PASAR API · UNITED STATES

APIs in United States

17 verified APIs for building in United States ~ 17 government / open-data sources plus commercial providers (payments, maps, banking, transit and more), each with auth, pricing and docs at a glance. Open the app to search, copy a snippet, or connect it to your AI agent.

Government services 6

SEC EDGAR APIs ~ US public-company filings & financial data U.S. Securities and Exchange Commission · free · no-auth
Federal Register API ~ US government documents, rules & notices U.S. Office of the Federal Register / GPO · free · no-auth
Data.gov ~ US federal open-data catalog U.S. General Services Administration (GSA) · free · no-auth
USAspending.gov ~ federal spending & awards U.S. Treasury (Bureau of the Fiscal Service) · free · no-auth
Congress.gov ~ bills, members, votes & laws Library of Congress · free
OpenFEC ~ U.S. campaign finance data Federal Election Commission · free

Data & enrichment 5

US Census Bureau ~ demographics & economy API U.S. Census Bureau · free
openFDA ~ drug, device & food safety data U.S. Food & Drug Administration · free
FBI ~ Crime Data Explorer (UCR/NIBRS) API FBI Uniform Crime Reporting Program · free
BLS ~ labor stats (CPI, jobs, wages) U.S. Bureau of Labor Statistics · free
USDA ~ FoodData Central nutrition database U.S. Department of Agriculture (ARS) · free

Travel & mobility 2

NPS ~ national parks info, alerts & events National Park Service · free
NHTSA vPIC ~ VIN decode & vehicle data NHTSA · free · no-auth

Commodities & metals 1

FRED API ~ energy & commodity series (WTI, Brent, natural gas) Federal Reserve Bank of St. Louis · free

Realtime 1

National Weather Service ~ US weather API National Weather Service (NOAA) · free · no-auth

Banking & finance 1

U.S. Treasury ~ Fiscal Data (debt, rates, FX) U.S. Department of the Treasury · free · no-auth

Design & media 1

Smithsonian ~ Open Access collections API Smithsonian Institution · free