What is Marble CMS?
Open-source headless CMS with a simple editor and REST API for blogs, changelogs and product news.
Who is Marble CMS best for?
Marble CMS is best for developers who want a simple blog or changelog editor that feeds their Next.js or Astro site.
Developer blogs
Posts come out through a REST API and TypeScript SDK, with guides for Next.js, Astro and TanStack Start.
Changelogs and product updates
Tags, categories, custom fields and scheduled posts suit release notes as well as articles.
Small writing teams
A clean editor with image and video embeds, readability scores and shareable drafts keeps writers out of the code.
Agents that draft posts
The Marble MCP server lets Claude, Cursor and other clients read, create and update posts with a private API key.
How much does Marble CMS cost?
Marble CMS is free for 1 author, 1GB of media and 5k API requests a month; Hobby costs $5 and Pro $20 a month per workspace, and the code is open source under AGPL-3.0.
- Unlimited posts and 1 author
- 1GB of media, 5k API requests a month
- 100 webhook events a month
- 5 authors and 5 team members
- 5GB of media, 25k API requests a month
- AI readability insights, shared drafts
- Unlimited authors, 10 team members
- 10GB of media, 50k API requests a month
- 1k webhook events a month
Plans are billed per workspace, and the Free plan allows unlimited workspaces. Yearly billing saves about 17%: Pro is $200 a year. Pro has a 3-day free trial, and refunds can be requested within 7 days. The source code is on GitHub under the AGPL-3.0 license. Full pricing on marblecms.com. We checked these prices on .
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Is Marble CMS open source?
Yes. Marble CMS's code is public under the AGPL 3.0 licence, so you can read it, change it and run it yourself.
On GitHub
386stars
- Last commit
- 9 Nov
- Repository age
- 1 years
- Licence
- AGPL 3.0
- Repository
- usemarble/marble
How do I connect Marble to my AI agent?
Marble CMS MCP is Marble's official MCP server. Add it to your agent once, then ask it to draft and update blog posts in your Marble workspace.
Your agent can read what is in your Marble workspace, write new posts and edit the ones already there, so your blog is easier to keep current.
$ claude mcp add --transport http marble https://mcp.marblecms.com/mcp
Claude Code connects to Marble over the web.
Make an API key in your Marble account and add it where the guide says.
Then ask your agent
- Runs
- On the web
- Sign-in
- API key
- Checked
- Answered 13 Nov
- Guide
- docs.marblecms.com
What are the best Marble CMS alternatives?
Two tools on Recaply do Marble CMS's job.
Questions about Marble CMS
What is Marble CMS?
Open-source headless CMS with a simple editor and REST API for blogs, changelogs and product news.
Who is Marble CMS for?
Marble CMS is best for developers who want a simple blog or changelog editor that feeds their Next.js or Astro site.
Is Marble CMS free?
Yes. Marble CMS has a free plan: unlimited posts and 1 author.
How much does Marble CMS cost?
Marble CMS's paid plans are Hobby at $5 per workspace per month and Pro at $20 per workspace per month.
Is Marble CMS open source?
Yes. Marble is open source under the AGPL-3.0 license, with the code on GitHub. The hosted service at marblecms.com has a free plan and paid plans from $5 a month per workspace.
Does Marble have an MCP server?
Yes. Marble CMS MCP is Marble's official MCP server, so agents such as Claude Code, Cursor, Codex and GitHub Copilot can draft and update blog posts in your Marble workspace. Marble runs it on the web and it signs in with an API key from your Marble account.
What are the best Marble CMS alternatives?
The closest alternatives on Recaply are Wisp CMS and Strapi.
Where can I try Marble CMS?
On its official website, marblecms.com.
Can I import Markdown into Marble CMS?
Yes. Marble imports Markdown and MDX files as draft posts, and exports a whole workspace as a JSON archive with posts, authors, tags, media details and custom fields.
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