What is the key difference between Inbox Preview and Slack Mcp Server?

Inbox Preview belongs to the Communication category with cloud HTTP/SSE execution, while Slack Mcp Server belongs to the Communication category with local stdio execution.

How do I install Inbox Preview 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 Inbox Preview and Slack Mcp Server free or paid?

Inbox Preview operates under a Free / Open Source model (No auth required). Slack Mcp Server operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Inbox Preview lists 0 tools with 0 views and 0 GitHub stars. Slack Mcp Server lists 21 tools with 3 views and 29 GitHub stars.

Can I use both Inbox Preview 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.

How do I install Inbox Preview or Slack Mcp Server 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 Inbox Preview and Slack Mcp Server free to use, or do they require API keys?

Inbox Preview is listed under a Free / Open Source model with No auth required . Slack Mcp Server operates under a Free / Open Source model with other . 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 Inbox Preview and Slack Mcp Server at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both inbox-preview and jtalk22-slack-mcp-server 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, Inbox Preview has a Quality Score of 30 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars. Slack Mcp Server holds a Quality Score of 64 /100 ( Good ) with 3 views, 0 installs, and 29 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Inbox Preview vs Slack Mcp Server

In-depth architectural comparison of the Inbox Preview 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

Inbox Preview

Communication · Remote HTTP/SSE

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

Slack Mcp Server

Communication · Local stdio

Quality: 64/100 (Good) | Auth: other

Verdict Summary: Choose Inbox Preview if you need specialized Communication tools running via a hosted cloud SSE transport. 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 Inbox Preview 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 Inbox Preview 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_PROFILE, SLACK_MCP_STORAGE_BACKEND, SLACK_MCP_KEYCHAIN_REFRESH_INTERVAL, SLACK_MCP_TOKEN_FILE_PATH.
Primary tools included: slack_token_status, slack_health_check, slack_refresh_tokens.

Explore Slack Mcp Server Details

Feature & Specification Comparison

Specification	I Inbox Preview Communication	Slack Mcp Server jtalk22 Communication
Summary	Render HTML/.eml emails in real Gmail, Outlook & Yahoo web clients and screenshot them	Your complete Slack context for Claude—DMs, channels, threads, search. No OAuth apps, no admin approval. --setup and done, 11 tools, auto-refresh.
Category & Scope	Communication	Communication

Tools & Capabilities Breakdown

Inbox Preview Tools (0)

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

Slack Mcp Server Tools (21)

slack_token_status

Check token health, age, auto-refresh status, and cache stats

slack_health_check

Check if Slack tokens are valid and show authentication status

slack_refresh_tokens

Force refresh tokens by extracting from Chrome (requires Slack tab open in Chrome)

slack_list_conversations

List all DMs and channels with user names resolved. Uses cached DMs by default for speed.

slack_conversations_history

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).

Inbox Preview Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "inbox-preview": {
      "url": "https://powerline.ai/inbox-preview/"
    }
  }
}

Slack Mcp Server Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "jtalk22-slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ],
      "env": {
        "SLACK_MCP_PROFILE": "YOUR_SLACK_MCP_PROFILE_HERE",
        "SLACK_MCP_STORAGE_BACKEND": "YOUR_SLACK_MCP_STORAGE_BACKEND_HERE",
        "SLACK_MCP_KEYCHAIN_REFRESH_INTERVAL": "YOUR_SLACK_MCP_KEYCHAIN_REFRESH_INTERVAL_HERE",
        "SLACK_MCP_TOKEN_FILE_PATH": "YOUR_SLACK_MCP_TOKEN_FILE_PATH_HERE"
      }
    }
  }
}

Frequently Asked Questions

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

More alternatives to Inbox Preview More alternatives to Slack Mcp Server Communication category hub