{
  "example": "Sign SSH Certificate",
  "operation": "signCertificate",
  "request": {
    "method": "POST",
    "url": "https://api.openssh.example.com/v1/certificates",
    "headers": {
      "Authorization": "Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
      "Content-Type": "application/json"
    },
    "body": {
      "publicKey": "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBm3b1TcFkBRm3GxJlZbqcZCj9ej7l6TdZHUfp5R1234",
      "principals": ["jane", "admin"],
      "validityPeriod": "8h",
      "certType": "user",
      "extensions": {
        "permit-pty": "",
        "permit-user-rc": ""
      }
    }
  },
  "response": {
    "status": 201,
    "contentType": "application/json",
    "body": {
      "certificate": "ssh-ed25519-cert-v01@openssh.com AAAAIHNzaC1lZDI1NTE5LWNlcnQtdjAxQG9wZW5zc2guY29tAAAA...",
      "serialNumber": 42,
      "principals": ["jane", "admin"],
      "validAfter": "2026-05-02T10:00:00Z",
      "validBefore": "2026-05-02T18:00:00Z",
      "keyId": "jane-workstation-2026-05-02",
      "certType": "user",
      "fingerprint": "SHA256:Xk9mNpQrStUvWxYzAbCdEfGhIjKlMnOpQrStUvWxYz0"
    }
  }
}