"address validation" matching MCP servers:

Email validation MCP server using MailboxValidator API to determine validity of an email address.

Provides email validation and domain configuration auditing tools for AI assistants, enabling single address checks, bulk list cleaning, SPF verification, and full mail setup grading (A-F) with actionable fixes.

Enables email address verification through a single MCP tool, returning whether an address is valid, invalid, or risky.

Provides an AI agent with its own email address to send, receive, and manage emails via MCP. No email server setup required.

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.

Provides a hosted remote MCP server that lets AI agents create and use their own email address to send, receive, verify, and reply to messages.

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.

Enables email address validation and outbound email status checking for the Xeams on-premise email server via MCP tools.

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.

MCP server that enables AI agents to check if email addresses or domains are disposable using the isitdisposable.com API. It provides tools like check_email, check_domain, and check_batch for real-time validation.

Gives AI agents their own email address with inbound parsing, classification, extraction, and prompt injection screening, plus tools to manage mailboxes, send/receive emails, and handle draft approval workflows.

Giggal.ai is an email verification tool that runs a deep mailbox existence check on every address and verifies catch-all/accept-all and even SEG protected emails. Your bounce rate stays under 5%, and the 30% of every B2B list that other tools flag as "Risky" becomes deliverable again.

MCP server that gives an AI agent a throwaway test identity — a real disposable email address and a real UK phone number — so it can sign up for something it's testing and read back the verification email/SMS itself, without a human in the loop.

A native MCP server for real-time B2B contact finding and SMTP email validation, scraping company websites, Discord, and Telegram to deliver live, verified contacts that AI agents like Claude and Cursor can query directly.

Email validation and SMTP verification for Claude Desktop, Cursor, and Claude Code

Enables AI assistants to verify single email addresses and bulk lists of up to 1,000 addresses in real time, checking RFC 5322 syntax, DNS MX records, disposable providers, role accounts, and typos, with an optional deep SMTP mailbox handshake. Bulk runs handle partial-quota situations gracefully.

MCP server for emailfinder.dev that enables AI assistants to find verified professional email addresses via name/domain, LinkedIn URLs, company domains, roles, and email validation.

Provides AI agents with a real email address to send, receive, and manage emails via the Envoi.work platform. It enables seamless email communication, including inbox management and threaded replies, directly within MCP-compatible clients.

Enables AI agents to manage mailing lists and contacts, read campaign reports with per-link clicks, and trigger automations. Supports lookups and updates by email address, tag and status management, and destructive operations with client confirmation.

Enables Claude and other MCP clients to read, write, validate, activate, and manage server-side mail filtering rules over ManageSieve. It provides safe updates with validation, dry-run diffs, backups, and shared encrypted account configuration.