PipesHub vs Groundmail

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

PipesHub logoPipesHubCommunication · Local subprocess (stdio)Permissioned search and cited answers over Slack, Drive, Gmail, Jira, and 50+ workplace sources.48FairAuth: oauth 2.0Groundmail logoGroundmailCommunication · Remote HTTP/SSESend transactional email and manage domains, templates, webhooks and suppressions with Groundmail.58GoodAuth: not declared

Verdict: choose PipesHub for communication work as a local process; choose Groundmail for communication over a hosted endpoint. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

PipesHub logoChoose PipesHub when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: OAuth 2.0.
Explore PipesHub

Groundmail logoChoose Groundmail when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a remote HTTP/SSE transport.
  • You have the keys it needs: GROUNDMAIL_API_KEY, GROUNDMAIL_API_URL.
Explore Groundmail

Feature & specification comparison

Rows where the two servers differ are marked.

SpecPipesHub logoPipesHubGroundmail logoGroundmail
CategoryCommunicationCommunication
Quality signal48/100 · Fair58/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Remote HTTP/SSE
AuthOAuth 2.0Not declared
PricingNot declaredNot declared
Required env varsNone listedGROUNDMAIL_API_KEYGROUNDMAIL_API_URL
Verified ownerCommunity listingCommunity listing
GitHub stars70
Directory activity 2 views 0 installs 0 upvotes 0 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

PipesHub tools

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

Groundmail tools

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

PipesHub

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

Groundmail

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "groundmail": {
      "command": "npx",
      "args": [
        "-y",
        "groundmail-mcp"
      ],
      "env": {
        "GROUNDMAIL_API_KEY": "YOUR_GROUNDMAIL_API_KEY_HERE",
        "GROUNDMAIL_API_URL": "YOUR_GROUNDMAIL_API_URL_HERE"
      }
    }
  }
}

Frequently asked questions

PipesHub is categorized under Communication and uses a local stdio subprocess. Groundmail belongs to Communication and uses a remote HTTP/SSE transport. Pick PipesHub for communication work and Groundmail 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.

PipesHub has no declared pricing — check the project's own site. Auth: oauth 2.0. Groundmail has no declared pricing — check the project's own site. 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 pipeshub and groundmail as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, PipesHub has a quality signal of 48/100 (Fair) with 2 views, 0 installs and 7 GitHub stars. Groundmail has 58/100 (Good) with 0 views, 0 installs and 0 GitHub stars.