SimpleCold

SimpleCold

2 reviews

SimpleCold checks whether an email address can receive mail before you send to it. Every address comes back Deliverable, Risky or Undeliverable with the reason in plain words: mailbox not found, catch-all domain, disposable address, role address, typo (with the suggested fix) or dead domain. No opaque scores. Verify one address, paste a list, upload a CSV (your columns are kept), or use the REST API with single, batch and bulk endpoints, Node and Python SDKs and signed webhooks. AI agents can verify addresses before they send through SimpleCold's MCP server. Built-in integrations clean lists in HubSpot, Mailchimp, Brevo, Instantly, Smartlead and lemlist, and form protection blocks fake and disposable sign-ups at the form. Pricing is pay as you go with no subscription: from $5 per 1,000 checks down to $1.25 per 1,000 at volume. Start with 200 free credits, no card.