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 servicesEmail MX Lookup API
Check whether an email domain has valid MX records. Returns the email, domain, has_mx flag, and record list for deliverability and list hygiene.
Dosvak LLCPhone Carrier Lookup API
Look up a phone number's carrier, region, time zones, and number type. Built for contact validation, call routing, and metadata enrichment.
Dosvak LLCPhone Number Formatter API
Parse a phone number into E.164, international, and national formats. Returns validity plus country and region details for storage and display.
Dosvak LLCCalculate Domain Age API
Look up a domain's WHOIS creation date and its age in days or years. Useful for onboarding checks, fraud review, and SEO enrichment.
Dosvak LLCDomain WHOIS Lookup API
Get a domain's WHOIS record from a single query. Returns the registrar, expiry date, creation date, status, contact emails, and name servers.
Dosvak LLCDetect File type API
Inspect a file's magic bytes to return the filename, extension, MIME type, and description. Built for validating uploads and classifying files.
Dosvak LLCCheck Password Strength API
Score a password by length, complexity, and common-password checks. Returns a score, maximum, level, and per-rule results for signup and reset.
Dosvak LLCCheck Spelling API
Detect misspelled words in text and get correction suggestions. Returns the original input, the misspelled words, and a corrections map.
Dosvak LLCGenerate Fake Address API
Generate 1 to 50 fake street addresses as plain strings. Built for test data, sample forms, and staging datasets without touching real records.
Dosvak LLCCSV & JSON Data Cleaning and Deduplication
Analyze CSV text or JSON records for duplicates and cleanup issues. Set key, required, and numeric columns before loading data into your system.
Validate Schema API
Validate structured data on any URL and retrieve JSON-LD, microdata, meta tags, Open Graph, Twitter cards, and a validation summary.
Detect Spam API
Submit text for spam screening and poll the job for results. Returns a score, a pass flag, and a reason for moderation and comment workflows.
SharpAPIVerifiedWhich Data Validation API do you need?
The question you arrived with, and the endpoint that answers it.