
      "url": "https://proofprice.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "proofprice": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://proofprice.com/api/mcp"
      ]
    }
  }
}

{
  "servers": {
    "proofprice": {
      "type": "http",
      "url": "https://proofprice.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "proofprice": {
      "serverUrl": "https://proofprice.com/api/mcp"
    }
  }
}

Context tax

Connecting this server adds ~32,327 tokens of tool definitions to every model turn (bloated, 25 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (25)

• pricepaid_check_price5,798 tok

  Use this before paying: when a user or agent has a proposed price for something (a rent, a home, a litre of fuel, a medicine, a contract) and wants to know whether it is typical against recorded official evidence. Give the category (broadband, cars, childcare, construction, contracts, diet-costs, energy, farm-gate-prices, farm-prices, flights, fuel, groceries, home-sales, home-upgrades, hotels, insurance, land-prices, medical, medicines, producer-prices, rent, tuition and wholesale-power), the country, the same parameters that category's own tool takes, and the price. It runs the category's no

• pricepaid_home_sales3,091 tok

  Use this when a user asks what homes actually sold for in a town or area, what a fair price for a home is, or how much property costs there, in Austria (country AT), Australia (country AU), Belgium (country BE), Denmark (country DK), Finland (country FI), France (country FR), England & Wales (country GB), Ireland (country IE), the Netherlands (country NL), Norway (country NO), Portugal (country PT), Sweden (country SE), Singapore public housing (country SG), Taiwan (country TW) or the United States (Connecticut, New York City and Cook County IL only) (country US). Returns the median sale price

• pricepaid_grocery_prices2,769 tok

  Use this when a user asks what an everyday grocery item (milk, bread, eggs, butter, cheese, chicken, bananas, potatoes, sugar, tea, coffee, beer, wine...) costs in the shops in Canada (country CA), the United Kingdom (country GB), Ireland (country IE), countries WFP surveys (Africa, Asia, Middle East, Latin America) (country AF), countries WFP surveys (Africa, Asia, Middle East, Latin America) (country AM), countries WFP surveys (Africa, Asia, Middle East, Latin America) (country BD), countries WFP surveys (Africa, Asia, Middle East, Latin America) (country BF), countries WFP surveys (Africa,

• pricepaid_rent_prices2,559 tok

  Use this when a user asks what rent tenants actually pay or have agreed for a home in a town, area or postcode, how much it costs to rent a flat, house or room there, or how rents compare, in New South Wales, Australia (country AU), Canada (country CA), Catalonia, Spain (country ES), England and Wales (country GB), Ireland (country IE), Norway (country NO), New Zealand (country NZ), Sweden (country SE), Singapore public housing (country SG) or Taiwan (country TW). These are rents actually agreed or paid, taken from official records and statistics: registered tenancies, rental bond lodgements,

• pricepaid_fuel_prices_now2,184 tok

  Use this when a user asks the current price of petrol, diesel, E10, E85, LPG or CNG near a place in Brazil, Canada, Spain, the EU (national averages), France, the United Kingdom (national averages), Italy, Mexico, Malaysia, New Zealand, Taiwan or the United States, or where fuel is cheapest there. Returns the median and typical range of pump prices across stations in the area, the three cheapest stations, and the official source and licence. How fresh: Brazil: ANP publishes the survey as one file per month, so the newest survey week is usually one to four weeks old. Our copy is refreshed daily

• pricepaid_diet_costs1,918 tok

  Use this when a user asks how much it costs to eat healthily in a country, for example the cost of the cheapest healthy diet per person per day, how that cost changed on a year earlier, or how much of it goes on fruit, vegetables, animal-source foods, legumes and nuts, oils and fats or starchy staples, in about 68 countries worldwide (World Bank estimates) (country IE), about 68 countries worldwide (World Bank estimates) (country GB), about 68 countries worldwide (World Bank estimates) (country FR), about 68 countries worldwide (World Bank estimates) (country ES), about 68 countries worldwide

• pricepaid_energy_prices1,245 tok

  Use this when a user asks what households pay for electricity or natural gas per kWh in Brazil, the EU, Norway and Iceland or the United States, how that compares with another country, or how it changed since the previous period. Returns the official average price per kWh for a standard household consumption band, for the latest period published, with the same band excluding VAT and excluding all taxes, every band, the previous period and the change, and the official source and licence. This is a published average (price_type official_statistic), not a range built from sales, so the range fiel

