Top Government APIs Websites
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Top Government APIs

A list of all Government APIs, designed to answer the question "What are the best APIs for Government?" All major Web APIs and mobile API resources related to Government, including those formatted in XML or JSON and those for use with iOS and the iPhone, are featured on this list. An API (or Application Programming Interface) is a method software applications and programs use to interact with one another, and share data, rules, settings or specifications. APIs interact with applications, libraries, operating systems and more, and are often used for sharing or embedding content. Some of the most popular APIs used around the modern Web are the Google API, the Twitter API, Wikipedia's API and the Ruby API.
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    Empire 2.0 Tech Talk

    Government technology discussion platform
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    US government small business resources
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    Follow The Money

    Database of US campaign contributions
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    FCC

    U.S. Communications Data Service
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    FedSpending.org

    Database of US government spending
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    GovTracker

    Rhode Island state data services
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    Guardian Politics

    UK government and political resources
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    ikregeer.nl

    Dutch parliament documents
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    FRED

    US Federal Reserve Economic data
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    Civic Footprint

    Political geography lookup for Illinois
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    Idescat Municipality in Figures

    Statistical information on Catalan municipalities
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    Aadhaar UIDAI Authentication

    Online authentication for Indian citizens
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    LittleSis

    Database for tracking political and business relationships
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    Drumbone

    US political data aggregated from multiple sources
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    Data.gov.uk

    Public government database
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    MyBikeLane

    Read-Only API for MyBikeLane and UncivilServants Database
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    New York Times NY State Legislature

    NY State legislative member information
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    eAdvocacy services for nonprofits
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    United States political data lookup
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    GovTrack.us

    US Congress database service
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    U.S. political data lookup
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    OpenCongress

    US government data
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    Goslyudi.ru

    Public ratings of Russian government bloggers
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    Office for National Statistics

    UK neighborhood and census data
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    OpenSecrets

    U.S. political data lookup
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    Police

    UK police force mapping service
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    Poligraft

    Political Entity Extraction Service
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    Who is my Representative

    Database of US congressional representatives
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    Watchdog

    Political data lookup
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    Washington State Department of Revenue Sales Tax Rate

    Address based tax rate lookup service
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    UN Data

    United Nations information service
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    TheyWorkForYou

    Track the UK Parliament
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    Sunlight Labs Congress

    US Congress database service
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    Socrata Open Data

    Online data sharing service
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    World Government Data

    A portal to government data sets
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    Postcode Anywhere Government Data

    UK government data service
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    New York Times Districts

    Political districts service
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    OpenAustralia

    Australian government information service
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    CitySourced

    Mobile civic engagment tool
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    MAPLight.org Bill Positions

    Campaign donation and vote tracking service
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    LOUIS

    US federal documents database
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    ActBlue

    Democratic fundraising service
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    Sunlight Labs Real-time Congress

    Near Real-Time Information on the Current Congress Session
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    What They Claimed

    Expenses records for UK members of parliament
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    Transparency Data

    State and Federal campaign contribution data
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    Where Does My Money Go

    Government spending database
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    RealSearch TIN Reverse

    Tax ID verficiation service
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    Openly Local

    Government information tracking service
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    New York Times Congress

    US Congress historical data
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    New York Times Campaign Finance

    U.S. campaign finance data

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