What is Cosmic used for?

Cosmic is a managed headless CMS with a hosted dashboard, REST API, SDK, CLI and AI agents, aimed at content teams and developers. It is a good fit for marketing sites with non-technical editors, multi-brand and multi-locale content, and docs and storefront content back ends.

Yes. Cosmic has a free plan, and paid plans start at $99 per month. A free trial is also available.

Is Cosmic open source?

No. Cosmic is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Cosmic include Webiny, Strapi and Payload.

What are some alternatives to Cosmic?

Cosmic competes with Storyblok, DatoCMS and Hygraph. For open-source options, see Enlisted's ranked list of open-source Cosmic alternatives.

Cosmic: features, pricing and alternatives

About Cosmic

Cosmic is a commercial managed headless CMS that calls itself AI-native. Editors can publish without waiting on engineering, and a single platform handles several sites, brands and locales. The product includes a dashboard, a media library and workspaces that let a single team and a single bill cover every brand.

For developers it provides a REST API and SDK, a command-line interface and an MCP server so AI tools can work with content. On the AI side it offers built-in AI tools, autonomous agents, an agent marketplace with one-click installs, a plugin marketplace of vendor MCP plugins, and multi-step AI workflows with templates. Insights track content performance and usage, and a migration path helps bring an existing site over.

Cosmic is a hosted service with a free way to start, an enterprise path through sales and a pricing page. It also runs a creator program, a community and build services, and suits teams building websites, apps, storefronts or docs that want a managed back end.

Key features

Hosted dashboard and media library
REST API with SDK and CLI
MCP server for AI tools
AI agents and agent marketplace
Multi-step AI workflows
Workspaces for multiple brands

Good fit for

→Marketing sites with non-technical editors
→Multi-brand and multi-locale content
→Docs and storefront content back ends

Tags: headless-cms; api-first; ai; mcp; cms; managed; saas

Cosmic: questions and answers

What is Cosmic used for?: Cosmic is a managed headless CMS with a hosted dashboard, REST API, SDK, CLI and AI agents, aimed at content teams and developers. It is a good fit for marketing sites with non-technical editors, multi-brand and multi-locale content, and docs and storefront content back ends.
Is Cosmic free?: Yes. Cosmic has a free plan, and paid plans start at $99 per month. A free trial is also available.
Is Cosmic open source?: No. Cosmic is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Cosmic include Webiny, Strapi and Payload.
What are some alternatives to Cosmic?: Cosmic competes with Storyblok, DatoCMS and Hygraph. For open-source options, see Enlisted's ranked list of open-source Cosmic alternatives.