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Should I use CharityAPI?

Simple REST API for data about US nonprofits - charityapi.org

Worth it. Buy it if your app, platform, or AI agent needs to verify US nonprofit status by EIN — it's cheap, simple, and has a free tier. Skip it if you're a nonprofit looking for donor management; it's a data API, not a CRM.

Confidence

Medium. Based on 16 public sources; few independent user reviews found.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support evidence in sources
  • Security postureSecurity pages exist, no findings reported

Pricing

$0

Free tier

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
PaidFrom $20/mo per user (per third-party listings)

Best for

  • Developers embedding charity verification
  • Donation platforms checking EIN/tax status
  • Grantmakers screening US charities
  • AI agents needing nonprofit lookups

Not for

  • Nonprofits wanting donor management — this is an API, not a CRM
  • Non-technical teams; no UI without a developer
  • Anyone needing international charity data — US nonprofits only
  • One-off manual lookups — free IRS/ProPublica tools cover that

Gotchas - check before you buy

medium

Listings show $20/mo per user — unusual for an API; confirm real pricing and per-call limits.

medium

Two domains: and OrgHunter's. Confirm which vendor you're actually buying.

low

Free tier exists, but request limits and overage costs aren't clear from public sources.

low

Guess: IRS-sourced data may lag for newly registered charities.

Pros and cons

Pros

  • Free tier advertised for basic use
  • Data on ~2 million US public charities, searchable by EIN
  • Repeatedly described as a simple REST API for US nonprofit data
  • Can verify EIN and tax status instantly
  • Offers agent-friendly endpoints for AI workflows

Cons

  • US-only coverage; no international charity data
  • Small API surface — just 3 operations exposed
  • No standalone product UI; requires developer work
  • Sparse independent user reviews in public sources

Sources & method

Analyzed 10/05/2026 - 12 sources - No known vulnerabilities found in the sources reviewed.

official x2review x9security x1

Key stats

  • Value for money: 4/5

    Rating

  • $0

    Starting price

  • 12

    Sources

  • Analyzed

  • Value for money: 4/5. Free tier, low listed starting price
  • Ease of use: 4/5. Repeatedly described as a simple REST API
  • Feature depth: 3/5. Only 3 operations; US-only data
  • Support quality. No support evidence in sources
  • Security posture. Security pages exist, no findings reported
  • $20/mo Starting price per user, per third-party listings
  • Yes Free tier advertised in comparison listings
  • ~2M Charity coverage US public charities with EINs
  • 3 endpoints API surface operations exposed, incl. AI agent access

Pricing

Free tier

$0

  • Basic nonprofit lookups
  • Request limits not publicly documented

Paid

From $20/mo per user (per third-party listings)

  • Full US charity data access
  • EIN and tax-status verification

Security

No known vulnerabilities found in the sources reviewed.

What users say

user feedback is thin; directories describe it as a straightforward API for US nonprofit data, and one comparison site calls OrgHunter's version a solid choice for developers.

Companies that use it

  • DAF Connect10
Full analysis

Based on 16 public sources; few independent user reviews found.

Cheap, simple API for US charity EIN/tax verification. Buy if you're a developer; useless if you want a nonprofit CRM.

Methodology

Based on 16 public sources; few independent user reviews found.

Sources

  1. CharityAPI.org Reviews in 2026sourceforge.net
    review
  2. CharityAPI.org vs. Donorlytics Comparisonsourceforge.net
    review
  3. CharityAPI.org vs. Fundraising Report Card in 2026slashdot.org
    review
  4. Charityapi | APIs.io Providersapis.io
    review
  5. Charityapi Agentic Accessapis.io
    review
  6. Tax ID Lookup Nonprofit: A Practical Verification Guidetaxid.dev
    review
  7. Nonprofit Financial Commons forum — verification optionsnonprofitfinancials.org
    review
  8. OrgHunter VS Engaging Networks — Saashubsaashub.com
    review
  9. Charity Donations API for E-Commerce Developersthegoodapi.com
    review
  10. DAF Connect developer documentationdaf-connect.com
    official
  11. CharityAPI product security pagecharityapi.org
    official
  12. Charityapi Domain Securityapis.io
    security

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