What is the key difference between Mailcannon and Campaignstack?

Mailcannon belongs to the Communication category with local stdio execution, while Campaignstack belongs to the Communication category with cloud HTTP/SSE execution.

How do I install Mailcannon or Campaignstack in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Mailcannon and Campaignstack free or paid?

Mailcannon operates under a Free / Open Source model (No auth required). Campaignstack operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Mailcannon lists 0 tools with 0 views and 0 GitHub stars. Campaignstack lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Mailcannon and Campaignstack together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Mailcannon or Campaignstack in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Mailcannon and Campaignstack free to use, or do they require API keys?

Mailcannon is listed under a Free / Open Source model with No auth required . Campaignstack operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Mailcannon and Campaignstack at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both mailcannon and campaignstack as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Mailcannon has a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Campaignstack holds a Quality Score of 30 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Mailcannon vs Campaignstack

In-depth architectural comparison of the Mailcannon and Campaignstack MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Mailcannon

Communication · Local stdio

Quality: 27/100 (Emerging) | Auth: No auth required

Campaignstack

Communication · Remote HTTP/SSE

Quality: 30/100 (Emerging) | Auth: No auth required

Verdict Summary: Choose Mailcannon if you need specialized Communication tools running via a local process. Choose Campaignstack if your workspace requires Communication integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Mailcannon when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Mailcannon Details

Choose Campaignstack when:

You need dedicated capabilities in the Communication domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Campaignstack Details

Feature & Specification Comparison

Specification	M Mailcannon Communication	C Campaignstack Communication
Summary	AI-powered email outreach platform — send campaigns with deliverability tracking.	Run B2B outreach from your AI agent: 250+ tools for campaigns, leads, LinkedIn and email workflows.
Category & Scope	Communication	Communication
Quality signal

Tools & Capabilities Breakdown

Mailcannon Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Campaignstack Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Mailcannon Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "mailcannon": {
      "command": "npx",
      "args": [
        "-y",
        "mailcannon"
      ]
    }
  }
}

Campaignstack Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "campaignstack": {
      "url": "https://campaignstack.io"
    }
  }
}

Frequently Asked Questions

Mailcannon is categorized under Communication and uses a local stdio subprocess. In contrast, Campaignstack belongs to Communication using remote streaming HTTP/SSE transport. Select Mailcannon when you need capabilities focused on communication and Campaignstack when you require tools for communication.

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