{
  "name": "directmailamerica",
  "description": "Live physical letter mailing MCP server. Guest x402 send_letter (no API key), org credits, Square card checkout (no PAN), and account bind via web login. Staging keys (lbl_test_) never mail.",
  "url": "https://directmailamerica.com/api/mcp",
  "transport": "http",
  "authentication": "Optional Authorization: Bearer lbl_live_... or lbl_test_.... Guest x402 send_letter allowed without a key. start_account_login binds an existing org.",
  "payments": {
    "guestX402": true,
    "credits": true,
    "card": "create_credit_checkout — Square hosted Payment Link; never send PAN to MCP",
    "stables": [
      {
        "symbol": "USDC",
        "network": "eip155:8453",
        "networkLabel": "Base",
        "live": true
      },
      {
        "symbol": "USDC",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "networkLabel": "Solana",
        "live": true
      }
    ],
    "note": "Same x402 accepts[] as REST POST /api/v1/letters. Other stables are not live until they appear there."
  },
  "docs": "https://directmailamerica.com/docs/mcp",
  "openapi": "https://directmailamerica.com/api/v1/openapi.json",
  "tools": [
    "send_letter",
    "get_letter_status",
    "list_jobs",
    "get_pricing",
    "get_credits",
    "purchase_credits",
    "create_credit_checkout",
    "get_payment_status",
    "start_account_login"
  ]
}