86trust / 100

3LT Letter Mail

by 3lgrouptechnology.com in Email & messaging

MCP serverPassing, checked 1 h ago

Give AI assistants hands: send real USPS letters via MCP.

https://3lgrouptechnology.com/mcp

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
56 ms typical, 56 ms slowest 5%
Last check
1 h ago
Next check
in 4 h

How to call it

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "3lt-letter-mail": {
      "type": "http",
      "url": "https://3lgrouptechnology.com/mcp"
    }
  }
}

3 tools

  • draft_letter

    Create a letter DRAFT: verifies the recipient address with PostGrid, screens content, and returns a price quote. This NEVER mails anything. Pass EITHER html (letter body as an HTML string) OR pdf_path (path to a PDF file on the server). PDF text is extracted for screening; if ex

  • request_send

    Request that a draft be mailed. approval-tier keys: creates a PENDING request and returns a one-tap Allow/Deny approval_url for the human. Nothing is mailed until Allow. on_command keys: may auto-send inside guardrails (spend caps, content screening, anomaly detection); anything

  • send_status

    Check a send request: status (PENDING/SENT/REJECTED/FAILED), the key's trust tier and tier decision, approval state (+approval_url while pending), and billing state (Stripe charge id when billed).

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTime
1 h agoPassed20056 ms