The U.S. Cluster Mapping Project has built an API to provide public, developer-friendly access to the curated and continuously updated data archive on the U.S. Cluster Mapping website.  The API is publicly accessible using HTTP requests and returns JSON data.

The vast majority of content on this website has been contributed by federal data sources.  We owe it to the community to make data more accessible and reusable, so that developers can build tools that increase exposure for valuable content and facilitate analysis for better decisions.

We’d love to hear from you.  Contact us at cmp@hbs.edu to let us know about what you are building or if you have any feedback, usage questions or suggestions about the API.

Making Requests

The base URL of the API is:

http://clustermapping.us/data/

All data contained by the clustermapping.us site is available in JSON format at this URL.

Since the API uses basic HTTP requests, you can browse through the API methods and content with a web browser. By using a browser extension like JSONView for Chrome (here) or Firefox (here), the JSON will be formatted for readability and URLs rendered as links.

There are several parameters that can be supplied for discovering and accessing the data you are looking for that are detailed below.

Field ID Key

ClusterMapping-API-Docs_1.pdf