What is the key difference between MCP Server and Slack MCP Server?

MCP Server belongs to the Communication category with local stdio execution, while Slack MCP Server belongs to the Communication category with local stdio execution.

How do I install MCP Server or Slack MCP Server 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 MCP Server and Slack MCP Server free or paid?

MCP Server operates under a BYOK (Pay Provider Direct) model (API Key required). Slack MCP Server operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

MCP Server lists 40 tools with 2 views and 8 GitHub stars. Slack MCP Server lists 7 tools with 1 views and 1,822 GitHub stars.

Can I use both MCP Server and Slack MCP Server 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

MCP Server vs Slack MCP Server

In-depth architectural comparison of the MCP Server and Slack MCP Server 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

MCP Server

Communication · Local stdio

Quality: 64/100 (Good) | Auth: API Key required

Slack MCP Server

Communication · Local stdio

Quality: 57/100 (Good) | Auth: other

Verdict Summary: Choose MCP Server if you need specialized Communication tools running via a local process. Choose Slack MCP Server if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose MCP Server when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
You have access to required keys: VIRTUALSMS_API_KEY.
Primary tools included: virtualsms_list_proxy_catalog, virtualsms_list_proxies, virtualsms_buy_proxy.

Explore MCP Server Details

Choose Slack MCP Server when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: SLACK_MCP_ADD_MESSAGE_TOOL.
Primary tools included: UserID, UserName, RealName.

Feature & Specification Comparison

Specification	MCP Server virtualsms-io Communication	Slack MCP Server korotovsky Communication
Summary	Receive SMS verification codes with AI agents. Get virtual phone numbers for WhatsApp, Telegram, Google, and 500+ services. Own modem infrastructure across 200+ countries with real-time WebSocket delivery. 12 tools for number discovery, purchase, and code extraction.	The most powerful MCP server for Slack Workspaces.
Category & Scope

Tools & Capabilities Breakdown

MCP Server Tools (40)

virtualsms_list_proxy_catalog

List available proxy pool types, countries, and price-per-GB. Use this before buying proxy traffic.

virtualsms_list_proxies

List all proxies on your account with remaining GB and login credentials. Returns proxy_id values for use with get_proxy_usage, rotate_proxy, set_proxy_targeting, and generate_proxy_endpoint.

virtualsms_buy_proxy

Purchase proxy traffic (GB) for a selected pool type. Returns proxy credentials and remaining balance. country_code here is only a soft preference for provisioning. For actual per-connection targeting (country/state/city/zip/asn) or a ready-to-use connection string, use virtualsms_generate_proxy_endpoint after buying. To persist a default targeting on the sub-user, use virtualsms_set_proxy_targeting.

virtualsms_rotate_proxy

Request a fresh IP for an existing proxy. Useful when an endpoint flags the current exit IP.

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).

MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "virtualsms-io-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "virtualsms-mcp"
      ],
      "env": {
        "VIRTUALSMS_API_KEY": "YOUR_VIRTUALSMS_API_KEY_HERE"
      }
    }
  }
}

Slack MCP Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "korotovsky-slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ],
      "env": {
        "SLACK_MCP_ADD_MESSAGE_TOOL": "YOUR_SLACK_MCP_ADD_MESSAGE_TOOL_HERE"
      }
    }
  }
}

Frequently Asked Questions

MCP Server is categorized under Communication and uses a local stdio subprocess. In contrast, Slack MCP Server belongs to Communication using local stdio subprocess. Select MCP Server when you need capabilities focused on communication and Slack MCP Server when you require tools for communication.

More alternatives to MCP Server More alternatives to Slack MCP Server Communication category hub Canonical compare URL