API archive entry · source-reported
B2B Email & Domain Scorer
Email verification: MX, disposable/free/role detection, typo fix and a keep/fix/drop action
Other Email 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.
Sendinblue
A service that provides solutions relating to marketing and/or transactional email and/or SMS
API key · HTTPS reported · CORS Unknown
RankFabrik Verify
Validate email addresses for deliverability, syntax and disposable detection
API key · HTTPS reported · CORS Unknown
Atomic Mail
Email for AI agents: programmatic inbox creation and send/receive over JMAP
API key · HTTPS reported · CORS Unknown
ImprovMX
API for free email forwarding service
API key · HTTPS reported · CORS Unknown
mailboxlayer
Email address validation
API key · HTTPS reported · CORS Unknown
MailboxValidator
Validate email address to improve deliverability
API key · HTTPS reported · CORS Unknown
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.