OrgHunter Charity API

Turn your ideas into donations. The OrgHunter Charity API is the data and infrastructure layer behind modern giving experiences — powering charity search, real-time vetting, local giving, financial transparency, and grant processing for platforms around the world.

Developers get instant access to over 2.5 million U.S. charities (plus tens of thousands of Canadian organizations) with more than 100 data points per nonprofit — far beyond basic IRS datasets. More than 1,500 technology platforms, websites, and mobile apps rely on OrgHunter every day to keep their charitable experiences accurate, compliant, and engaging.

Get Your OrgHunter API Key View Charity API Documentation

Questions? Email [email protected]

Why OrgHunter’s Charity API

OrgHunter was built to deliver what developers truly need but can’t get from basic IRS downloads: current, deeply enriched charity data, real-time eligibility checks, and ready-made donation workflows.

  • Access a comprehensive database of 2.5M+ nonprofits with rich profiles, missions, and attributes.
  • Perform real-time charity vetting and eligibility checks far beyond IRS Pub 78 lists.
  • Power "give local" experiences with geolocation and mapping-ready data.
  • Deliver financial transparency with data parsed from Form 990 for informed giving.
  • Connect data to action with integrated grant processing via Make My Donation, Inc. and Stripe Connect.

Ideal for donation apps, fintech, CSR platforms, loyalty programs, memorial donation sites, and more.

Built for Developers, Loved by Product Teams

CharityAPI.com is the dedicated developer hub for the OrgHunter Charity API, with documentation, examples, and live testing tools designed to get you from idea to production quickly.

  • RESTful JSON APIs with clean, predictable schemas and clear status codes.
  • Live Active Docs via 3scale — test endpoints and inspect real JSON responses with your key.
  • Frequently updated data (daily or better) so your app always works with current information.
  • Modular endpoints (basic, financial, premium, geo, NTEE) so you only request what you need.
  • Direct support at [email protected] for integration questions.
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Core OrgHunter Charity API Methods

The OrgHunter / CharityAPI endpoint suite lets you start simple and grow into deeper use cases without changing providers. Each method is documented in detail on CharityAPI.com.

Charity Search Summary

Search IRS-registered nonprofits using flexible filters like name, location, cause, or status. Ideal for building search bars, browse pages, and "typeahead" experiences that help users quickly find charities that match their interests.

NTEE Classification

Use the National Taxonomy of Exempt Entities (NTEE) categories to organize charities into meaningful cause areas. Perfect for faceted search, category pages, and cause-focused campaigns.

Charity Basic

Retrieve essential details about a specific nonprofit via EIN, including IRS status, name, address, and key profile data — often enough for a complete donor-facing view in a single call.

Charity GeoLocation

Power "near me" and mapping experiences by searching charities by latitude/longitude, city, state, or ZIP. Ideal for local giving, event-based campaigns, and community impact programs.

Charity Financial

Pull detailed financial information parsed from the latest Form 990 filings to support financial transparency, dashboards, and due diligence inside your application.

Charity Premium

Combine rich financials, geographic data, and status details into a single, comprehensive response. Ideal for advanced analytics, AI workflows, and high-end donor experiences.

Explore API Methods on CharityAPI.com Read Implementation Guides & Use Cases

AI, ML & Data Science with OrgHunter

OrgHunter’s structured charity data is ideal for powering AI assistants, recommendation engines, and advanced analytics. Use the Charity API as a clean, authoritative source in your AI stack.

AI Assistants & RAG
  • Ground LLMs in verifiable charity data to answer questions like "Which charities support mental health near me?".
  • Use EINs as stable IDs in your knowledge graph, CRM, or internal data warehouse.
  • Feed JSON responses directly into retrieval-augmented generation (RAG) and agent pipelines.
Recommendations & Risk Models
  • Combine charity attributes with donor behavior to recommend causes aligned with their interests.
  • Use eligibility flags and revocation status as features in risk, compliance, and screening models.
  • Build embeddings or cluster charities by mission, geography, and category for advanced analytics.

For data licensing, bulk exports, or dedicated AI integrations, please contact the OrgHunter team.

Getting Started — Charity Search & Donations

Contact [email protected] with any support questions

Quick Start Checklist

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