Kickbox helps developers, agencies, enterprises, marketers, non-profits and others verify email addresses to improve deliverability and prevent invalid sign-ups. It analyzes email lists or validates addresses in real-time using an API, flagging risky or incorrect emails and integrating with existing email marketing tools.
Stop stacking subscriptions. Call every data provider - emails, phones, enrichment, intent - from Claude Code, billed by credits, on a single API key.
Free to start. No credit card required.
Stop managing 39 tools. Ship GTM from Claude Code with ColdIQ.
Get startedKickbox is recommended for anyone who needs to keep their email data clean and deliverable. It helps businesses like EGO and others reduce bounce rates and improve email delivery with fast, reliable, and accurate email verification.
Kickbox offers flexible email verification pricing starting at $5 for 500 verifications, scaling up to $4,000 for 1,000,000 verifications, with custom pricing available beyond that. Unverifiable emails are free to verify again or use credits on another email, and volume discounts apply for high senders. All plans include GDPR-compliant service, first-class support, and no charges for unknown verification results.
Don't want a Kickbox subscription?
Get Kickbox and your whole GTM stack from one API key with ColdIQ.
Kickbox implementation is quick and easy, requiring basic configuration like adding a snippet or connecting accounts, which can be done solo in minutes. Simply sign up, configure your email verification settings, and start cleaning your email lists for better deliverability.
Kickbox
