What is CosmicJS?

Cosmic is a headless CMS that delivers content via a content API for omnichannel publishing.It provides integrations and starter kits for frameworks such as React, Next.js, Vue, Gatsby, and Astro to accelerate development.

Key features include an image CDN, mobile-friendly content management, content modeling, versioning, and user role controls for marketing and product teams.Developer-focused tooling and SDKs streamline content retrieval and API-driven workflows for web, mobile, and static-site generators.

Enterprise capabilities cover scalability, third-party integrations, and documentation, changelogs, and community resources for implementation and maintenance.Cosmic also supports AI-assisted content workflows and integration options for analytics, e-commerce, and deployment pipelines.

CosmicJS details

Jurisdiction
State of Texas
Built for
Individuals

CosmicJS tech specs

Works with
Anthropic / Claude
Cloud
Vercel
Integrations
Slack Discord GitHub WhatsApp

CosmicJS pricing

Freemium
Free $0/mo
Input tokens $5 per million/mo
Output tokens $19 per million/mo
2m token pack $25
Additional users $29 per user/mo
Additional buckets $29 per bucket/mo
Webhooks $99/mo
Localization $99/mo
Revision history $99/mo
Automatic backups $99/mo
10m token pack $110
Add-on bundle $199/mo
20m token pack $200
Starter $299/mo
50m token pack $475
Pro $499/mo
Enterprise custom/year
Auto-renewal
Yes

CosmicJS's key features

  • Headless content API for omnichannel publishing
  • Integrations and starter kits for React, Next.js, Vue, Gatsby, and Astro
  • Image CDN
  • Content modeling
  • Developer tooling and SDKs for API-driven content retrieval and workflows

CosmicJS use cases

  • Build a fast, omnichannel marketing site and companion mobile app using Cosmic's SDKs and starter kits for Next.js/React/Vue, delivering content via the content API and image CDN for SEO-friendly, optimized pages that update instantly across channels
  • Manage localized product catalogs and e-commerce content with Cosmic's content modeling, versioning, role-based controls and integrations, using AI-assisted workflows to auto-generate product descriptions and push synchronized updates to storefronts, PWAs and marketplaces
  • Enable editorial teams to collaborate with role-based approvals, content versioning and AI-assisted drafting, then publish polished content to web, email, and IoT channels via the API while serving optimized media through the image CDN

CosmicJS user reviews

Would you recommend CosmicJS?

Who is CosmicJS for?

  • Content creators
  • Web developers
  • Digital experience managers
  • Product designers
  • E-commerce sellers

CosmicJS FAQ

Is CosmicJS free?

Partly. CosmicJS has a free plan with usage limits, and paid plans unlock the full feature set. Plans include Input tokens at $5 per million/mo, Output tokens at $19 per million/mo, 2m token pack at $25 and Additional users at $29 per user/mo.

What are the best alternatives to CosmicJS?

The closest alternatives to CosmicJS are Cosmos and Wisp CMS. You can compare them side by side in the alternatives section further down this page.

What does CosmicJS do with my data?

Its privacy policy states that personal data is not sold or shared for marketing purposes. Data may be shared with third-party service providers that help run the product.

Does CosmicJS auto-renew or offer refunds?

CosmicJS subscriptions renew automatically until you cancel.

Which AI models does CosmicJS use?

CosmicJS is built on Anthropic / Claude. Which models you can reach may depend on your plan.

What does CosmicJS integrate with?

CosmicJS connects with Slack, Discord, GitHub and WhatsApp.

Compliance, privacy and billing terms are as stated in each product's own published documentation and have not been independently verified by TopAI.tools.

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