Data Validation APIs.
A validation API answers one question per field: is this real, and is it well formed. Emails, phone numbers, VAT and IBAN numbers, postcodes — checked against live registries and format rules before the bad record reaches your database.
Also called a verification API, data quality API or data cleansing API45 services in this categoryData Validation APIs
45 servicesAdvanced Email Verification API
Verify an email address from a single query parameter and get a response with a code and success flag. Built for signup checks and list cleanup.
AML & Sanctions Verification API
Check a name against sanctions and AML screening data, with optional date of birth, country, and result limit filters. Returns a success flag.
BIN IP Checker API
Check a card BIN against an IP address and get a response envelope with a success flag and code. Useful for fraud checks and payment routing.
BIN Lookup API
Look up a card BIN from a single query parameter and get issuer details in a success envelope. Useful for payment routing, analytics, and fraud.
Company KYB Lookup API
Verify companies by LEI, VAT, name, and country. Returns a JSON envelope with success status and lookup results for KYB and onboarding checks.
Identity & Fraud Verification API
Validate IP, BIN, DOB, VAT, IBAN, email, phone, address, and more in a single request. Built for onboarding, risk checks, and pre-validation.
Search & Filter BIN Database API
Search BIN records by bank, brand, country, prefix, level, or card type. Returns a response envelope with a success flag, code, and module blocks.
US Routing Number Lookup API
Look up a US bank by its 9-digit routing number. Use it to validate payment details and retrieve the matching bank record before processing.
Dosvak LLCUS Routing Number Validation API
Validate a 9-digit US routing number from a query parameter. Use it to reject invalid bank details before ACH transfers or payment processing.
Dosvak LLCValidate IBAN Checksum API
Validate an IBAN checksum from a query parameter and catch invalid bank account numbers before payments, payouts, or onboarding.
Dosvak LLCDisposable Email Checker API
Check whether an email uses a known disposable domain. Returns the email, domain, and a disposable boolean for signup gating and fraud filtering.
Dosvak LLCEmail Deliverability Score API
Check an email for syntax, MX records, and disposable domains. Returns a score, quality level, and boolean checks to filter bad addresses early.
Dosvak LLCWhich Data Validation API do you need?
The question you arrived with, and the endpoint that answers it.