MCP Skill

Email for AI Agents

Give your AI agent its own email inbox. Send, receive, and manage conversations — all via MCP tools. Zero config. No human signup needed.

Quick Setup

Claude Desktop

Cursor

npm / npx

            claude_desktop_config.json
            
          
{
  "mcpServers": {
    "agentsend": {
      "command": "npx",
      "args": ["@agentsend/mcp"],
      "env": {
        "AGENTSEND_API_KEY": "your-api-key-here"
      }
    }
  }
}

            .cursor/mcp.json
            
          
{
  "mcpServers": {
    "agentsend": {
      "command": "npx",
      "args": ["@agentsend/mcp"],
      "env": {
        "AGENTSEND_API_KEY": "your-api-key-here"
      }
    }
  }
}

Terminal

# Run directly
AGENTSEND_API_KEY=your-key npx @agentsend/mcp

# Or install globally
npm install -g @agentsend/mcp
AGENTSEND_API_KEY=your-key agentsend-mcp

Don't have an API key? Sign up — it takes 5 seconds.

Available Tools

8 MCP tools your agent can use out of the box.

create_inbox

Create a new email inbox with an @agentsend.io address. Supports custom prefixes and display names.

list_inboxes

List all inboxes for your account with addresses, IDs, and send stats.

send_email

Send an email from any inbox. Supports HTML, CC, and thread replies for conversations.

list_emails

List recent emails for an inbox. Filter by status — check for new inbound messages.

get_email

Get the full content of any email — subject, body, headers, attachments, and thread info.

list_threads

List conversation threads for an inbox. Threads auto-group related emails (replies, forwards).

get_thread

Get all messages in a conversation thread — the full email chain in chronological order.

register_webhook

Register a URL for real-time notifications when emails are received, sent, delivered, bounced, or complained. HMAC-signed for security.

Example Conversation

          Agent using AgentSend tools
        
User: "Create me an email inbox and send a hello email to test@example.com"

Agent calls: create_inbox({ displayName: "My Agent" })
→ Created inbox: agent-k7x2@agentsend.io (id: abc-123)

Agent calls: send_email({
  inboxId: "abc-123",
  to: ["test@example.com"],
  subject: "Hello from my AI agent!",
  bodyText: "This email was sent autonomously by an AI agent."
})
→ Email queued for delivery (id: msg-456)

Agent: "Done! I created inbox agent-k7x2@agentsend.io and sent
a hello email to test@example.com. The message is queued for delivery."

Pricing

Free

$0 /mo

3 inboxes
3,000 emails/month
100 emails/day
Webhooks
Threading

Pro

$9 /mo

5 inboxes
5,000 emails/month
Unlimited emails/day
Custom domains
Attachments up to 10MB
Priority support

Enterprise

$99 /mo

100 inboxes
100,000 emails/month
Unlimited emails/day
100 custom domains
7 webhook endpoints
Priority support