Data Validation¶
10 free Data Validation APIs — auth type, HTTPS and CORS support for each, so you can pick the right one without opening every docs page.
| API | Description | Auth | HTTPS | CORS |
|---|---|---|---|---|
| VATlayer | VAT number validation | apiKey |
Yes | Unknown |
| Attestwire | Validate EN 16931 e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS | apiKey |
Yes | Yes |
| Lob.com | US Address Verification | apiKey |
Yes | Unknown |
| Postman Echo | Test api server to receive and return value from HTTP method | No | Yes | Unknown |
| PurgoMalum | Content validator against profanity & obscenity | No | No | Unknown |
| SchemaShield | Read-only preflight for breaking schema changes and downstream query impact | apiKey |
Yes | Unknown |
| Temsor | Validates Turkish national ID, tax number, IBAN, phone, plate and parses addresses | apiKey |
Yes | Yes |
| US Autocomplete | Enter address data quickly with real-time address suggestions | apiKey |
Yes | Yes |
| US Extract | Extract postal addresses from any text including emails | apiKey |
Yes | Yes |
| US Street Address | Validate and append data for any US postal address | apiKey |
Yes | Yes |
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