host0

host0 skills

[skills.sh]

host0 hosts whatever your agent creates — HTML pages, sites, apps with a shared database, Markdown, PDFs — at a link you can share. This repo holds the host0 skill: it teaches any coding agent to publish a file or folder to a live https://<slug>.host0.app URL in one step.

Install

npx skills add host0-ai/skills

Works with Claude Code, Cursor, Codex, Antigravity CLI, Gemini CLI, GitHub Copilot, Windsurf, Cline and every other agent the skills CLI supports. Google moved Google AI Pro, Ultra and free users from Gemini CLI to Antigravity CLI on June 18, 2026; Gemini Code Assist Standard and Enterprise licenses and paid API keys keep Gemini CLI. Add -g to install it for all your projects. npx skills add https://host0.ai installs the same skill straight from host0.

No Node? One curl command installs the same files into your agent's skills folder. It uses no sudo and never overwrites a copy you changed without --force:

curl -fsSL https://host0.ai/install.sh | bash

As a plugin: the skill and the MCP server in one install

The skill publishes; the MCP server manages what's live (sharing, versions, analytics, shared data). The plugin brings both.

Claude Code:

/plugin install host0 --marketplace host0-ai/skills

Codex:

codex plugin marketplace add host0-ai/skills

Then install host0 from the plugin directory.

Gemini CLI:

gemini extensions install https://github.com/host0-ai/skills

Cursor supports the same plugin.json and mcp.json, but host0 isn't in its marketplace yet. Copy this repository to ~/.cursor/plugins/local/host0 and reload Cursor, or install the skill and the MCP server separately. We haven't run the plugin in Cursor.

Just the MCP server

Connect any MCP client to https://mcp.host0.ai/mcp. It's a hosted remote server (Streamable HTTP) with OAuth sign-in, so there's nothing to install or run. It manages apps you've already published and doesn't deploy: use the skill to publish.

Use it

Ask your agent:

• "Deploy this to host0"
• "Give me a link to this PDF"
• "Build a team todo list with a shared database and publish it"
• "Roll back the last deploy"

The first publish starts a device login: the agent shows a link and a short code, you approve it on host0.ai in your own browser, and the agent gets an API key. Nothing personal is typed into the chat.

What you get

• Private by default. Only you and people you invite by email can open an app. Open it to anyone with the link, or make it public on the web, when you want to.
• A shared database with no server code. Declare record collections in an h0.json and the app's frontend reads and writes them on its own origin.
• Versions and one-click restore, cookieless analytics, and a readable URL whenever you rename it.
• Any file or folder: a static site, a single HTML page, a PDF, images, video, Markdown.

There is a free plan. Docs: host0.ai/docs.

Skills

Source

This repo is a mirror. The skill is developed alongside the host0 platform and synced here on every change, so the copy at host0.ai/skill.md and this one are always the same. Report issues at [email protected] or open an issue here.

License

MIT