Emailmd vs Slack MCP Server

A side-by-side look at the Emailmd and Slack MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Emailmd logoEmailmdCommunication · Local subprocess (stdio)Write and preview emails from your assistant. Renders markdown into email-safe HTML that holds up in Outlook and Gmail, lints drafts for deliverability problems, and returns a live preview link. Hosted with no API key, or run it locally with npx emailmd mcp.64GoodAuth: no auth requiredSlack MCP Server logoSlack MCP ServerCommunication · Local subprocess (stdio)Your complete Slack context for Claude—DMs, channels, threads, search. No OAuth apps, no admin approval. --setup and done, 11 tools, auto-refresh.68GreatAuth: other

Verdict: choose Emailmd for communication work as a local process; choose Slack MCP Server for communication as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Emailmd logoChoose Emailmd when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
Explore Emailmd

Slack MCP Server logoChoose Slack MCP Server when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: other.
  • You want tools like slack_token_status, slack_health_check, slack_refresh_tokens.
Explore Slack MCP Server

Feature & specification comparison

Rows where the two servers differ are marked.

SpecEmailmd logoEmailmdSlack MCP Server logoSlack MCP Server
CategoryCommunicationCommunication
Quality signal64/100 · Good68/100 · Great
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNo auth requiredother
PricingFreeFreemium
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars1,38232
Directory activity 3 views 0 installs 0 upvotes 8 views 0 installs 0 upvotes
ToolsNot listed19

Tools & capabilities

Emailmd tools

No tool names declared yet. Check the project README from the listing page.

Slack MCP Server tools 19

  • slack_token_statusCheck token health, age, auto-refresh status, and cache stats
  • slack_health_checkCheck if Slack tokens are valid and show authentication status
  • slack_refresh_tokensForce refresh tokens by extracting from Chrome (requires Slack tab open in Chrome)
  • slack_list_conversationsList all DMs and channels with user names resolved. Uses cached DMs by default for speed.
  • slack_conversations_historyGet messages from a channel or DM with user names resolved
  • slack_get_full_conversationExport FULL conversation history with all messages, threads, and user names. Can save to file.
  • slack_search_messagesSearch messages across the Slack workspace
  • slack_users_infoGet detailed information about a Slack user
  • slack_send_messageSend a message to a channel or DM
  • slack_get_threadGet all replies in a message thread
  • slack_list_usersList all users in the workspace
  • slack_add_reactionAdd an emoji reaction to a message
  • +7 more on the listing page

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Emailmd

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "anypost-emailmd": {
      "command": "npx",
      "args": [
        "-y",
        "emailmd"
      ]
    }
  }
}

Slack MCP Server

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "jtalk22-slack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jtalk22/slack-mcp"
      ]
    }
  }
}

Frequently asked questions

Emailmd is categorized under Communication and uses a local stdio subprocess. Slack MCP Server belongs to Communication and uses a local stdio subprocess. Pick Emailmd for communication work and Slack MCP Server for communication.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Emailmd is listed as free. Auth: no auth required. Slack MCP Server is listed as freemium — a free tier with paid plans. Auth: other. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add anypost-emailmd and jtalk22-slack-mcp-server as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Emailmd has a quality signal of 64/100 (Good) with 3 views, 0 installs and 1,382 GitHub stars. Slack MCP Server has 68/100 (Great) with 8 views, 0 installs and 32 GitHub stars.