Follow the steps below to get started with Cosmic to power content for your Remix application.
Install a new Remix app
npx create-remix@latest cosmic-remix
Install the Cosmic JavaScript SDK
Install the Cosmic JavaScript SDK in the location of the codebase.
npm i @cosmicjs/sdk
Add an Object type in the Cosmic dashboard
Log in to the Cosmic dashboard and create a new Blog Posts Object type in a new or existing Project with the following metafields:
- Image: Image type with key
image - Content: Rich text with key
content

Add content
Add a few blog posts to get some content ready to be delivered.
Add the Blog code
In the file app/routes/_index.tsx include the following:
// app/routes/_index.tsx
import type { MetaFunction } from "@remix-run/node";
import { json } from "@remix-run/node";
import { useLoaderData } from "@remix-run/react";
import { createBucketClient } from "@cosmicjs/sdk";
const cosmic = createBucketClient({
bucketSlug: process.env.BUCKET_SLUG || "",
readKey: process.env.BUCKET_READ_KEY || "",
});
export const meta: MetaFunction = () => {
return [
{ title: "Cosmic Remix Blog" },
{ name: "description", content: "Welcome to Cosmic Remix!" },
];
};
export async function loader() {
const { objects: posts } = await cosmic.objects
.find({
type: "blog-posts",
})
.props("title,metadata.image,metadata.content");
return json(posts);
}
export default function Index() {
const posts = useLoaderData<typeof loader>();
return (
<div style={{ fontFamily: "system-ui, sans-serif", lineHeight: "1.8" }}>
{posts?.map(
(post: {
title: string;
metadata: { image: { imgix_url: string }; content: string };
}) => {
return (
<div key={post.title}>
<div>{post.title}</div>
<div>
<img
src={`${post.metadata.image.imgix_url}?w=500&auto=format,compression`}
alt={post.title}
/>
</div>
<div
dangerouslySetInnerHTML={{ __html: post.metadata.content }}
/>
</div>
);
}
)}
</div>
);
}
Build and run
npx remix vite:build
Add your Cosmic API keys
In a new file titled .env add the following environment variables and make sure to switch out the values with your Cosmic API keys found in Project / API keys.
# .env
BUCKET_SLUG=add_your_bucket_slug_here
BUCKET_READ_KEY=add_your_bucket_read_key_here
Start the app
Start your app with the following command, go to http://localhost:5173, and see your blog posts.
npm run dev
FAQ
How much does Cosmic cost?
Project plans are Free ($0), Builder ($99/mo), Team ($299/mo), Business ($499/mo), Enterprise (custom pricing). Yearly billing saves 10%. Workspace plans are Small Workspace ($999/mo) and Large Workspace ($2,999/mo), and they start with a 30-day free trial. Allowances, add-on rates, and the rest of the pricing FAQ are plain text at https://www.cosmicjs.com/pricing.md.
Are API keys required, and is content private?
Each Bucket has a read key and a write key in Bucket Settings > API Access. GET requests use the read key. POST, PATCH, and DELETE use the write key as Authorization: Bearer. Do not put the write key in a browser bundle, a mobile app, or a NEXT_PUBLIC_ variable. SAML single sign-on is on Large Workspace and Enterprise. The audit log is append-only. Text versions: https://www.cosmicjs.com/security.md and https://www.cosmicjs.com/docs/dashboard/audit-log.md.
Can an agent create a Cosmic project without an existing account?
Yes. POST https://dapi.cosmicjs.com/v3/agents/sign-up provisions a free-tier project and bucket tied to a human email, with no existing Cosmic account. The human claims it with the emailed one-time code. The playbook is https://www.cosmicjs.com/docs/ai-onboarding.md.