Marble
Marble is an open-source headless CMS for blogs, changelogs, and articles with a simple REST API, AI readability scoring, and real-time
For a blog or changelog you're rendering yourself, Marble is one of the genuinely simple headless CMS options — and the $5/mo Hobby tier is the pick, since it's the cheapest plan that turns on Content Intelligence and post draft sharing. The Cloudflare Queues webhooks with delivery logs and the June 2026 JSON workspace export are the parts that make it more than a content API. Pass if you need SSO, multi-language workflows, or revision history; Marble doesn't do that class of work.
Verified 4d ago · liveness 79/100 · cite: rightaichoice.com/tools/marble
- Solo developers who want a blog or portfolio content layer with a REST API
- Small teams running product changelogs and release notes
- Indie makers who need a no-fuss CMS for a side project without paying for Pro
- Jamstack developers building with Next.js, Astro, Nuxt, or TanStack
- Enterprise teams needing SSO or role-based permissions — no tier offers them
- Sites requiring multi-language content workflows
- Anyone who wants a hosted website builder with themes and no frontend work
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Skip Marble if you need a hosted site builder, multi-language content, revision history, or SSO — it is a headless blog and changelog CMS that expects you to build and host the frontend yourself.
Every paid workspace needs its own subscription, so an agency running five client blogs pays five times the listed plan price.
Per workspace, Marble prices below most headless CMS competitors: Free at $0/mo, Hobby at $5/mo, and Pro at $20/mo or $200/year billed annually (about 17% off). That suits solo developers through teams of ten. Enterprise content platforms with SSO, localization, and approval workflows cost an order of magnitude more — but you'd be paying for features Marble doesn't have.
In short
Marble — Marble is an open-source headless CMS for blogs, changelogs, and articles with a simple REST API, AI readability scoring, and real-time. Best for Solo developers who want a blog or portfolio content layer with a REST API, Small teams running product changelogs and release notes, Indie makers who need a no-fuss CMS for a side project without paying for Pro. Free to start; paid plans from $5/mo.
What's new in Marble
Checked 3 days agoAcross the latest 5 updates: 2 feature updates, 1 pricing change and 2 news mentions.
How to Build a Blog with Astro and a Headless CMS
Marble published a guide for building an Astro blog on its headless CMS, covering Content Collections, the TypeScript SDK, and webhook-driven rebuilds.
Workspace Data Exports
You can now export your Marble workspace data as a downloadable JSON archive from settings.
How to Use Marble with Framer
A guide covering how to connect Marble to Framer CMS, import posts, map fields, and sync updates through the Framer plugin.
Introducing Hobby
Marble launched the Hobby plan at $5/month, positioned between Free and Pro for creators who need more room than the Free tier without jumping to Pro.
MCP Server
Marble shipped an MCP server that lets AI agents and MCP clients connect to a Marble workspace.
What people actually say about Marble — is it worth it?
We scanned public community sources for Marble on Aug 13, 2026 and could not establish that the discussion we found is about this tool rather than something else sharing its name. Our own analysis of that scan says the posts were off-subject. Rather than publish a sentiment score built on the wrong subject, we publish nothing here and re-run the scan.
Viability Score
How well maintained and how widely used is Marble? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Headless REST API for content delivery to any framework
- Full CRUD operations via API with key generation, management, and rotation
- Rich text editor with markdown paste and file import
- Drag-and-drop and paste-to-upload image handling
- Video embeds and an improved code block editor for snippets
- Media management with global CDN delivery
- Real-time webhooks on Cloudflare Queues with retries and delivery logs
- Content Intelligence: real-time readability scores and AI optimization tips
- Workspace-level custom fields for structured data per post
- Workspace data export as a downloadable JSON archive
- MCP server so AI agents and MCP clients can read a workspace
- Framer plugin with one-click content sync
- Raycast extension for quick access from the launcher
- Multiple independent workspaces, each with its own users and content
- SEO fields covering the data needed to generate an optimized page
About Marble
Marble is a headless CMS for blogs, changelogs, articles, and static pages — you write in the dashboard, then pull content into any frontend through a REST API. It's aimed at developers, writers, and small teams who want a content layer without the weight of a traditional CMS. The workspace model is the core idea: each workspace is independent, gets its own users and content, and is billed on its own, so one account can hold several blogs or projects. Where most minimal CMS products stop at a CRUD API, Marble ships a few pieces of real infrastructure. Webhooks run on Cloudflare Queues with retries and delivery logs visible in the dashboard, which is what you'd wire to a static-site rebuild. Content Intelligence scores readability as you type and suggests edits — gated to paid tiers. A June 2026 release added workspace data export as a downloadable JSON archive from settings, and an earlier release shipped an MCP server so AI agents and MCP clients can connect to a workspace directly. The editor handles rich text with pasted or imported markdown, drag-and-drop and paste-to-upload images, video embeds, and an improved code block editor for snippets. Media is served from a global CDN. Documentation and examples cover Next.js, Astro, Nuxt, and TanStack, plus a Framer plugin for one-click content sync and a Raycast extension. Positioning matters here: Marble is not a hosted site builder. You supply and host the frontend. Compared with Ghost or WordPress it demands more setup; compared with a bare content API it gives you custom fields, webhooks with delivery logs, and readability tooling out of the box. It's framework-agnostic and 100% open source, so the ceiling is what you build.
