BillionVerify
An email verification service for sales and marketing teams that clean lists and check addresses before sending.
Where to buy
1 offerPlans on AppSumo
Details
- Works on
- Web app (SaaS)
- Alternative to
- Hunter.io, ZeroBounce
- Best for
- Agencies, Marketers
- Integrates with
- Claude, HubSpot, Mailchimp, MCP, n8n, Salesforce, Webhooks, Zapier
- For agencies
- API access
Why it's good
- Single-address checks and CSV list cleaning
- Real-time API with Python, Node.js, Go, and PHP SDKs
- Detects disposable, role-based, and catch-all addresses
- MCP Server integration for Claude and Cursor
- Credits do not expire; plan limits vary
BillionVerify checks individual email addresses and cleans uploaded lists using SMTP verification. It returns verification details, supports CSV uploads and export-ready segments, and offers a real-time API for signup or checkout flows. Detection includes disposable addresses, catch-all domains, role accounts, and spam traps. SDKs are available for Python, Node.js, Go, and PHP, with an MCP Server for Claude and Cursor.
The plans differ in credit allocation, daily limits, and other usage allowances, so check the plan limits before choosing. The deal provides lifetime access, and codes must be redeemed within the stated redemption window. AppSumo’s refund window applies, but the product is not covered by its “We Got Your Back” guarantee.
