Does the Model API work with TypeScript?

Yes. Use the same client; the SDK's request and response types match the Chat Completions format. Fields the OpenAI types don't know, such as reasoning_content, can be read with a cast.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.gateway.clatterlabs.xyz/v1",
  apiKey: process.env.CLATTER_API_KEY,
  defaultHeaders: { "X-Clatter-Account": process.env.CLATTER_ACCOUNT_ID },
});

type WithReasoning = { reasoning_content?: string };

const r = await client.chat.completions.create({
  model: "supercosmos-max",
  messages: [{ role: "user", content: "Is 221 prime?" }],
});
const msg = r.choices[0].message as typeof r.choices[0]["message"] & WithReasoning;
console.log(msg.reasoning_content, msg.content);

For the family id with an effort, add effort to the body; TypeScript may need // @ts-expect-error or a cast because it isn't in OpenAI's types.

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#

• Every response has an X-Request-Id; log it so a request can be found later. Why log it
• New accounts get $5 of free credit; top up from $1 to $800 per purchase in Console › Billing › Credits. Billing
• 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.