Behind the Verdict
Reach for Marble when you already have a frontend and just need somewhere sane to write. A four-post blog, a changelog feeding release notes, a docs-adjacent article section — that's the shape of project this handles without ceremony. The workspace model is worth noting early: each workspace carries its own subscription, so a second paid blog means a second bill. Unlimited workspaces on the Free plan softens that, but paid limits are per workspace, not per account. Pricing on the vendor pages is clear and worth repeating: Free at $0/mo gives you 1 author, 1GB media, 5k API requests and 100 webhook events per month. Hobby at $5/mo raises that to 5 authors, 5GB, 25k requests, 500 webhook events, and adds AI Readability insights plus post draft sharing. Pro at $20/mo (or $200/year, about 17% off) goes unlimited authors, 10GB, 50k requests, 1k webhook events, 10 team members. Pro carries a 3-day free trial and a 7-day refund window if you email support. Payments run through Polar. The hidden line item is webhook events. 100/month on Free and 500 on Hobby sound generous until a busy blog with several rebuild triggers starts firing on every publish and edit. Check your usage in the dashboard before you blame the CMS. Content Intelligence is the other reason to leave Free. Readability scoring as you type is a real workflow difference for anyone writing long-form, and it's simply not on the free tier. If you don't care about that and you're one author with a small media library, Free is fine indefinitely. Skip Marble if you need SSO, role-based permissions, multi-language content workflows, revision history, or approval chains — none of that is here, and no pricing tier unlocks it. That's a deliberate scope choice, not an oversight, but it means the platform won't grow
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Real-world workflow fit
Concrete scenarios for the personas Marble actually fits — and what changes day-one when you adopt it.
Creates a workspace, writes posts in Marble's editor (pasting markdown from an existing repo), uploads images to the CDN-backed media library, and pulls content into Astro Content Collections via the REST API. A webhook fires on publish to trigger a rebuild.
Outcome: A blog running on Marble content with no CMS to maintain on the server, on the Free plan until traffic or media pushes past 5k API requests or 1GB storage.
Upgrades to Hobby for AI Readability insights and draft sharing, writes changelog entries as their own content type, shares drafts with the founder for review, and lets the Framer plugin sync published posts into the marketing site's CMS fields.
Outcome: Changelog and blog updated without engineering involvement, five seats covered under one $5/mo workspace subscription.
Connects the Marble MCP server to an MCP client so an agent can read posts, then uses workspace custom fields to attach structured metadata the agent can filter on.
Outcome: Agent answers queries against real published content instead of a scraped copy, with the same workspace limits applying to the requests it makes.
Use Cases
- Manage a personal blog with posts, tags, and SEO metadata served through a REST API.
- Publish product changelogs and trigger a static-site rebuild on publish via webhooks.
- Power a documentation site with articles and media assets served from a global CDN.
- Design a marketing site in Framer and sync content from Marble with the Framer plugin.
- Collaborate on a content-driven site with draft sharing and up to 5 seats on Hobby.
- Attach structured data like product specs or case-study metrics to posts with custom fields.
- Export an entire workspace as a JSON archive for backup or migration.
- Connect an AI agent or MCP client to a Marble workspace via the MCP server.
Limitations
- Marble is headless: you need a frontend framework to render anything, which means development work.
- Limits are metered per workspace and enforced by rate limiting rather than overage billing — Free gets 5,000 API requests and 100 webhook events per month, Hobby 25,000 and 500, Pro 50,000 and 1,000.
- Media storage is 1GB, 5GB, and 10GB respectively.
