SendGuard MCP Server

ai.sendguard/preflightv1.0.0

Check an email before your AI agent sends it: allow, review or block with reasons.

remoteofficial registry

context tax

pending

security

pending

cold start

hosted

freshness

Active3d ago

Our reading of SendGuard, from the data

SendGuard is a email MCP server, listed in the official MCP Registry.

We haven't measured its tool list yet, so its token cost is unknown.

Maintenance is active: the last public signal was 3 days ago (2026-10-15). For comparison, 75% of email servers are active or maintained.

It runs as a hosted endpoint, so there is nothing to install.

Install SendGuard MCP server

claude mcp add --transport http ai-sendguard-preflight https://api.sendguard.ai/mcp

{
  "mcpServers": {
    "ai-sendguard-preflight": {
      "url": "https://api.sendguard.ai/mcp"
    }
  }
}

{
  "mcpServers": {
    "ai-sendguard-preflight": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://api.sendguard.ai/mcp"
      ]
    }
  }
}

Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.

{
  "servers": {
    "ai-sendguard-preflight": {
      "type": "http",
      "url": "https://api.sendguard.ai/mcp"
    }
  }
}

{
  "mcpServers": {
    "ai-sendguard-preflight": {
      "serverUrl": "https://api.sendguard.ai/mcp"
    }
  }
}

Remote endpoints

streamable-httphttps://api.sendguard.ai/mcp

Freshness

Active — last maintenance signal 3d ago. The newest of the signals below sets the band.

Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-10-15 · 3d ago · official registry · v1.0.0

How it compares in Email

Against the most-starred email servers we index. Token cost is per model turn, measured from each server's live tool list.

Server	Stars	Tools	Tokens / turn	Freshness	Runs
SendGuard (this)	—	—	not measured	Active	hosted
Inbox Zero	12,649	—	not measured	Active	hosted
Useplunk	5,524	—	not measured	Active	local
Google Workspace	3,370	—	not measured	Active	—
OpenOSINT	1,776	—	not measured	Active	local
emailmd	1,382	3	954	Active	local + hosted

All email MCP servers

FAQ

›How do I install the SendGuard MCP server in Claude Code?

Run: claude mcp add --transport http ai-sendguard-preflight https://api.sendguard.ai/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does SendGuard require an API key?

No required environment variables are declared in its published metadata.

›Can I use SendGuard as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is SendGuard in the official MCP registry?

Yes, as ai.sendguard/preflight.

Sources and method

Official MCP Registry entry: updated 2026-10-15
Last checked against all sources: 2026-10-19

The description, packages and links come from the maintainer's own published metadata. Token cost, security signals, freshness and the reading above are MCPSkillHub's own measurements; see the methodology. Spot an error? Request a correction or claim the listing.