MCPFax Public-Data Utility API

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

One public fact when you have no API key: where, what time, what rate. 31 lookups.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "MCPFax Public-Data Utility API": {
      "url": "https://mcpfax-utility.bowling-anthony.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (31)

• v1_geocode read-only

  Forward geocoding: Place name → coordinates, country, timezone. Source: Open-Meteo / Nominatim. $0.005 per call · GET /v1/geocode

  Parameters:

  • q (required) — string — Place name to search. Example: 'London'.
  • count — integer — Max results 1-10. Example: '3'.
  • country — string — ISO-3166 alpha-2 filter. Example: 'GB'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_reverse_geocode read-only

  Reverse geocoding: Coordinates → nearest address. Source: Nominatim / BigDataCloud. $0.005 per call · GET /v1/reverse-geocode

  Parameters:

  • lat (required) — number — Latitude. Example: '34.05'.
  • lon (required) — number — Longitude. Example: '-118.24'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_timezone read-only

  Timezone by coordinate: Coordinates → IANA timezone, UTC offset, local time. Source: Open-Meteo. $0.005 per call · GET /v1/timezone

  Parameters:

  • lat (required) — number — Latitude. Example: '48.85'.
  • lon (required) — number — Longitude. Example: '2.35'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_zip read-only

  Postal code lookup: ZIP/postal code → place(s) & coordinates. Source: Zippopotam.us. $0.005 per call · GET /v1/zip

  Parameters:

  • code (required) — string — Postal code. Example: '90210'.
  • country — string — ISO-3166 alpha-2 (default US). Example: 'US'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_airports_nearest read-only

  Nearest airports: Coordinates → nearest airports (IATA/ICAO) by distance. Source: OurAirports (edge dataset). $0.008 per call · GET /v1/airports/nearest

  Parameters:

  • lat (required) — number — Latitude. Example: '40.71'.
  • lon (required) — number — Longitude. Example: '-74.0'.
  • limit — integer — Max results 1-25. Example: '5'.
  • radius — number — Search radius km (default 500). Example: '300'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_ip_geolocation read-only

  IP geolocation: IP address → location, ASN, ISP. Source: ipwho.is / ip-api. $0.005 per call · GET /v1/ip-geolocation

  Parameters:

  • ip (required) — string — IPv4 or IPv6 address. Example: '8.8.8.8'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_country read-only

  Country metadata: Name/ISO code → currency, capital, calling code, languages, flag. Source: ISO 3166 (edge dataset). $0.005 per call · GET /v1/country

  Parameters:

  • q (required) — string — Country name or ISO alpha-2/alpha-3/numeric. Example: 'Japan'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_weather read-only

  Weather forecast: Current conditions, the next 12 hours with rain probability, a multi-day forecast, and a plain answer to "will it rain". Source: Open-Meteo / NWS. $0.005 per call · GET /v1/weather

  Parameters:

  • q — string — Place name, resolved and echoed back: 'London' returns location 'London, United Kingdom'. Use this OR lat/lon.. Example: 'London'.
  • lat — number — Latitude, if you already have coordinates. Example: '51.5'.
  • lon — number — Longitude, if you already have coordinates. Example: '-0.13'.
  • days — integer — Forecast days 1-16 (default 3). Example: '3'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_weather_alerts read-only

  Active weather alerts: Active NWS watches/warnings for a US coordinate. Source: US National Weather Service. $0.008 per call · GET /v1/weather-alerts

  Parameters:

  • q — string — Place name (alternative). Example: 'Miami'.
  • lat — number — Latitude. Example: '29.76'.
  • lon — number — Longitude. Example: '-95.37'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_air_quality read-only

  Air quality: US & European AQI plus pollutant concentrations by coordinate. Source: Open-Meteo Air Quality (CAMS). $0.005 per call · GET /v1/air-quality

  Parameters:

  • q — string — Place name (alternative). Example: 'Delhi'.
  • lat — number — Latitude. Example: '34.05'.
  • lon — number — Longitude. Example: '-118.24'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_sun read-only

