Public APIs with no API key — page 4

Genetic conditions, genes, chromosomes and mtDNA data

Repository and archive for study designs, research materials, data, manuscripts, etc

Fake REST API for testing and prototyping

Icons (find "search icon" hyperlink in page)

Go module versions and source metadata

Get your visitor's country from their IP

bng2latlong

Geocoding

Convert British OSGB36 easting and northing (British National Grid) to WGS84 latitude and longitude

An open RESTful API for Pokémon data

The Art Institute of Chicago's API provides JSON formatted data as a REST-style service that allows developers to explore and integrate the museum’s data into their projects. This API is the same tool that powers our website, our mobile app, and many other technologies in the museum.

Create an image of your GitHub contributions

Brazil Central Bank Open Data

QuickChart

Development

Generate chart and graph images

Data on higher education institutions in the United States

Contains live datasets including information about petitions, bills, MP votes, attendance and more

U.S. EPA Enforcement and Compliance History Online (ECHO) - All Data

Open Data

Enforcement and Compliance History Online (ECHO) is a tool developed and maintained by EPA's Office of Enforcement and Compliance Assurance for public use. ECHO provides integrated compliance and enforcement information for over 1 million regulated facilities nationwide. ECHO Rest Services provide multiple service endpoints, each with specific capabilities, to search and retrieve data on facilities regulated as Clean Air Act (CAA) stationary sources, Clean Water Act (CWA) dischargers, Resource Conservation and Recovery Act (RCRA) hazardous waste generators/handlers, and Safe Drinking Water Act (SDWA) public water systems. Data of interest from other EPA sources, such as the Toxics Release Inventory, is also supplied for context. \ The get_facilities, get_map, get_qid, and get_download end points are meant to be used together, while the enhanced get_facility_info end point is self contained. The get_facility_info end point returns either an array of state, county or zip clusters with summary statistics per cluster or an array of facilities. \ The recommended use scenario for get_facilities, get_qid, get_map, and get_downoad is: \ <b>1)</b> Use get_facilities to validate passed query parameters, obtain summary statistics and to obtain a query_id (QID). QIDs are time sensitive and will be valid for approximately 30 minutes. <b>2)</b> Use get_qid, with the returned QID, to paginate through arrays of facility results. <b>3)</b> Use get_map, with the returned QID, to zoom in/out and pan on the clustered and individual facility coordinates that meet the QID query criteria. <b>4)</b> Use get_download, with the returned QID, to generate a Comma Separated Value (CSV) file of facility information that meets the QID query criteria. \ \ Use the qcolumns parameter to customize your search results. Use the Metadata service endpoint for a list of available output objects, their Column Ids, and their definitions to help you build your customized output. \ Additional ECHO Resources: <a href="https://echo.epa.gov/tools/web-services">Web Services</a>, <a href="https://echo.epa.gov/resources/echo-data/about-the-data">About ECHO's Data</a>, <a href="https://echo.epa.gov/tools/data-downloads">Data Downloads</a>

Official Spanish State Gazette open data: laws, summaries and XML/JSON APIs

Open Banking - Payments initiation service

Finance

Open Banking - Payments initiation service

PHP Composer package versions and dist metadata

Collection of axolotl pictures and facts

Netherlands Government Open Data

Shop

Shopping

Search for millions of products from the world's greatest brands.

Orders API

Shopping

Please make sure you use the correct version of the APIs for your use case. To find out the appropriate version, go to the API Docs drop down on the menu.

Citizen-science wildlife observations with species identification and mapping

Git.io URL shortener