Integrations
Verify where your data lives, from your AI assistant, your code, or your automations.
Available now
Mailchimp, HubSpot and Klaviyo
Connect with an API key, pick an audience or list, and we verify it in the background. The verdicts are written back where the contacts live: undeliverable and risky addresses tagged, and unsubscribed or suppressed if you ask for it.
MCP server (AI agents)
Connect Claude, Cursor, or any Model Context Protocol client and let the AI verify and find emails for you in a chat. Tools: verify_email, verify_emails, find_email, get_credit_balance.
REST API
Verify a single address or a batch, find emails, and run bulk jobs. Plain REST and JSON, authenticated with an API key. Works from any language.
Webhooks
Subscribe to verification, bulk-job, and credit events. Each payload is HMAC-signed so you can trust it. Wire results into anything you already run.
Bulk verification
Upload a CSV of up to 500,000 rows, we process it asynchronously and notify you when the clean list is ready. No code required.
More connectors, rolling out
Mailchimp, HubSpot and Klaviyo are live today. The tools below are next, each connecting the same way: an API key, pick a list, verify, write the result back. Until they land you can already reach every one of them through our REST API or an automation platform.
Email marketing
Coming soonActiveCampaign
Brevo
GetResponse
CRM
Coming soonSalesforce
Zoho CRM
Email sending
Coming soonSendGrid
Mailgun
Mailjet
SparkPost
E-commerce & spreadsheets
Coming soonShopify
Google Sheets
Automation
Coming soonZapier
Make
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How to connect today
- Your email tool: connect Mailchimp, HubSpot or Klaviyo from Integrations in your dashboard, then sync a list.
- AI agent: add our MCP server URL to Claude, Cursor, or any MCP client.
- Developer: call the REST API with your API key, or subscribe to webhooks.
- No code: use our API from your automation platform, native Zapier and Make apps are next.