Instantly export cleaner
Clean Instantly lists before the next campaign
Run Verifly before importing or reusing Instantly lists so campaign audiences are checked for invalid, disposable, and risky mailboxes first.
Check a campaign batchAPI
curl -X POST "https://verifly.email/api/v1/verify/bulk" \
-H "Authorization: Bearer vf_your_api_key" \
-H "Content-Type: application/json" \
-d '{"emails":["lead1@example.com","lead2@example.com"]}'Real-time SMTP mailbox checks
Single, batch, and async bulk verification
Disposable, role account, and catch-all detection
Pay-as-you-go credits with no subscription lock-in
Search fit
Built for clean Instantly export searches
Use Verifly when you need a simple API, predictable pricing, and clean JSON results before emails hit your product, CRM, or campaign tool.
Verify Instantly campaign lists before sending
Clean stale exported leads before a new sequence
Screen catch-all, role, and disposable results before upload
Use batch checks for campaign-sized CSV files
Related guides
Cheap email verification APIBulk email verification APIEmail API for developersEmail list cleaning APICold email list verificationValidate signup emailsApollo email verificationClay email verificationInstantly email verificationSmartlead email verificationn8n email verificationMake email verificationZapier email verificationCSV email verificationGitHub Action email verificationPipedream email verificationGoogle Sheets email verificationHubSpot email verificationSupabase email verificationNext.js email verificationEmail verification templatesClean HubSpot exportClean Apollo exportClean Instantly exportClean Smartlead exportClean Google Sheets email listEmail list deduplicatorEmail typo fixerDisposable email checkerAPI playground