Just Publish

Just Publish MCP Server

Publish and update the website you built with AI at a live public URL. Sign-in required.

Just Publish puts the website you built with AI live at a public address. Your assistant makes the files; Just Publish publishes them at a justpublish.site address that anyone can open, and keeps them there. You sign in once with your Just account, and every site belongs to the account that published it. A published site can later run at a domain you own.

• Website: https://justpublish.ai
• MCP endpoint: https://mcp.justpublish.ai/
• Registry name: ai.justpublish/just-publish
• Transport: Streamable HTTP (remote, nothing to install)
• Authorization: OAuth 2.1 with dynamic client registration. The client opens a sign-in window the first time (Google or a code sent by email).

Connecting

Add the endpoint to your client's MCP servers and sign in when it asks:

{
  "mcpServers": {
    "just-publish": {
      "type": "streamable-http",
      "url": "https://mcp.justpublish.ai/"
    }
  }
}

The client discovers the authorization server from the endpoint, so there is no API key, client id or secret to paste. In Claude, add the connector at https://mcp.justpublish.ai/claude; in Claude Code:

claude mcp add --transport http just-publish https://mcp.justpublish.ai/claude

Step-by-step guides for each assistant and editor are at https://justpublish.ai/install.

Tools

Tool	What it does
deploy	Publishes a site from its files and returns its public address.
get_site_files	Reads the files of a published site.
update_site_file	Changes one file of a published site and puts the change live.
list_sites	Lists the sites on the signed-in account.

The account comes from the sign-in, so deploy takes no email address and the signed-in person's own sites need only a site_id.

Resources

Static Markdown guidance the client can load before it picks a tool:

Resource	Purpose
just-publish-overview	What Just Publish is and which tool to use when.
just-publish-edit-lifecycle	The read, edit and update loop.
just-publish-file-conventions	Paths, encoding, size limits, routing.
just-publish-invariants	index.html required; deploy replaces, update_site_file merges.

Agent skill

This repository also hosts the just-publish skill in the SKILL.md format, which teaches an agent the publish flow before it calls a tool. Add it, with the Just Domain skill, to any agent that reads Agent Skills:

npx skills add just-done/skills

To install this copy in Codex, give the skill installer this tree:

https://github.com/just-done/just-publish-mcp/tree/main/skills/just-publish

or copy skills/just-publish/ into ~/.codex/skills/ (or ~/.claude/skills/). The same package is listed for discovery at justpublish.ai/.well-known/agent-skills/index.json.

Good to know

• Static sites only. HTML, CSS, JavaScript, images and fonts, with index.html at the root. No build step and no server code.
• Your own domain. Connect a domain you own from the dashboard at justpublish.ai.

About this repository

Public metadata and the registry listing for the Just Publish MCP server: server.json, .mcp.json, icons, the skill and this README. The server runs at https://mcp.justpublish.ai/; its source is not part of this repository. Just Publish is operated by Just Done LLC.

License

MIT. See LICENSE.