Category
Data Validation APIs
16 APIs, 2 of them with no auth listed. Each one links to its own page with auth, HTTPS, CORS and the official docs.
APIs16
No auth listed13%2 of 16
HTTPS94%
CORS enabled31%
Docs link reachable100%at the last weekly check
All Data Validation APIs
- AttestwireValidate EN 16931 e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BISapiKeyCORS
- invowerkValidate e-invoices (ZUGFeRD, Factur-X, XRechnung, Peppol BIS) and get a validation reportapiKey
Lob.comUS Address VerificationapiKey
Postman EchoTest api server to receive and return value from HTTP methodNo auth
PurgoMalumContent validator against profanity & obscenityNo auth
RevAddressUS address standardization, congressional and state legislative districts, Census data; free tierapiKey- SchemaShieldRead-only preflight for breaking schema changes and downstream query impactapiKey
sthan.io Address AutocompleteReal-time US address suggestions as users typeapiKey
sthan.io Address ParserParse freeform US addresses into structured fields (house number, street, unit, city, state, ZIP)apiKey
sthan.io Address VerificationValidate and standardize US addresses, with ZIP+4 and deliverability statusapiKey- TemsorValidates Turkish national ID, tax number, IBAN, phone, plate and parses addressesapiKeyCORS
US AutocompleteEnter address data quickly with real-time address suggestionsapiKeyCORS
US ExtractExtract postal addresses from any text including emailsapiKeyCORS
US Street AddressValidate and append data for any US postal addressapiKeyCORS
VATlayerVAT number validationapiKey
VerifNowValidates email, phone, IBAN, EU VAT against VIES, and Canadian, Spanish and US national IDsapiKey