Verify Email

About Verify Email

Verify Email is an email-verification API that sits in front of a signup form or a campaign send and answers, per address, whether it is worth accepting. A single POST returns deliverability, whether the address is disposable or temporary, whether it is a privacy relay including Apple's Hide My Email, whether the domain is catch-all, whether MX records resolve, and a policy decision on whether to block. Beyond validation it exposes deterministic policy controls — a blacklist API that blocks named addresses and domains directly in the API response, and a whitelist API that enforces allow-only registration for approved addresses or domains — so the accept/reject rule lives in one place instead of being reimplemented in every client. A batch endpoint takes up to 100 inputs per call for list cleaning, and the rate limit is a published 15 requests per second on every tier including free. What makes it unusually relevant to an AI-tooling audience is a first-class MCP server: the same verification is callable from Cursor, Claude Desktop, n8n and any other MCP-compatible agent, so an agent cleaning a lead list does not need a bespoke integration. Free browser-based checkers for disposable addresses and general validity sit alongside the API, and the site is published in multiple languages.

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