One workspace
Content, AI assistant, and live preview — every surface you use, side by side.
Now in early access
Make your existing Astro site visually editable in minutes
Zero is a Git-based, AI-native CMS you can connect to an existing Astro site in less than 10 minutes. No code changes required.
Built for 
Give a full CMS for editors without a single code change. Connect your GitHub repository to edit content instantly.
Built for agents.
Work with the built-in agent or bring your own (Claude, Codex, etc.)
Automate quality.
Catch broken links, SEO problems, and other issues as content is written, not after it ships.
Stop maintaining duplicate schemas.
ZeroCMS reads your existing Zod schemas and Astro components so you never maintain separate configs.
Your content workflow, rebuilt for humans and agents alike. One workspace to create, review, and publish on-brand content with AI.
Schema-driven fields
Zero automatically reads Astro's Zod schemas and generates a visual editor for each field. No custom configuration is required.
No matter how complex your schema, all structures and content types are supported. Your team edits visually while the structure stays rock-solid underneath.
Visual Editor
Beautiful visual editor for Markdown, MDX, JSON, and YAML files. Add images, lists, tables, links, and more with just a few clicks. You can also use your existing .astro components right away. No coding knowledge is required.
AI generated images
Get a relevant image the moment you need one. Use Zero to generate matching images in seconds using the latest AI image generation models. Or upload your own.
Live Preview
See every change on your actual Astro site as you type. Your real site, running your code, updating in real time. See how it looks on different screen sizes, or share the preview URL with others to get feedback.
Quality checks
Catch content issues such as SEO problems, typos, and broken links before publishing, or optimize your content for AI agents. Zero comes with 8 built-in quality checks and allows you to define custom ones where needed.
Issues reported by quality checks can quickly be fixed with the help of the AI assistant.
AI agent
Zero ships with an AI agent that works alongside you. Use it to plan, write, and update content across multiple files. It also generates images on demand and automates your content workflows with custom skills.
If you'd rather connect Claude or ChatGPT to Zero, it's also possible through Zero's MCP server.
Schema-driven fields
Zero automatically reads Astro's Zod schemas and generates a visual editor for each field. No custom configuration is required.
No matter how complex your schema, all structures and content types are supported. Your team edits visually while the structure stays rock-solid underneath.
Visual Editor
Beautiful visual editor for Markdown, MDX, JSON, and YAML files. Add images, lists, tables, links, and more with just a few clicks. You can also use your existing .astro components right away. No coding knowledge is required.
AI generated images
Get a relevant image the moment you need one. Use Zero to generate matching images in seconds using the latest AI image generation models. Or upload your own.
Live Preview
See every change on your actual Astro site as you type. Your real site, running your code, updating in real time. See how it looks on different screen sizes, or share the preview URL with others to get feedback.
Quality checks
Catch content issues such as SEO problems, typos, and broken links before publishing, or optimize your content for AI agents. Zero comes with 8 built-in quality checks and allows you to define custom ones where needed.
Issues reported by quality checks can quickly be fixed with the help of the AI assistant.
AI agent
Zero ships with an AI agent that works alongside you. Use it to plan, write, and update content across multiple files. It also generates images on demand and automates your content workflows with custom skills.
If you'd rather connect Claude or ChatGPT to Zero, it's also possible through Zero's MCP server.
Your content workflow, rebuilt for humans and agents alike. One workspace to create, review, and publish on-brand content with AI.
One workspace
Content, AI assistant, and live preview — every surface you use, side by side.
Schema-driven fields
Zero automatically reads Astro's Zod schemas and generates a visual editor for each field. No custom configuration is required.
No matter how complex your schema, all structures and content types are supported. Your team edits visually while the structure stays rock-solid underneath.
Visual Editor
Beautiful visual editor for Markdown, MDX, JSON, and YAML files. Add images, lists, tables, links, and more with just a few clicks. You can also use your existing .astro components right away. No coding knowledge is required.
AI generated images
Get a relevant image the moment you need one. Use Zero to generate matching images in seconds using the latest AI image generation models. Or upload your own.
Live Preview
See every change on your actual Astro site as you type. Your real site, running your code, updating in real time. See how it looks on different screen sizes, or share the preview URL with others to get feedback.
Quality checks
Catch content issues such as SEO problems, typos, and broken links before publishing, or optimize your content for AI agents. Zero comes with 8 built-in quality checks and allows you to define custom ones where needed.
