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const { data, error } = await coss.email.send({
  from: "Acme <billing@acme.com>",
  to: "ada@example.com",
  subject: "Your October invoice",
  html: "<p>Your invoice is attached.</p>",
  category: "billing",
});

const { data: sms, error } = await coss.sms.send(
  {
    from: "+14155550123",
    to: "+14155550199",
    body: "Your Acme order #1042 has shipped.",
  },
  { idempotencyKey: "order-1042-shipped" },
);

const result = await coss.scheduling.bookings.create({
  event_type: eventTypeId,
  start: "2026-03-10T14:00:00Z",
  attendee: {
    uid: "customer_77",
    name: "Sam Lee",
    email: "sam@example.com",
    time_zone: "America/New_York",
  },
});
if (result.error?.code === "slot_unavailable") {
  // Someone got there first: show the times again.
}

const { data: assessment } = await coss.risk.assess({
  event: "signup",
  user: { email: body.email },
  ip: request.ip,
  user_agent: request.userAgent,
  device: { token: body.device },
});

if (assessment?.decision === "block") {
  throw new Error("We couldn't create your account.");
}

// The user typed their number: send them a code.
const { error } = await coss.verify.start({
  to: "+14155550123", // or an email address
  ip: userIp,
  user_id: "user_42",
});

// They typed the code they got: check it.
const { data: check } = await coss.verify.check({
  to: "+14155550123",
  code: typedCode,
});

const { data: request } = await coss.sign.requests.create({
  title: "Services agreement",
  documents: [{ filename: "agreement.pdf", content: pdfBase64 }],
  signers: [
    {
      name: "Ada Lovelace",
      email: "ada@example.com",
      delivery: "embedded",
      fields: [
        { type: "signature", anchor: "{{signature:signer_1}}" },
      ],
    },
  ],
});

const { data: inbox } = await coss.inboxes.create({
  username: "support-agent",
  client_id: "agent-42",
});

await coss.inboxes.messages.reply(
  inboxId,
  messageId,
  { text: "Sorry about that, Jane! A new one is on its way." },
  { idempotencyKey: `reply-${messageId}` },
);