BillionVerify

The tool provides real‑time email verification designed for integration with AI agents and automated workflows. It offers a native MCP server for Claude, a pipeline component for LangChain, and a RESTful API that returns structured JSON with SMTP status, MX records, and deliverability scores. Users can validate individual addresses, process bulk CSV files with live progress tracking, or embed verification calls into signup flows, lead enrichment, and custom pipelines.

It targets developers and teams that build AI‑driven applications, as well as sales, marketing, and agency users who need to clean and maintain large contact lists. Features include bulk list cleaning with exportable segments, a white‑label portal for branded verification services, and support for any data source such as scraped directories or purchased lead databases.

The service emphasizes high accuracy, reporting 99.9 % verification correctness while processing billions of emails at a low cost per verification. It is positioned as an experimental, AI‑first solution for improving email deliverability across diverse workflows.