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ProPublica Nonprofit Explorer API

The ProPublica Nonprofit Explorer API provides an application programming interface to the search engine and database that powers Nonprofit Explorer.

The Nonprofit Explorer includes data on 1.6 million nonprofits, including the name, location, and category of each organization.

When available, the API returns data from nonprofit tax returns processed by the IRS during the 2012-2015 calendar years. This information -- available for more than 750,000 organizations -- generally consists of filings for the 2011-2014 fiscal years, but may include older records. The IRS data release includes only a subset of what can be found in the full Form 990s.

ProPublica has linked to PDFs of full Form 990 documents wherever possible, consisting of a separate release by the IRS of Form 990 documents processed by the agency through June 2016 (these documents may contain filings as recent as the 2015 fiscal year.)

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations (those with less than $50,000 in revenue) that file a Form 990N "e-Postcard" are not included in this data.

No API key is required, but commercial users should contact ProPublica.