> /v1/apis/category/data-validation
Free Data Validation APIs[011]
11 free public APIs in the Data Validation category — 3 require no authentication, 10 support HTTPS, 6 have CORS enabled.
API Adresse
Official French address validation service
Brevo Suit
Connection for brevo CRM suite
Lob.com
US Address Verification
Nonprofit Check Plus
Verify charities via EIN using IRS, PUB78, BMF & OFAC data for compliance and legitimacy
Postman Echo
Test api server to receive and return value from HTTP method
PurgoMalum
Content validator against profanity & obscenity
US Autocomplete
Enter address data quickly with real-time address suggestions
US Extract
Extract postal addresses from any text including emails
US Street Address
Validate and append data for any US postal address
Validate UK Postcodes
This API validates postal codes within UK
VatcheckAPI
VAT Number Validation & Lookup REST API
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What are the best free Data Validation APIs?
The directory tracks 11 free public Data Validation APIs. Top picks include API Adresse, Brevo Suit, Lob.com, Nonprofit Check Plus, Postman Echo — see the full list above, all free to use.
Are there free Data Validation APIs without authentication?
3 of 11 Data Validation APIs require no authentication and can be used immediately without an API key.
Do these APIs support HTTPS?
10 of 11 Data Validation APIs support HTTPS.