  Sunrise / sunset: Sunrise, sunset, solar noon, day length by coordinate. Source: sunrise-sunset.org / Open-Meteo. $0.005 per call · GET /v1/sun

  Parameters:

  • q — string — Place name (alternative). Example: 'Cairo'.
  • lat — number — Latitude. Example: '34.05'.
  • lon — number — Longitude. Example: '-118.24'.
  • date — string — YYYY-MM-DD (default today). Example: '2026-06-21'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_holidays read-only

  Public holidays: Public holidays for a country & year. Source: Nager.Date. $0.005 per call · GET /v1/holidays

  Parameters:

  • country (required) — string — ISO-3166 alpha-2. Example: 'US'.
  • year — integer — Year (default current). Example: '2026'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_business_days read-only

  Business-day math: Count business days in a range, or add/subtract N business days, skipping weekends & holidays. Source: computed + Nager.Date. $0.005 per call · GET /v1/business-days

  Parameters:

  • start (required) — string — Start date YYYY-MM-DD. Example: '2026-01-02'.
  • end — string — End date (count mode). Example: '2026-01-31'.
  • days — integer — Offset in business days (offset mode; may be negative). Example: '10'.
  • country — string — ISO alpha-2 for holidays (default US). Example: 'US'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_fx read-only

  Currency exchange rates: Reference FX rates (ECB) with optional amount conversion. Source: Frankfurter (ECB) / open.er-api. $0.005 per call · GET /v1/fx

  Parameters:

  • from (required) — string — Base currency ISO-4217. Example: 'USD'.
  • to (required) — string — Target currency/currencies (comma-separated). Example: 'EUR,GBP,JPY'.
  • amount — number — Amount to convert (default 1). Example: '100'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_crypto_price read-only

  Crypto spot price: Spot price for a crypto asset in a fiat/crypto quote currency. Source: Coinbase / CoinGecko. $0.005 per call · GET /v1/crypto-price

  Parameters:

  • symbol (required) — string — Asset symbol. Example: 'BTC'.
  • vs — string — Quote currency (default USD). Example: 'USD'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_stock_quote read-only

  Stock quote: Delayed quote & key stats for an equity/ETF/index. Source: Yahoo Finance. $0.005 per call · GET /v1/stock-quote

  Parameters:

  • symbol (required) — string — Ticker symbol. Example: 'AAPL'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_sec_company_facts read-only

  SEC EDGAR company facts: Company profile + recent filings; or XBRL financial facts for a concept. Source: SEC EDGAR. $0.01 per call · GET /v1/sec-company-facts

  Parameters:

  • cik — string — SEC CIK. Example: '320193'.
  • ticker — string — Ticker (or use cik). Example: 'AAPL'.
  • concept — string — XBRL concept for financials. Example: 'Revenues'.
  • taxonomy — string — XBRL taxonomy (default us-gaap). Example: 'us-gaap'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_inflation read-only

  Inflation calculator: Adjust an amount between years using CPI (any country, not just US). Source: World Bank CPI. $0.008 per call · GET /v1/inflation

  Parameters:

  • from (required) — integer — Start year. Example: '2000'.
  • to — integer — End year (default: latest available, ~1-2 yrs behind). Example: '2020'.
  • amount — number — Amount to adjust (default 1). Example: '100'.
  • country — string — ISO alpha-3 (default US). Example: 'USA'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_econ_indicator read-only

  Economic indicator: World Bank indicator time series for a country (GDP, unemployment, etc.). Source: World Bank Open Data. $0.008 per call · GET /v1/econ-indicator

  Parameters:

  • country (required) — string — ISO alpha-2/alpha-3. Example: 'US'.
  • indicator (required) — string — World Bank indicator code. Example: 'NY.GDP.MKTP.CD'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_lei read-only

  LEI lookup: Legal Entity Identifier record by LEI code or entity name. Source: GLEIF. $0.008 per call · GET /v1/lei

  Parameters:

  • q — string — Entity legal name (if no LEI). Example: 'Apple Inc.'.
  • lei — string — 20-character LEI. Example: 'HWUPKR0MPOU8FGXBT394'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_vin_decode read-only

