"Email" matching MCP servers:

A stdio MCP server exposing a validate_emails tool that lets agents screen email lists without sending mail or probing SMTP, checking syntax, DNS/MX records, disposable domains, role accounts, free providers, typo suggestions, and SPF/DMARC. Each address comes back with a valid/risky/invalid/unknown verdict plus machine-readable reason codes so agents can clean leads and signups before outreach or import.

Enables finding and verifying work emails for contacts through a waterfall of provider keys, with per-provider cost attribution and verification after each finder.

Enables enrichment of company domains with verified firmographic signals including tech stack, hiring activity, email infrastructure, and SOC 2 compliance, returning compact typed JSON for AI agents.

An MCP server that integrates with Hunter.io API to find and verify email addresses using domain and name information.

DATPAQ exposes 34 production data & utility APIs — IP geolocation, DNS/WHOIS/MX lookups, email & phone validation, currency & precious-metals rates, aircraft/VIN lookups, web scraping & screenshots, and more — through one hosted, streamable-HTTP MCP endpoint.

Enables AI assistants to validate email addresses, track validation tasks, view per-address results and account analytics, and export cleaned email lists through the UChecker API.

About MCP server exposing 10 APITier utility APIs as AI agent tools — email/phone/VAT validation, UK postcodes, India pincodes, barcode/QR generation, data conversion

Enables AI assistants to run a GTM lead pipeline that scrapes sources, applies ICP gates to disqualify leads, checks email deliverability, and requires human approval before any lead is marked qualified.

Provides MCP clients with 60+ APIs for B2B data enrichment, lead generation, email verification, company intelligence, and agentic GTM workflows.

MCP server for verifying B2B contact records via email syntax and DNS/MX checks, serving verified data with per-tenant isolation.

Enables LLM-friendly Markdown conversion from 24+ document formats (Office, PDF, email, images, archives, code) via MCP, with OCR, content sniffing, and safe handling of hostile inputs.

MCP server exposing 29 AI-powered Interzoid data quality APIs — company/name/address matching and deduplication, business intelligence, email trust scoring, data standardization, verification, translation, and more. Supports API key authentication and x402 crypto micropayments.

Enables an AI agent to verify a single email address in real time, clean an entire uploaded list file with per-address verdicts, and download the results as CSV with the addresses that are safe to send to. It runs on npm with zero dependencies and includes built-in credit reporting and spending limits so agents cannot overspend without approval.