Find relevant nonprofits by using search terms or search criteria. Generate a list of nonprofits that meet your search criteria then gain a summary of each.
Use the Org ID in the results to get additional data from the Premier API.
Charity Check API
GuideStar Charity Check is the only pre-grant due-diligence tool that is 100% compliant with IRS requirements. We offer this functionality in three different forms. The Charity Check API gives all of the information necessary to verify an organization. The Charity Check Bulk API allows you to verify multiple organizations with one call. Lastly, the Charity Check PDF API allows you to transform the data into a PDF for users to save and file.
GuideStar Premier API
The GuideStar Premier API combines nonprofit-supplied data with data from other sources to provide comprehensive and up-to-date information about millions of organizations.
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