Use Cosmic through Corsair: one typed client for objects, object types, media, and revisions. Corsair handles API key auth, multi-tenant credentials, and can expose Cosmic operations as MCP tools for agents.

Each tenant connects with a Cosmic API key. You then call Cosmic the same way you call Slack or GitHub: tenant.cosmic.api.objects.find(). Corsair can also expose those operations as MCP tools for agents.

Install the plugin, add it to your Corsair instance, and connect a tenant with a Cosmic API key.

bun add corsair @corsair-dev/cosmic

import { createCorsair } from 'corsair';
import { cosmic } from '@corsair-dev/cosmic';

export const corsair = createCorsair({
  plugins: [cosmic()],
  database: db,
  kek: process.env.CORSAIR_KEK!,
});

Full setup is in the Corsair Cosmic plugin docs.