We just launched the Nonprofit Check Plus API — a fast, lightweight, and developer-first alternative to GuideStar’s API for verifying U.S. nonprofits.

Why we built it:

GuideStar’s API is powerful but overkill (and overpriced) for many use cases. It's not self-serve, takes days to access, and locks basic nonprofit data behind enterprise pricing.

So we created Nonprofit Check Plus to offer a more accessible option: • Real-time nonprofit status checks • Free tier with generous usage • No attribution required on paid plans

We aggregate data from: • IRS Business Master File (BMF) • IRS Pub 78 (deductibility) • IRS 990 filings (core EIN/filing data) • IRS AROE (Automatic Revocation of Exemption List) • OFAC Sanctions list (compliance risk)

Popular use cases: • Donation or grant platforms verifying nonprofits • Compliance/KYC checks for fiscal sponsors • Marketplaces or apps that surface nonprofits • CRM or accounting tools that store EINs

Compared to GuideStar: • Faster onboarding (minutes, not days) • Simpler pricing (starts free, no contracts) • Smaller footprint for integrations • Built for developers, not enterprise gatekeeping

Try it out: https://pactman.org/nonprofitcheckplus-api/landing

Would love your thoughts or feedback — especially if you’ve tried to integrate with Guidestar/Candid before. AMA.