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Connect Claude Code, Codex, Cursor, Windsurf, VS Code, and other MCP clients to Nylas email, calendar, contacts, and Notetaker tools across Gmail, Outlook, Exchange, Yahoo, iCloud, and IMAP accounts.

ActiveCampaign's official server that wires Postmark into Claude over stdio, exposing 24 tools for outbound mail, template authoring, message lookup, bounce handling, and suppression list cleanup.

AgentTrust stdio MCP server giving AI agents verified identity with email, instant messaging, and cloud file storage across 19 Ed25519-signed tools.

Official Resend MCP server for giving Claude and other MCP clients controlled access to email sending, received email, contacts, broadcasts, domains, segments, topics, API keys, and webhooks through stdio or Streamable HTTP.

MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/

Generates and sends a comprehensive summary email to the team when session ends.

Manage Courier notifications from Claude — send messages and templates, manage user profiles and preferences, configure notification routing, handle automations and journeys, and manage subscriber lists — with the official Courier remote MCP server.

Manage your Knock notification infrastructure from Claude — create and edit workflows, channels, templates, and email layouts, manage users and tenants, commit changes across environments, and debug message logs — with the official Knock remote MCP server.

Manage Customer.io from Claude — create segments, inspect customer profiles, send broadcasts and campaigns, work with journeys, and access the full Journeys UI and CDP Data Pipelines APIs — with the official Customer.io remote MCP server.

Official remote MCP server for managing Novu notification workflows from Claude: trigger workflows, inspect subscribers, update preferences, debug delivery, and manage notification infrastructure through natural language.

Create useful Gemini-powered Google Workspace automations for docs, sheets, email triage, and internal workflow productivity.

Cross-agent personal network manager skills for Rarefriend — six Agent Skills for contacts, notes, LinkedIn, Google Calendar/Contacts, and Microsoft Outlook email and calendar. Requires Rarefriend MCP.