Issues reported by quality checks can quickly be fixed with the help of the AI assistant.
AI agent
Zero ships with an AI agent that works alongside you. Use it to plan, write, and update content across multiple files. It also generates images on demand and automates your content workflows with custom skills.
If you'd rather connect Claude or ChatGPT to Zero, it's also possible through Zero's MCP server.
And a few more things that make Zero feel different from every other CMS you've tried.
Clean Git commits
Zero is a Git-based CMS: every publish lands as a proper, reviewable commit in your repo. No database, no vendor lock-in, just plain files. Your content lives where your code lives.
Real-time collaboration
Your whole team — writers, editors, marketers — can share a workspace and collaborate in real-time. Each change is automatically synced across users and devices, so everyone stays on the same content without a single commit or PR.
Zero integration required
Connect your GitHub repo and start editing. No SDK to install, no config file to maintain, no code changes to make. Your Astro schemas and components are the source of truth, keeping your repo clean and agent-friendly.
Adapts to your brand, standards and workflows
Give the AI your brand voice, style guide, and site-wide rules once. It applies them to every draft, every check, and every rewrite — so standards actually stick.
Stop fighting your CMS. Connect Zero to your actual production site in minutes.
01 Connect GitHub
Point Zero at your Astro repo. No SDK, no config files, no code changes. Your content structure is auto-detected in seconds.
02 Invite your team
Invite your whole team by email. Zero is built for non-technical people. No Git-knowledge or GitHub account is needed.
03 Write better content faster
Use AI where it makes sense and write the rest yourself. Zero is built for seamless human-agent collaboration.
Does Zero already work with your site? Three questions and you'll know.
Purpose-built for the whole team. Not just the developers.
Forget the CMS.
Before
Traditional CMSs want a config file in your repo, an SDK upgrade path, and a redeclared schema and component definitions that go stale the moment anyone touches the Astro side.
After
Zero reads your Astro schemas and components directly. No config, no SDK, no code changes. Your repository stays clean. Forget that a CMS even exists and keep using your existing git workflows.
Add an AI-ready CMS to your existing Astro site in minutes.
And see your team ship relevant content 10x faster than before.
From all of the CMS we've tried for Astro so far, Zero is the best CMS we've found. The live preview and change history are amazing. Nothing needed to be set up in our project.
If you're looking for a CMS that helps you create better content with integrated AI tools, Zero is an amazing choice.
Limited spots
Early partners
We're looking for a few teams that regularly publish content (landing pages, docs, blogs, or similar). In exchange for frequent feedback, you'll get free access for 3 months, double the AI credits, a say in what we build next, and a direct line to the founder.
Frequently asked questions
An AI-native CMS has been designed for AI agents from the ground up. In ZeroCMS, the AI can autonomously access your site and content to assist you with all kinds of content workflows from writing to publishing. AI-native CMSs also connect with external tools and services, such as Claude or ChatGPT, so users can use their own agents and models to work with their content.
Yes, ZeroCMS is a Git-based CMS. Your content stays as Markdown, MDX, YAML, and JSON files in your own GitHub repository, and every publish is an ordinary Git commit. What separates Zero from other Git-based CMSes is that it's AI-native and works without any plugins or code changes. It reads your Astro Zod schemas directly, so there's no content model to duplicate, and the built-in agent works across your files the way a developer would.
Yes, ZeroCMS works with any Astro v4-v7 site that uses content collections. We have tested Zero with some of the largest sites, including astro.build, the official Astro docs, Starlight, and the Cloudflare docs. If it works for them, it likely works for you!
No, they don't. Additional team members can be invited by email straight from the dashboard.
Yes, ZeroCMS fully supports monorepos. We only check out your actual Astro directory from within the repo to avoid cloning unrelated files, so the site needs to be self-contained. If you're concerned about security, you can also move the Astro site to its own repository and grant the GitHub app access only to that repository.
Not yet. ZeroCMS currently supports GitHub only.
Yes, you can share a link to the live preview with your team and clients. The preview is available to anyone with the link, without the need to log in.
Get started
Start editing your Astro site in minutes
Open the live demo and click around a real Astro site, or connect your own repo and see your content in Zero in under 10 minutes.
No credit card. No SDK. No code changes to your repo.