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 API54 services in this categoryData Validation APIs
54 servicesCalculate 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 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.
Email and IP Risk Analyzer
Score an email and IP pair for abuse risk. Returns a verdict plus checks for DNS, typo-squats, disposable domains, Gravatar, and proxy ports.
Validate Schema API
Validate structured data on any URL and retrieve JSON-LD, microdata, meta tags, Open Graph, Twitter cards, and a validation summary.
Extract Contact Information API
Extract emails, phones, addresses, and social links from any webpage URL. Built for lead enrichment, site audits, and contact data validation.
Detect Email Address API
Extract email addresses from any block of text with an async job flow. Submit the content, then poll for an array of detected email strings.
SharpAPIVerifiedDetect Phones Numbers API
Detect phone numbers inside free-form text and poll the job for parsed_number and detected_number results. Built for cleanup and validation.
SharpAPIVerifiedDetect 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.
SharpAPIVerifiedValidate File Type API
Validate uploaded files or file URLs against their extension and MIME type. Returns the detected type, a validity flag, and a mismatch message.
ApyHubVerifiedHosted on ApyHubValidate UK Postcodes API
Validate a UK postcode from your code and get a true or false back in one request. Built for checkout, signup and address cleanup. Free tier, no card.
ApyHubVerifiedHosted on ApyHubWhich Data Validation API do you need?
The question you arrived with, and the endpoint that answers it.