• pricepaid_contract_prices1,226 tok

  Use this when a user asks what governments, councils, hospitals or other public buyers actually paid for something (laptops, school meals, road resurfacing, office cleaning, electricity, ambulances, waste collection and similar purchases) in EU and EEA states (TED), the United Kingdom (Contracts Finder) or the United States (federal contracts). Returns, from official contract award notices, the median awarded value per contract, a typical range (10th–90th percentile), the number of awards, the period covered, a confidence label, and the official source and licence. Important: the figures are T

• pricepaid_childcare_prices1,141 tok

  Use this when a user asks what childcare costs parents: the price of a nursery, daycare, childminder or after-school place for a baby, toddler, preschool or school-age child in a county, region, state or city, or how childcare prices compare, in England (country GB), Ireland (country IE), Norway (country NO) or the United States (country US). These are official surveys and statistics of the fees providers charge parents (or what households report paying), not adverts or listings, and they are before public subsidies or funded hours unless the answer says otherwise. Each answer is an official a

• pricepaid_farm_prices1,068 tok

  Use this when a user asks what farmers or wholesalers get for a food commodity (wheat, barley, maize, beef, pigs, lamb, chicken, eggs, milk, butter and other dairy products, olive oil, fruit and vegetables) in EU member states, how that price compares with last week, last month or a year ago, or how high it is against the last 12 months. Returns the latest official price for the country and product, per tonne or per 100 kg and per kg, for the week (milk: month) it applies to, the stage of the supply chain it is quoted at (farm gate, ex-silo, carcass, ex-packaging station), the change from the

• pricepaid_land_prices978 tok

  Use this when a user asks what agricultural land (farmland, arable land or grassland) sells for, or what it costs to rent, per hectare in EU member states and Norway, in a particular region of such a country, or how it changed since the year before. Returns the official average price per hectare (or the average rent per hectare for one year) for the latest year published, in the currency the answer states (euro and national currency where the source gives both), for the chosen land type (arable, permanent grassland and others), the previous year and change, the history, the other land types, t

• pricepaid_tuition_fees944 tok

  Use this when a user asks what a university or college charges students per year (tuition or registration fees for a bachelor's or master's degree) in Europe (country BE), Europe (country BG), Europe (country CZ), Europe (country DK), Europe (country DE), Europe (country EE), Europe (country IE), Europe (country GR), Europe (country ES), Europe (country FR), Europe (country HR), Europe (country IT), Europe (country CY), Europe (country LV), Europe (country LT), Europe (country LU), Europe (country HU), Europe (country MT), Europe (country NL), Europe (country AT), Europe (country PL), Europe (

• pricepaid_home_upgrade_prices901 tok

  Use this when a user asks what a home upgrade costs in England and Wales (heat pumps) (country GB), Great Britain (country GB) or Ireland (country IE): a heat pump, solar panels (solar PV), loft/attic or wall insulation, or new windows. Returns an official statistic: the cost that installers or owners declared when a grant or tax claim was made (a median or average the publisher states for a period), with the period, the publisher's own wording of what the figure includes, the official source and licence. These are declared installed costs at grant or claim, not receipts, not quotes and not wh

• pricepaid_farm_gate_prices703 tok

  Use this when a user asks what farmers received, per month, for a crop or animal product (wheat, barley, oats, canola, soybeans, corn, potatoes, cattle, hogs, lambs, chickens, turkeys, milk, eggs) in a region of Canada, or how that price compares with the month before or a year earlier. Returns the newest monthly price the statistics office publishes for the product and region, in the unit the office uses (per tonne, per hundredweight, per dozen, per kilolitre), the month it applies to, the change on the previous month and a year earlier, the last 12 months, the same product in other regions,

• pricepaid_broadband_prices701 tok

  Use this when a user asks what home internet (fixed broadband at a given speed, with or without phone and TV) or a mobile data plan costs per month in the EU, or how that compares between countries. Returns the official figure for a standard offer in the latest year published, the previous year and the change, and the same country's other offers, with the official source and licence. It is the cheapest posted offer of the largest operators, not what customers actually paid, and not a range built from sales: the range fields are null and there is no sample size. How fresh: annual figures with a

• pricepaid_medicine_prices675 tok

  Use this when a user asks what a medicine costs in a pharmacy, or how much of the price the health insurance reimburses, in Spain (country ES), France (country FR), England (NHS) (country GB), Italy (country IT) or the United States (country US). Returns the median and typical range (10th–90th percentile) of the legally fixed price per box across all pack sizes and strengths sold under that medicine name, the number of packs, the period, a confidence label, and the official source and licence. These are regulated (posted) prices, not market transactions, and only for reimbursable medicines. Do

