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What are the best Nonprofit Check Plus alternatives? (2026)

The top alternative to Nonprofit Check Plus is API Adresse, followed by Brevo Suit and Lob.com. We compared 11 Data Validation APIs you can use instead of Nonprofit Check Plus.

Looking for alternatives to

Nonprofit Check Plus

Verify charities via EIN using IRS, PUB78, BMF & OFAC data for compliance and legitimacy

apiKeyHTTPS
Best Data Validation APIsCompare all Data Validation APIs

What Data Validation APIs can replace Nonprofit Check Plus?

11 APIs

API Adresse

Official French address validation service

No AuthHTTPS

Brevo Suit

Connection for brevo CRM suite

apiKeyHTTPSCORS

Lob.com

US Address Verification

apiKeyHTTPS

Postman Echo

Test api server to receive and return value from HTTP method

No AuthHTTPS

PurgoMalum

Content validator against profanity & obscenity

No Auth

US Autocomplete

Enter address data quickly with real-time address suggestions

apiKeyHTTPSCORS

US Extract

Extract postal addresses from any text including emails

apiKeyHTTPSCORS

US Street Address

Validate and append data for any US postal address

apiKeyHTTPSCORS

Validate UK Postcodes

This API validates postal codes within UK

apiKeyHTTPSCORS

VatcheckAPI

VAT Number Validation & Lookup REST API

apiKeyHTTPSCORS

VATlayer

VAT number validation

apiKeyHTTPS

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