Key takeaway: Cosmic is a hosted headless CMS that prioritises a fast setup and a friendly editing experience, with REST and GraphQL APIs and recent AI authoring features. Pick it for small-to-mid content and marketing sites that want a simple, quick-to-launch hosted CMS.
Quick facts
- CategoryHosted SaaS
- LanguageTypeScript
- PricingFreemium
- LicenseProprietary
- Created2016
- GitHub starsclosed
- Statusactive
What it is
Cosmic (formerly Cosmic JS) is a hosted headless CMS focused on quick setup and a clean API. REST and GraphQL, AI-assisted features, generous free tier. Used predominantly by smaller teams and indie projects.
Best for
- Quick MVPs where time-to-first-content-fetch is the priority
- Indie developers wanting a hosted product without Contentful pricing
When not to pick it
Skip Cosmic for editorial-heavy projects, the editing UI is fine but not designed for content-team scale.
My take
Functional, fast to start. Most teams either stay on the free tier or graduate to Sanity / Hygraph as they grow.
Simple, hosted, quick to launch
Cosmic focuses on getting a content model and APIs stood up quickly, with a clean dashboard, object-based content types, and both REST and GraphQL delivery. It has added AI-assisted content features. The appeal is low friction: you are productive fast without infrastructure or a steep learning curve.
Where it fits
Cosmic suits straightforward content and marketing sites and apps where simplicity and speed matter more than the deepest modelling or enterprise governance. For large, complex content graphs or self-hosted ownership, tools like Sanity, Payload, or Directus are stronger. Pricing is freemium, scaling by usage and seats.
Frequently asked questions
What is Cosmic good for?
Small to mid-sized content and marketing sites and apps that want a simple, fast-to-launch hosted CMS with REST and GraphQL APIs.
Does Cosmic have GraphQL?
Yes. Cosmic offers both REST and GraphQL APIs for content delivery, plus SDKs for common frameworks.
Is Cosmic free?
Cosmic has a free tier for small projects; paid plans scale with usage and team seats.
Links
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If Cosmic is your pick, the next conversation is short
The 30-min call is where your CMS choice becomes a real architecture, an editorial workflow your team can adopt, and a price range you can take to your stakeholders. Describe your content estate, your team\'s muscle memory, your timeline. I tell you whether Cosmic is genuinely your fit.