  VIN decode: Decode a US-market Vehicle Identification Number. Source: NHTSA vPIC. $0.01 per call · GET /v1/vin-decode

  Parameters:

  • vin (required) — string — 11-17 char VIN. Example: '1HGCM82633A004352'.
  • year — integer — Model year hint. Example: '2003'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_icd10 read-only

  ICD-10-CM search: Search ICD-10-CM diagnosis codes by term or code. Source: NLM Clinical Tables. $0.008 per call · GET /v1/icd10

  Parameters:

  • q — string — Search text. Example: 'type 2 diabetes'.
  • code — string — Code prefix (alternative). Example: 'E11'.
  • maxList — integer — Max results 1-50. Example: '10'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_naics read-only

  NAICS lookup: Official 2022 NAICS code → title, hierarchy, children; or keyword search. Source: U.S. Census 2022 NAICS (edge dataset). $0.008 per call · GET /v1/naics

  Parameters:

  • q — string — Keyword search (alternative). Example: 'software publishers'.
  • code — string — 2-6 digit NAICS code. Example: '541511'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_cfr read-only

  CFR legal text: Fetch current Code of Federal Regulations text for a citation. Source: eCFR (GovInfo). $0.01 per call · GET /v1/cfr

  Parameters:

  • title (required) — integer — CFR title 1-50. Example: '29'.
  • date — string — Effective date YYYY-MM-DD (default latest). Example: '2026-01-01'.
  • part — string — Part number. Example: '1910'.
  • section — string — Section number. Example: '1910.132'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_drug_label read-only

  FDA drug label: openFDA structured drug labeling (uses, warnings, dosage). Source: openFDA. $0.01 per call · GET /v1/drug-label

  Parameters:

  • q (required) — string — Search value. Example: 'ibuprofen'.
  • field — string — openFDA field to search. Allowed: openfda.brand_name (default), openfda.generic_name, openfda.manufacturer_name, openfda.substance_name, openfda.product_type, openfda.route. Example: 'openfda.generic_name'.
  • limit — integer — Max results 1-5. Example: '1'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_wikipedia read-only

  Wikipedia summary: Lead summary/extract for a Wikipedia page. Source: Wikipedia REST. $0.005 per call · GET /v1/wikipedia

  Parameters:

  • title (required) — string — Page title. Example: 'Cloudflare'.
  • lang — string — Wiki language (default en). Example: 'en'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_unit_convert read-only

  Unit conversion: Convert between units (length, mass, volume, speed, area, data, time, pressure, energy, temperature, angle). Source: deterministic edge compute. $0.005 per call · GET /v1/unit-convert

  Parameters:

  • value (required) — number — Value to convert. Example: '100'.
  • from (required) — string — Source unit. Example: 'mi'.
  • to (required) — string — Target unit. Example: 'km'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_dns read-only

  DNS lookup: Resolve DNS records via DNS-over-HTTPS. Source: Google / Cloudflare DoH. $0.005 per call · GET /v1/dns

  Parameters:

  • name (required) — string — Hostname. Example: 'example.com'.
  • type — string — Record type (default A). Example: 'MX'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_rdap read-only

  RDAP whois: Structured domain/IP registration data (modern whois). Source: RDAP (rdap.org). $0.005 per call · GET /v1/rdap

  Parameters:

  • ip — string — IP address (alternative). Example: '8.8.8.8'.
  • domain — string — Domain name. Example: 'example.com'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_robots read-only

  robots.txt / llms.txt: Fetch and parse a site's robots.txt and llms.txt. Source: direct fetch. $0.005 per call · GET /v1/robots

  Parameters:

  • url (required) — string — Any URL on the target site. Example: 'https://www.cloudflare.com'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• v1_validate_email read-only

  Email validation: Syntax check + live MX/deliverability + disposable-domain flag. Source: edge compute + DoH. $0.005 per call · GET /v1/validate-email

  Parameters:

  • email (required) — string — Email address. Example: '[email protected]'.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

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