GuideStar is an information service that reports on IRS-registered nonprofit organizations in the U.S. Their database provides information about each company's finances, impact, governance, reputation, programs, legitimacy, mission, etc.
The GuideStar Search API enables searching of GuideStar's data sets about the nonprofits to find the information that is most relevant to user needs. Those results can then be used to get further data from GuideStar's other APIs.
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