Candid
Candid (formed from the 2019 merger of Foundation Center and GuideStar) helps social sector organizations advance their missions by sharing information, breaking down barriers, and improving giving. Candid maintains the most comprehensive set of data on U.S. nonprofits, foundations, grants, and philanthropy, and exposes that data through a family of developer APIs — Essentials, Premier, Charity Check, Demographics, Grants, News, Taxonomy, Eligibility, and PDF/Bulk variants — available through the Candid Developer Portal.
APIs
Candid Essentials API
Core nonprofit search and lookup. Provides fast search over Candid's database of U.S. nonprofits by name, EIN, location, NTEE code, size, and more. Returns summary records suita...
Candid Premier API
Deep nonprofit profile data. Returns comprehensive records for a given organization including financials, programs, leadership, board, grants received and awarded, operating det...
Candid Charity Check API
Real-time nonprofit verification and compliance screening used for due diligence, donation compliance, and tax-deductibility checks. Returns IRS 501(c)(3) status, revocation his...
Candid Demographics API
Structured demographic data voluntarily provided by nonprofits about their staff, board, and populations served. Enables funders and platforms to analyze equity, diversity, and ...
Candid Grants API
Access to Candid's global grants dataset — summary statistics, funders, recipients, and individual transaction records. Useful for philanthropic benchmarking, funder research, a...
Candid News API
Search and retrieve philanthropic news content from Candid's curated news database covering funders, grantees, sector trends, and policy. Supports customizable parameters for da...
Candid Taxonomy API
Returns Candid's philanthropic classification system (subject, population, support-strategy, and geographic area taxonomies) so integrators can consistently tag and query nonpro...
Candid Nonprofit Eligibility API
Evaluates whether a given nonprofit is eligible to receive a grant or donation based on configurable rules — IRS status, country, OFAC, custom program criteria — to automate gra...