Can I call the Model API with plain fetch instead of the SDK?

Yes. Any HTTP client works. This is the whole request with fetch (Node 18+, Deno, Bun).

const res = await fetch("https://api.gateway.clatterlabs.xyz/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.CLATTER_API_KEY}`,
    "X-Clatter-Account": process.env.CLATTER_ACCOUNT_ID,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "supercosmos-flash",
    messages: [{ role: "user", content: "Hello!" }],
  }),
});
const data = await res.json();
if (!res.ok) throw new Error(`${res.status} ${data.error?.code}: ${data.error?.message}`);
console.log(data.choices[0].message.content, res.headers.get("x-request-id"));

Every JavaScript example uses the same client (base URL, key and the X-Clatter-Account header); see Set up the JavaScript SDK. Full parameter list: Create a chat completion.

Good to know#

• Retry only 429 and 5xx errors, with backoff; honour Retry-After when it's sent. Which errors to retry
• Every call shows in Console › Logs and Usage as Model API, with its price. See what you spent
• Keep keys on your server, never in a browser or mobile app. Why

Still need help?#

• General support: support@clatterlabs.com or team@clatterlabs.xyz
• Infrastructure questions, or permanent deletion of your data (your whole account or one service): infrastructure@clatterlabs.xyz

We usually reply within the first hour, and always within 24 hours. A full support team is with you.