• pricepaid_medical_prices654 tok

  Use this when a user asks what a medical service or hospital stay costs, or what was actually paid for it, for example an office visit, an MRI, a colonoscopy, physical therapy, a knee replacement or a pneumonia stay, in the United States (what Medicare paid doctors and hospitals) (country US). Returns the official average amount the public health insurer allowed per service (doctors' services, in an office or a facility) or paid per hospital stay (by hospital-stay group), nationally or for one state where the source publishes it, with the number of services or discharges behind it, the share t

• pricepaid_producer_prices645 tok

  Use this when a user asks what farmers received at the farm gate, per year, for a crop or animal product (wheat, maize, rice, soybeans, potatoes, tomatoes, apples, bananas, beef, pork, chicken, eggs, milk, coffee, cotton and many more) in 9 countries from FAOSTAT (US, CA, BR, MX, AU, NZ, SG, JP, KR), or how that annual price changed from the year before. Returns the newest annual producer price for the country and product, per tonne in the country's own currency (and in US dollars where available) and per kg, the year it applies to, the change on the previous year, whether the source marks the

• pricepaid_wholesale_power_prices613 tok

  Use this when a user asks what electricity costs on the wholesale (day-ahead power exchange) market in Germany or Austria, Belgium, Denmark, France, northern Italy, the Netherlands, south-west Norway and Poland: the recent median, the typical range across hours, the cheapest and dearest hour, the latest hour and how many hours had negative prices. Prices are in euro per MWh (1 MWh = 1000 kWh; the answer also gives cents per kWh). Built from the hourly auction prices of the recent days, with the official source and licence. How fresh: Germany: hourly prices, published the day before delivery (a

• pricepaid_airfare_prices543 tok

  Use this when a user asks what people actually pay for a flight between two cities or airports (for example JFK to LAX, or Chicago to Miami), or what the average airfare out of a city is, in the United States (domestic flights within the contiguous 48 states) (country US). Returns the official average fare per passenger each way, in the currency the answer states, for the latest quarter published, with (where the source publishes them) the passengers per day behind it, the share of the largest carrier, the change on a year earlier and the last few quarters, plus the official source and licence

• pricepaid_construction_costs520 tok

  Use this when a user asks what it costs to build a home or other building per square metre in Brazil (country BR), how much of that is materials and how much is labour, or how states or regions compare. Returns the official average cost per square metre for the latest month published, split into materials and labour, with the previous month, the official source and licence. This is a published survey average of unit costs (price_type official_statistic), not a range built from invoices or sales, so the range fields are null and there is no sample size. How fresh: monthly; the latest month on 1

• pricepaid_hotel_prices479 tok

  Use this when a user asks what a hotel room costs per night, on average, in a country, region, province or city in Spain (country ES), or how hotel prices changed on a year earlier. Returns the official average daily rate: the average price actually charged per occupied hotel room per night, published monthly by the national statistics office from its hotel survey, with the month, the change on the same month a year earlier where published, the official source and licence. This is a published average over all hotels in the area, not a range of individual bookings and not a quote for a date, so

• pricepaid_insurance_prices370 tok

  Use this when a user asks what insurance actually costs the people who hold it, for example what homeowners pay per year for flood insurance in a ZIP code or state, in the United States (federal flood insurance) (country US). Returns the median yearly charge with the typical range (10th to 90th percentile) across real policies, the number of policies behind it, the period, a confidence label, and the official source and licence. Only aggregates are returned, never one policy, and never fewer than 5 policies. Read the method in the answer: some premiums are set partly by public rules, so they a

• pricepaid_car_prices306 tok

  Use this when a user asks what people actually paid for the right to own or buy a car (an entitlement or quota certificate, a sale or an auction result) in Singapore car ownership rights (COE) (country SG). Returns the median winning price, a typical range (10th–90th percentile), the number of bidding rounds or sales, the period covered, a confidence label, and the official source and licence. Do not use for asking prices, dealer listings, or other countries.

• pricepaid_coverage257 tok

  Use this to see which countries and kinds of price the tools cover. It returns a short overview: for each tool the countries it answers for, how many official sources stand behind it and how often they update. Give category and/or country to get the full detail of the matching sources instead (publisher, licence, attribution line, limits, example requests). Every source at once, as JSON: https://proofprice.com/api/v1/coverage

Freshness

Not enough public signals yet to judge maintenance.

1. Last commit (default branch)

   2026-10-14 · 4d ago · GitHub

2. Latest release

   no data · GitHub

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-14 · 4d ago · official registry · v0.4.0