VATlayer
VAT number validation
Data Validation · API key · HTTPS
Data Validation APIs
10 API records with directory-reported descriptions, access facts, and source links.
Attestwire
Validate EN 16931 e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS
Data Validation · API key · HTTPS
Lob.com
US Address Verification
Data Validation · API key · HTTPS
Postman Echo
Test api server to receive and return value from HTTP method
Data Validation · No auth · HTTPS
PurgoMalum
Content validator against profanity & obscenity
Data Validation · No auth · HTTPS not confirmed
SchemaShield
Read-only preflight for breaking schema changes and downstream query impact
Data Validation · API key · HTTPS
Temsor
Validates Turkish national ID, tax number, IBAN, phone, plate and parses addresses
Data Validation · API key · HTTPS
US Autocomplete
Enter address data quickly with real-time address suggestions
Data Validation · API key · HTTPS
US Extract
Extract postal addresses from any text including emails
Data Validation · API key · HTTPS
US Street Address
Validate and append data for any US postal address
Data Validation · API key · HTTPS