Public data
Government, reference and community datasets. Anonymous access does not imply unrestricted licensing or unlimited requests.
Services are ordered by documented operations, attributed reports and current documentation. 154 services are classified here. Each card shows the interfaces a service offers; open it for access requirements and sources.
Categories · Tasks · Interfaces · How listings are checked
Holiday API
Holiday data API for public holidays and observances across countries, states, and provinces.
calendar · Public data
API · Access documentation verifiedThe Star Wars API (SWAPI)
Programmatic JSON data about Star Wars people, planets, films, species, starships and vehicles.
Media and entertainment · Public data
MCP · Access documentation verifiedPirate Weather
Forecast weather API using a Dark Sky-compatible response format and public weather data sources.
Weather and climate · Public data
API · Access documentation verifiedGeoDataSource Location Search
Location search REST API that finds the nearest city and returns geographic and local-time attributes for supplied coordinates.
location · Public data
API · Access documentation verifiedCryptAPI
Cryptocurrency payment gateway with a read-only API endpoint for supported blockchain, cryptocurrency, and token information.
cryptocurrency · Commerce · Public data · api
API · Access documentation verifiedFreeOpenAPI.dev
A multi-category JSON data API offering search and lookup across public data sources, including books, art, finance, geography, weather, and other datasets.
Public data · books · art · public information
API · Access documentation verifiedOpen Government, Canada
The Government of Canada Open Government Portal provides machine-readable access to public datasets through CKAN APIs.
Public data · open data · API
API · Access documentation verifiedXFlux
X/Twitter read API for retrieving public user profiles, timelines, tweets, and search results.
social media · Public data · Developer tools
API · Access documentation verifiedBALLDONTLIE
NBA Teams, players, games, stats, standings, betting odds, player props, and more
sports · Public data
API · Access documentation verifiedClearMarket
A prediction-market reference service for querying events and their linked markets, grades, and catalysts.
Finance and economic data · Public data · markets
API · Access documentation verifiedDistrictAPI
REST API for U.S. public school district and school data, including address-to-district lookup, enrollment, demographics, and boundaries.
Research and knowledge · Public data · Developer tools
API · Access documentation verifiedCalendarific Global Holidays API
Calendarific API for retrieving public, local, religious, and bank holidays and observances by country and year.
calendar · holidays · Public data · api
API · Access documentation verifiedFinance Foundation
Open financial reference data for companies, markets, assets, funds and financial identifiers, provided as versioned JSON.
Finance and economic data · Public data · Developer tools
API · Access documentation verifiedREST Countries
Normalized country data API covering populations, currencies, languages, borders, capitals, and related fields.
Public data
API · Access documentation verifiedU.S. Census Bureau Data API
Official public datasets on population, demographics and economics, accessible by query API using survey variables, time periods and geographic filters.
Public data · government data · demographics
API · Access documentation verifiedNOAA National Centers for Environmental Information
NOAA NCEI Climate Data Online web services provide access to weather and climate data for developer scripts and programs.
Public data
API · Access documentation verifiedAPI · Documentation checked: 2026-10-06GenderAPI.io
API that estimates gender from first or full names, email addresses, or usernames, with confidence and usage metadata.
Public data · identity · Developer tools
API · Access documentation verifiedSentryDock
AI-agent service for source-linked news search and ongoing monitoring, with a documented HTTP API and remote MCP connection.
Public data · Developer tools · news
API · Access documentation verifiedData.gov Catalog API
Search and retrieve metadata about datasets published by federal, state, local, and tribal governments.
Public data · Public data
API · Documentation checked: 2026-10-09U.S. Bureau of Labor Statistics
A U.S. government source of labour market and economic statistics, including public time-series data.
Public data
API · Documentation checked: 2026-10-09e-Gov Electronic Application API
Japan's e-Gov API for electronic government applications, application-status inquiries, and retrieving electronic documents.
Public data · Productivity and collaboration
API · Documentation checked: 2026-10-13Tomba
Tomba provides email finder, verifier, and enrichment APIs for company and professional contact data.
sales · Communications · Public data
API · Documentation checked: 2026-10-09Hiasynth
Hiasynth provides a synthetic population model of Europe for market research through an MCP connector. Its describe_area read tool describes who lives in a specified place using synthetic population data.
market-research · Public data · mcp
MCP · Documentation checked: 2026-10-11Valyu
Valyu provides a hosted MCP server for web and specialized-index research, including the valyu_search tool.
Research and knowledge · mcp · Public data
MCP · Documentation checked: 2026-10-11