neet/masto.js

import { createRestAPIClient } from "masto";

const masto = createRestAPIClient({
  url: "https://example.com",
});

const app = await masto.v1.apps.create({
  clientName: "My app",
  redirectUris: "urn:ietf:wg:oauth:2.0:oob",
  scopes: "read write",
  website: "example.com",
});

console.log(app);