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The Best Headless CMS for Next.js

Cosmic is the API-first headless CMS built for Next.js App Router, Server Components, and the modern React ecosystem. TypeScript SDK, sub-100ms REST API, built-in AI agents, and imgix CDN. Start free.

Why Cosmic Is the Best Headless CMS for Next.js

Next.js is the most widely used React framework for production applications. Cosmic is built to pair with it at every layer: App Router, Pages Router, React Server Components, SSG, SSR, and ISR. No proprietary query language, no bridge library, no preview server to deploy. Just a clean REST API and a TypeScript SDK that works everywhere Next.js runs.


Getting Started: Next.js App Router

Install the SDK


Add environment variables


Create a reusable client



Fetching Content in React Server Components

Next.js App Router Server Components run on the server and can fetch data directly, with no , no , and no client-side waterfall:


Single post with dynamic routing



Pages Router: getStaticProps and getServerSideProps

Cosmic works identically with the Pages Router:



Calling the REST API Directly

No SDK needed for simple fetches. Cosmic's REST API works from any call:


This integrates natively with Next.js 14+ fetch caching and revalidation.


On-Demand Revalidation

Use Cosmic webhooks to trigger Next.js on-demand revalidation when content changes:


Configure a Cosmic webhook to to on object publish. Your site updates instantly when editors publish new content, without a full rebuild.


Rendering imgix Images with next/image

Cosmic stores all media on imgix. Use Next.js's built-in component for automatic optimization:




Why Next.js Teams Choose Cosmic

No Proprietary Query Language

Sanity requires you to learn GROQ. Cosmic uses standard REST URL parameters. Developers who know HTTP know the Cosmic API already.

App Router and Server Components, First-Class

Cosmic's SDK is async-first and works natively in Server Components. Fetch data, render HTML, ship it to the browser. No client-side hydration overhead for content that does not need interactivity.

Content Modeling Without Code

Add a field to your content type in the Cosmic dashboard. It appears in the API immediately. No TypeScript interface updates, no migration scripts, no redeployment required.

AI Agents Built In

Cosmic's AI Agents create and manage your Next.js app's content automatically. Schedule a Content Agent to research and draft blog posts weekly. Use a Code Agent to commit SEO improvements to your Next.js repository. The CMS handles both the content and the code.

MCP Server for AI Coding Tools

Cosmic's MCP Server connects your bucket to Cursor, Claude Code, GitHub Copilot, and other AI development tools. Write your Next.js components while your AI assistant queries Cosmic for the real content types and field names. No more hallucinated schema.


Pricing

Pricing verified April 2026.

PlanPriceBucketsTeam MembersObjects
Free$0/month121,000
Builder$49/month235,000
Team$299/month3520,000
Business$499/month51050,000
EnterpriseCustomCustomCustomCustom

Additional users: $29/user/month. Free plan is forever free, no credit card required.

View full pricing →


What Real Teams Say

"Cosmic is: us never having to ask a developer to change anything on the backend of our website."

Maximilian Wuhr, Co-Founder at FINN

FINN uses Cosmic to power their marketing site, giving editors full content autonomy. No developer involvement needed for content changes.


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Evaluating Cosmic for a production Next.js app? Book a 30-minute demo with Tony →


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