API archive entry · source-reported
SpryTools Email Validation
Syntax + MX + disposable/role-based email validation
Other Data Validation APIs
These records share a directory category and are ordered by similarity of reported access facts. They are a shortlist, not proof of drop-in compatibility.
Lob.com
US Address Verification
API key · HTTPS reported · CORS Unknown
SchemaShield
Read-only preflight for breaking schema changes and downstream query impact
API key · HTTPS reported · CORS Unknown
VATlayer
VAT number validation
API key · HTTPS reported · CORS Unknown
DataScreenIQ
Screen data for schema drift, type mismatches, and null rate anomalies
API key · HTTPS reported · CORS Yes
Kiprio Email Validation
Email address validation with MX, disposable, role and typo detection
API key · HTTPS reported · CORS Yes
Trestle
Validates the phone number and provides phone metadata
API key · HTTPS reported · CORS Yes
How to compare them
Coverage
Compare exact endpoints, fields, geography, history, and update frequency.
Operating cost
Model request volume, caching, overages, support, and migration cost.
Integration risk
Test auth, errors, pagination, latency, versioning, and outage behavior.
Data rights
Review attribution, redistribution, retention, privacy, and commercial-use terms.
Source reference
This page separates source-reported facts from questions that need live provider verification.