getpoststack/mcp

Overview

An MCP server that wraps the PostStack Email API, exposing 84 tools, 5 prompts, and 5 resources for AI agents. It enables agents to send, receive, and manage emails programmatically through the Model Context Protocol.

Best for

Best for
Developers building AI agents that need to send, receive, or manage email through the PostStack API.

Use cases

• Automate email sending and receiving from AI agents
• Integrate email workflows into agentic applications
• Manage email resources like threads and attachments via MCP

How to use

Install

npx @poststack.dev/mcp --print-config claude-desktop

Tools exposed

• send_email
• send_batch_emails
• list_emails
• get_email
• cancel_email
• reschedule_email
• lint_email
• preview_email
• validate_email
• validate_email_batch
• create_contact
• list_contacts
• get_contact
• update_contact
• delete_contact
• unsubscribe_contact
• get_contact_by_email
• get_contact_activity
• get_engagement_summary
• search_contacts

Clients listed in this record (not verified here)

Claude Desktop, Claude Code, Cursor, Windsurf, Continue, VS Code

Example client config

{
  "mcpServers": {
    "poststack": {
      "command": "npx",
      "args": [
        "-y",
        "@poststack.dev/mcp"
      ],
      "env": {
        "POSTSTACK_API_KEY": "sk_live_your_api_key_here"
      }
    }
  }
}

Notes