- The Free plan caps you at 1 author and 1 team member; Hobby raises it to 5 authors and 5 team members; Pro allows unlimited authors and 10 team members.
- AI Readability insights and draft sharing start at Hobby, so the $5/mo plan is the practical floor for anything beyond a solo project.
- Plans are billed per workspace, so agencies managing multiple client sites pay per workspace.
- A 3-day free trial is available only on the Pro plan.
as of 2026-10-05
Verification history
We have re-verified Marble 10 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
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12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published Marble tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0/mo
Ideal for
Solo developer publishing a personal blog or portfolio who doesn't need AI insights or draft sharing yet.
What this tier adds
Starting tier: unlimited posts, 1 author, 1GB media, 5k API requests and 100 webhook events per month.
Hobby
$5/mo
Ideal for
Indie maker or small team running a blog or changelog that has outgrown a single author and 1GB of media.
What this tier adds
Adds AI Readability insights and draft sharing, and raises limits to 5 authors, 5GB media, 25k API requests, and 500 webhook events.
Pro
$20/mo
Ideal for
Growing team with several writers publishing frequently and hitting the Hobby request or seat ceilings.
What this tier adds
Unlimited authors, 10GB media, 50k API requests, 1k webhook events, and 10 team members; $20/mo or $200/year billed annually.
Where the pricing makes sense
The company stage and team size where Marble's pricing actually pencils out — and where peers do it cheaper.
Per workspace, Marble prices below most headless CMS competitors: Free at $0/mo, Hobby at $5/mo, and Pro at $20/mo or $200/year billed annually (about 17% off). That suits solo developers through teams of ten. Enterprise content platforms with SSO, localization, and approval workflows cost an order of magnitude more — but you'd be paying for features Marble doesn't have.
Setup time & first value
How long it actually takes to get something useful out of Marble — broken out by persona, not the marketing-page minute.
Solo developer: about 15-30 minutes to a live post — create a workspace, write or paste markdown, then wire the REST API into a Next.js, Astro, or TanStack template the vendor documents. Small team: under an hour, most of it spent on draft-sharing habits and webhook setup rather than configuration. Adding the Framer plugin or MCP server is a separate short step.
Switching to or from Marble
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From a Git-based blog: paste markdown files into the editor or use the import button on the posts page.
- →From a code-stored content folder: import markdown files to move content out of the codebase into Marble.
- →From Framer-only content: install the Framer plugin and sync Marble content into Framer CMS with field mapping.
- ↗To a static archive or another CMS: export your workspace as a downloadable JSON archive from settings.
- ↗To a Git-based blog: pull content through the full CRUD REST API and commit it as markdown.
Integrations
Resources & Guides
Tutorials & Learning
YouTube returned 6 videos for “Marble”, and we withheld 6: 6 could not be judged, because “Marble” is a single word that other videos use for other things. We are showing none, because we could not prove any of them are about Marble.
Official links
Tools that pair well with Marble
Common stack mates teams adopt alongside Marble, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
Marble vs Spider Cloud
Choose Marble if you need a simple, developer-friendly headless CMS for blogs and changelogs with AI writing assistance. Choose Spider Cloud if your priority is high-speed web scraping and crawling for AI agents and RAG pipelines. Marble excels in content management; Spider Cloud in data extraction at scale.
Marble vs Voyage Ai
If you're building enterprise RAG pipelines requiring high-precision retrieval on domain-specific data (finance, legal) with long context support and low-dimensional embeddings, Voyage AI is the clear choice despite opaque pricing. If you need a dead-simple headless CMS for a personal blog or product changelog, Marble offers a generous free tier, modern integrations (Framer plugin, MCP server), and zero fuss. They solve completely different problems—pick Voyage for retrieval accuracy, Marble for content management.
Marble vs Temporal Ai
Choose Marble if you need a dead-simple headless CMS for a blog, changelog, or documentation site with AI writing tips and a Framer plugin. Choose Temporal AI if you're building fault-tolerant AI agents or multi-step workflows that must survive crashes and retries—especially if you need durable execution, human-in-the-loop, and Saga patterns. They solve completely different problems: content management vs. workflow orchestration.
Marble vs Writer
If you're a solo dev or small team needing a lightweight, open-source headless CMS for a blog or changelog with AI readability hints, Marble is your pick. If you're an enterprise team in a regulated industry that wants AI agents to produce on-brand content at scale with full governance, Writer is the clear winner. They solve completely different problems.
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