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SendGuard

ai.sendguard/preflight · v1.0.0

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

Connect Remote server

Terminal
claude mcp add --transport http preflight https://api.sendguard.ai/mcp --header "Authorization: Bearer <YOUR_API_KEY>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "preflight": {
      "url": "https://api.sendguard.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "preflight": {
      "type": "http",
      "url": "https://api.sendguard.ai/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://api.sendguard.ai/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 1 found in our last check

  • preflight_email

    Check an AI-written email before sending. Returns allow, delay, requires_approval or block with reason codes (recipient validity, sender authentication, content risk, sensitive industries, volume limits) and recommendations. Does not send email. Without an API key: 3 free checks…

Headers

NameDescription
Authorization
Optional, secret
Optional. "Bearer sk_..." API key from https://app.sendguard.ai for paid credits; without it you get 20 free checks per day.

Details

Endpointhttps://api.sendguard.ai/mcp (Streamable HTTP)
First published15 Oct 2026
Last updated15 Oct 2026
Registry nameai.sendguard/preflight

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