Free Government & Open Data APIs

Official US Federal Government open data portal offering programmatic access to 300,000+ public datasets and APIs.

UK Government official open data repository for public spending and transit

Official NASA open datasets including space photography and planetary telemetry

US FDA drug approvals, adverse reaction events, and food safety recalls

UK Police crime statistics, neighborhood safety rankings, and street records

World Bank global economic development indicators, GDP, and poverty metrics

European Union open data catalog covering EU legislation, stats, and policies

US Census Bureau official demographic, social, and economic dataset APIs

US Congress legislative records, bill tracking, member votes, and committees

Programmatic access to the Agent Access Index, a census of platforms measuring whether AI agents can register and interact. Provides REST and MCP endpoints plus downloadable dataset files describing platform signup outcomes.

CA.gov serves as the official website for the State of California, providing access to various government services and resources for residents and visitors. Users can find information related to state departments, disaster assistance, and popular services like obtaining a driver's license or a birth certificate.

The Data.gov.au API provides programmatic access to datasets published by the Australian government. It allows users to search, filter, and retrieve detailed information about datasets, including metadata and download options.

A public dataset (with JSON/CSV) of fees and processing times for citizenship-by-descent routes, compiled from government sources and timestamped. Machine-readable exports are provided for embedding and analysis.

Provides access to data from the Federal Register, allowing users to fetch single or multiple documents, perform searches, and access metadata associated with these documents. This API returns data in both CSV and JSON formats, and no API keys are required for use.

Provides access to various city services, resources, and information for residents, visitors, and businesses in Las Vegas. Users can retrieve data about city events, government initiatives, public safety services, and more.

The NPPES API provides a real-time alternative to accessing NPPES public data, allowing users to retrieve detailed information about healthcare providers using their National Provider Identifier (NPI). Unlike the traditional method of batch downloads, this API facilitates faster and more efficient queries for provider data.

Provides dataset of newborn first names in the Canton of St.Gallen since 1987, based on official registry data from the Federal Office for Civil Status. Names with less than five occurrences per year are grouped under 'other names' for privacy reasons.

The Open Data Hub API provides programmatic access to various datasets and resources. It allows users to retrieve, submit, and manage data related to domains such as mobility and tourism efficiently.

Allows users to search and access datasets from the Government of Canada. It facilitates learning how to work with datasets and provides insights into how government data has been utilized.

Provides machine-readable data on parliamentary activities in Switzerland.

Provides access to various public records, allowing users to retrieve information about schools, hospitals, and federal agencies through specific endpoints. It offers data export in both JSON and CSV formats without requiring an API key, making it accessible for developers and researchers.

The USAspending API provides public access to comprehensive U.S. government spending data, including federal contracts and grants.

The USPTO API Catalog provides developers with access to various APIs related to intellectual property. It includes information about registering, searching, and managing patents and trademarks, allowing for easy integration of government data into applications.

Provides access to various resources related to scientific articles, annotations, reports, and more. It allows users to retrieve, search, and manage scholarly content, emphasizing open access and public data sharing.

Open index of industry statistics from primary publishers across 32 industries, linking figures directly to source reports.