MCP For Claude Marketplace
AgentMail

AgentMail MCP Connector for Claude

A+

Give your AI agents their own email inbox to read, send, and reply to messages natively.

11 tools Official Updated Oct 1, 2026 Official Vinkius Partner
More Details Connect to Claude

Connect AgentMail to your AI agent and unlock a programmable email client. Stop relying on complex integrations and grant your agent its own functional inbox to communicate with the world.

What you can do

  • Inboxes — Create, list, and delete custom email addresses on the fly for your agent
  • Threads — Scan active conversations and read full historical threads natively
  • Messages — Send new emails, reply contextually to specific threads, and forward messages
  • Attachments — Extract and process files attached to incoming emails automatically

How it works

  1. Subscribe to this server
  2. Enter your AgentMail API Key
  3. Start managing emails from Claude, Cursor, or any MCP-compatible client

Give your AI the ability to reach out, follow up, and monitor replies autonomously.

Who is this for?

  • AI Developers — build autonomous agents that communicate with users via email
  • Customer Support — deploy agents that read incoming tickets and draft thoughtful replies
  • Sales Automation — let your agent handle outreach and monitor responses automatically
email-apiinbox-automationmessage-threadingprogrammable-emailagent-communication

11 tools expose this connector's capabilities to your AI agent.

list_threads

Returns a list of thread objects including subject lines and recent message previews. The agent needs an inbox_id first. List conversation threads inside an inbox

get_thread

Requires a thread_id. Read all messages inside a specific conversation thread

get_attachment

Attachments might be encoded in base64. Ensure you parse or read it correctly. Download or read a specific attachment from a message

update_message

Update an existing message metadata (like marking it as read)

get_inbox

Get details of a specific inbox by ID

create_inbox

You can optionally link it to a custom domain. Create a new email inbox for an agent

delete_inbox

Warning: this deletes all emails in it. Delete a specific inbox by ID

send_message

Requires the sender inbox_id, which you can get from list_inboxes. Send a brand new email message

reply_to_message

The thread will be preserved. Reply to an existing email message/thread

forward_message

You can optionally add text to the forwarded message. Forward an existing email message

list_inboxes

An inbox is required to send or receive emails. Returns an array of inboxes with their IDs, email addresses, and names. List all inboxes assigned to the AgentMail API Key

See how to talk to your AI agent using AgentMail.

Create a new inbox for our support team.

I have created a new inbox with the address support-agent-123@agentmail.to. It is now active and ready to receive messages. Would you like me to configure an automated welcome reply?

Check all my unread threads in the main inbox today.

You have 2 unread threads. The first is an inquiry from a prospective client asking for pricing details. The second is a generic marketing email. Would you like me to draft a contextual reply for the client?

Reply to the client thanking them and attach the pricing PDF.

The email has been successfully sent. I replied directly to the client's thread, thanked them for their interest, and included the 'Pricing_2024.pdf' attachment as requested.

No. AgentMail is entirely standalone. You can use your agent to programmatically provision brand new, unique email addresses in seconds, completely independent of legacy email providers.

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