What is the key difference between Agent Cold Email and Esa?

Agent Cold Email belongs to the Communication category with local stdio execution, while Esa belongs to the Communication category with cloud HTTP/SSE execution.

How do I install Agent Cold Email or Esa 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 Agent Cold Email and Esa free or paid?

Agent Cold Email operates under a Free / Open Source model (No auth required). Esa operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Agent Cold Email lists 0 tools with 0 views and 1 GitHub stars. Esa lists 0 tools with 0 views and 62 GitHub stars.

Can I use both Agent Cold Email and Esa 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.

Side-by-Side Model Context Protocol Comparison

Agent Cold Email vs Esa

In-depth architectural comparison of the Agent Cold Email and Esa 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

Agent Cold Email

Communication · Local stdio

Quality: 45/100 (Fair) | Auth: No auth required

Esa

Communication · Remote HTTP/SSE

Quality: 39/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Agent Cold Email if you need specialized Communication tools running via a local process. Choose Esa 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 Agent Cold Email 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 Agent Cold Email Details

Choose Esa 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 Esa Details

Feature & Specification Comparison

Specification	Agent Cold Email Communication	Esa Communication
Summary	Agent-native cold-email infrastructure: domains, mailboxes, warmup, sequences, replies via 17 tools	Official MCP server for esa.io - a documentation sharing service for teams
Category & Scope	Communication	Communication
Quality signal

Tools & Capabilities Breakdown

Agent Cold Email Tools (0)

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

Esa 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).

Agent Cold Email Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "agent-cold-email": {
      "command": "npx",
      "args": [
        "-y",
        "skills"
      ]
    }
  }
}

Esa Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "esa": {
      "url": "https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT"
    }
  }
}

Frequently Asked Questions

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

More alternatives to Agent Cold Email More alternatives to Esa Communication category hub