NationBuilder API
| NationBuilder is an open platform for users to create online communities centered around issues relevant to them. Users can create community organization websites, access a people database, and use... | Social | 46 | REST |
USPS Track/Confirm Fields API
| The USPS Track/Confirm Fields API allows developers to get detail and summary information for a shipment broken down by fields. Developers can include up to 10 tracking IDs in each request.
This... | Shipping | 257 | REST v3.6 |
NOAA National Weather Service (NWS) NDFD SOAP API
| The NOAA National Weather Service (NWS) NDFD SOAP API provides programmatic access to forecasts, weather watches/warnings, current observations, tropical cyclone advisories, and storm prediction... | Weather | 446 | RPC v1.0 |
OpenSecrets API
| The OpenSecrets API provides access to the data displayed on OpenSecrets.org. OpenSecrets performs research to track money in U.S. politics and its effect on elections and public policy. Use the API... | Government | 59 | REST v1.0 |
GovTrack.us API
| [Editor's Note: This API is no longer available. For details, click here.]
From their site: GovTrack.us tracks the U.S. Congress and is a reference for legislation, votes, Members of Congress,... | Government | 59 | REST |
Your Mapper API
| Your Mapper aggregates local government data from cities across the nation, standardizes it, geocodes it, and keeps it up to data for you to use in your apps and services. The Your Mapper API allows... | Mapping | 46 | Unspecified |
Maponics API
| A professional-grade GIS data provider offering neighborhood boundaries dataset via an API. Also an API for neighborhood boundaries, ZIP Code boundaries and postal carrier route boundaries. | Mapping | 96 | REST |
Cicero API
| The Cicero API matches addresses, zip codes, or coordinates to legislative districts and elected official contact information. Cicero easily integrates into an organization's existing web application... | Politics | 60 | REST v3.1 |
Follow The Money API
| From their site: Money in state politics plays a pivotal role in shaping public policy in individual states and across the nation. The nonpartisan Institute on Money in State Politics tracks... | Government | 42 | REST |
PDXCouncilConnect API
| PDXCouncilConnect is a service of the Portland, Oregon, eGovPDX group. The city technology department makes the API available to access city council agenda and voting information. The... | Government | 6 | REST |
MapLight API
| MapLight looks at the connection between campaign donations and legislative votes in an effort to reveal money's influence on politics.
MapLight performs research on supporting and opposing... | Government | 16 | REST |
Google Civic Information API
| The Google Civic Information API allows developers to access civic information including polling place, early vote location, candidate data, and election official information for use in third party... | Government | 34 | |
NYC Open Data API
| NYC Open Data is a collection of 750 New York City public datasets made available by city agencies and organizations. Some of the popular data includes parking facilities, federal stimulus... | Government | 80 | Unspecified v1.0 |
OpenCongress API
| OpenCongress brings together official government data with news and blog coverage to give users the real story behind each bill. The OpenCongress API also developers to access all this data for their... | Government | 27 | REST |
Capitol Words API
| The service extracts language daily from the Congressional Record, which reports the full text of deliberations in the U.S. House of Representatives and Senate. Applications can query those search... | Government | 21 | REST |
Australian Business Number Lookup API
| ABN (Australian Business Number) Lookup. An XML interface to the ABN Lookup is available to registered users. Using this facility, you can integrate ABN lookups into your own applications. ABN Lookup... | Government | 28 | RPC |
StrikeIron Super Data Pack API
| The Super Data Pack brings together dozens of Web services into one easy-to-use Super Web service. With the Super Data Pack, developers and end-users can leverage multiple data sources for use within... | Reference | 4 | RPC |
USGS Elevation Query Service API
| From the US Geological Survey: The Elevation Query Web Service returns the elevation in feet or meters for a specific latitude/longitude point from the USGS Seamless Elevation data sets hosted at... | Mapping | 30 | RPC |
BusinessUSA Events API
| The BusinessUSA Events API provides access to data related to various subjects associated with the creation and management of a business. The BusinessUSA Events API uses a resource URL request and... | Government | 6 | REST |
Team POPONG POODL API
| POODL (POpong Open Data Library) is an API that allows users to retrieve legislative data from South Korea, including information on the National Assembly's members, candidates, and bills. Automated... | Government | 6 | REST |
USPS Package Services API
| The USPS Package Services API can help predict when a package will arrive at its destination. Package types include Standard Post, Bound Printed Matter, Library Mail, and Media Mail. These are... | Shipping | 11 | REST v2.7 |
Driving-Distances API
| This collection of distance calculators, route planners, and other travel-related calculators, uses postcodes and ZIP Codes to make its calculations. Primarily for the United Kingdom, the service... | Tools | 8 | REST |
USAJOBS API
| USAJOBS, under the umbrella of the United States Office of Personnel Management (OPM), is the Government’s official program for Federal jobs and employment information. OPM maintains the USAJOBS... | Jobs | 66 | |
GovData API
| GovData is an unofficial search service that aggregates and process publicly available information on Swedish Government tax expenditures. Current functionality includes the ability to search for... | Government | 12 | REST |
Restricted Party Screening API
| Restricted Party Screening is a compliance web tool that consolidates international interdiction lists to ensure that customer transactions do not violate regional, unilateral, or multilateral... | Enterprise | 2 | RPC |
