Groundmail vs Slideless

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

Groundmail logoGroundmailCommunication · Remote HTTP/SSESend transactional email and manage domains, templates, webhooks and suppressions with Groundmail.58GoodAuth: not declaredSlideless logoSlidelessCommunication · Remote HTTP/SSEList, share, upload, and manage Slideless HTML presentations from any MCP host.41FairAuth: not declared

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

Which MCP server should you choose?

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

Slideless logoChoose Slideless when

  • You need dedicated capabilities in the Communication domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like slideless_whoami, slideless_list_presentations, slideless_get_presentation.
Explore Slideless

Feature & specification comparison

Rows where the two servers differ are marked.

SpecGroundmail logoGroundmailSlideless logoSlideless
CategoryCommunicationCommunication
Quality signal58/100 · Good41/100 · Fair
Install commandConfirmedConfirmed
TransportRemote HTTP/SSERemote HTTP/SSE
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsGROUNDMAIL_API_KEYGROUNDMAIL_API_URLNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars00
Directory activity 0 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
ToolsNot listed22

Tools & capabilities

Groundmail tools

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

Slideless tools 22

  • slideless_whoamiIdentity check — returns org, key name, scopes
  • slideless_list_presentationsList owned + invited presentations
  • slideless_get_presentationFull info for one presentation (tokens, collaborators)
  • slideless_list_versionsVersion history of a presentation
  • slideless_get_versionManifest of a specific version
  • slideless_download_versionManifest + inline text-file contents (HTML/CSS/JS up to 256 KB each)
  • slideless_upload_html_presentationUpload a single-file HTML deck
  • slideless_upload_presentation_filesUpload a multi-file deck (base64 array)
  • slideless_add_share_tokenMint a public viewer URL
  • slideless_set_token_version_modePin or unpin a token to a version
  • slideless_unshare_presentationRevoke one or all share tokens
  • slideless_share_via_emailSend the share URL by email
  • +10 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.

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"
      }
    }
  }
}

Slideless

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "slideless": {
      "url": "https://mcp.slideless.ai/mcp"
    }
  }
}

Frequently asked questions

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

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

On AllMCPs, Groundmail has a quality signal of 58/100 (Good) with 0 views, 0 installs and 0 GitHub stars. Slideless has 41/100 (Fair) with 1 views, 0 installs and 0 GitHub stars.