"An email protocol for sending and receiving messages" matching MCP servers:

Enables fuzzy searching and browsing of Slack messages, users, and channels via CLI or MCP server integration.

Autonomous DeFi yield for AI agents on Base. Query APY rates, agent status, payment splits, and referral stats. 4 read-only tools + 1 resource.

Integrates with Mailtrap Email Platform to enable sending transactional emails via API.

Enables AI agents to provision their own email inbox on cooperemail.com, then send, receive, search, and thread real mail, get signed webhooks on delivery, and loop in a human owner who can reply to unblock decisions.

Enables receiving and sending email via IMAP and SMTP across multiple accounts, with tools for listing, searching, reading, replying, and managing messages.

Enables AI coding agents to communicate and coordinate through a durable, vendor-neutral message bus with support for threads, tasks, presence, and webhooks.

Enables sending and receiving email over generic IMAP and SMTP, with tools for searching, reading, drafting, attaching files, managing folders, and waiting for new messages.

Publishes a spending-summary tool alongside an interactive HTML view, letting people click a category in the answer to fetch the individual expense records behind that total. Keeps calculations and their supporting evidence together in a single inspectable flow.

A minimal MCP server for reading, searching, managing, and sending email over IMAP and SMTP.

Enables AI assistants like Cursor and Claude Desktop to compose and send emails directly via Resend's API, supporting plain text and HTML content, scheduling, CC/BCC, and reply-to configuration.

An MCP server that enables interaction with Nexmo's Messages API, allowing agents to send and manage messages across various channels via natural language commands.

Trust, identity, and reputation infrastructure for AI agents. Register agents with W3C DID (Ed25519), check EigenTrust reputation scores, submit peer attestations, search agents by capability, and verify IPFS-anchored audit trails. 11 tools.

A lightweight Model Context Protocol (MCP) server that enables your LLM to validate email addresses. This tool checks email format, domain validity, and deliverability using the AbstractAPI Email Validation API. Perfect for integrating email validation into AI applications like Claude Desktop.

Trust infrastructure for the agent economy.

MCP server for parsing, validating, building and explaining FIX protocol trading messages — offline, no API keys.

Lets AI agents send email over SMTP and read, search, and manage email over IMAP or POP3 using app passwords or authorization codes, with attachment handling and support for common providers.

Connects to wetlab protocol resources such as protocols.io, enabling users to access and manage experimental protocols via natural language.

A Model Context Protocol (MCP) server that enables Claude Desktop to manage emails via SMTP and IMAP. Send emails, fetch unread messages, and create draft replies directly from conversations.

An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.

A Model Context Protocol service for comprehensive email management that supports multiple email providers, with complete functionality for viewing, organizing, and batch processing emails.

Enables sending, listing, and reading email messages via IMAP/POP3 with support for multiple providers, including NetEase, QQ, Gmail, and Outlook.

This MCP server enables users to manage emails via POP3 and SMTP protocols, allowing for listing, searching, reading, and sending messages. It also supports fetching email threads and extracting text content from various document attachments including PDFs and Office files.

A Model Context Protocol server that enables AI models to send emails via simple tool calls, supporting both plain text and HTML formats with JWT authentication.

Enables AI agents and Telegram bots to read and send Gmail messages via MCP with OAuth authentication.

Real-time email verification API with syntax, MX, disposable detection, role-based flags, quality score 0-100. Built for agent outreach pipelines with pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Universal coordination hub for AI agents. Find collaborators, negotiate terms, form contracts, and build reputation through an MCP interface. Supports natural language search across agent networks.

Enables LLM agents to sync and manage IMAP/SMTP mailboxes through a local SQLite cache, covering folder and thread reading, FTS5 search, composing, replying, forwarding, and flag/label organization. Works without credentials for cached reads and supports a CLI tool surface alongside the MCP interface.

An MCP server that receives emails on your domain and allows AI assistants to search, read, and manage them via natural language queries.

Enables sending and receiving emails through SMTP, IMAP, and POP3 protocols with support for attachments, HTML content, and email validation.

An MCP server that connects AI assistants to YNAB budgets, enabling natural language queries about finances backed by full API coverage and built-in YNAB methodology knowledge.