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Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

MCPFax Public-Data Utility API

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

Checks passed
13 / 22

1 failed · 8 not measured

Median response
100 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
31

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 100 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-06-18, serverInfo.name com.mcpscores/public-data-api.

  • Pass
    Lists tools

    tools/list returned 31 tools.

  • Pass
    Current protocol

    Negotiated 2025-06-18. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 100 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 100 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    78 of 78 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Fail
    Source repo linked

    No repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-08-31T11:33:43.481674Z, within 180 days.

  • Not measured
    Open-source licence

    No GitHub repository to ask about a licence.

Start using MCPFax Public-Data Utility API

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http mcpfax-public-data-utility-api https://mcpfax-utility.bowling-anthony.workers.dev/mcp

Capabilities

Tools 31

v1_air_quality

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

Discovered
v1_airports_nearest

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

Discovered
v1_business_days

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

Discovered
v1_cfr

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

Discovered
v1_country

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

Discovered
v1_crypto_price

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

Discovered
v1_dns

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

Discovered
v1_drug_label

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

Discovered
v1_econ_indicator

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

Discovered
v1_fx

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

Discovered
v1_geocode

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

Discovered
v1_holidays

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

Discovered
v1_icd10

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

Discovered
v1_inflation

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

Discovered
v1_ip_geolocation

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

Discovered
v1_lei

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

Discovered
v1_naics

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

Discovered
v1_rdap

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

Discovered
v1_reverse_geocode

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

Discovered
v1_robots

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

Discovered
v1_sec_company_facts

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

Discovered
v1_stock_quote

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

Discovered
v1_sun

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

Discovered
v1_timezone

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

Discovered
v1_unit_convert

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

Discovered
v1_validate_email

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

Discovered
v1_vin_decode

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

Discovered
v1_weather

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

Discovered
v1_weather_alerts

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

Discovered
v1_wikipedia

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

Discovered
v1_zip

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

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected100 ms31