Webmcp Kit

WebMCP Kit

Make your website or web app agent-ready. WebMCP Kit is a coding-agent plugin that adds WebMCP tools to your site or application, so browser agents can act through your app's own logic instead of scraping the page.

It reads your repo, proposes a tool plan, waits for your approval, implements the tools with @nekuda/webmcp-sdk, and verifies them in a real browser. Everything runs locally — your code never leaves your machine; there is no hosted scanner.

Works with Claude Code, Codex, and Cursor.

Install

Claude Code

Codex

Or run /plugins inside Codex and install it from the browser there.

On Codex, installing also registers the plugin's lifecycle hooks (PreToolUse/Stop) — they only ferry feedback from the live review UI back to the agent, and you can inspect them anytime with /hooks.

Cursor

This installs all three Agent Skills for Cursor: implement, verify, and connect-existing-tools.

Package for the OpenAI Platform

Build the skills-only ZIP accepted by the OpenAI Platform plugin uploader:

The archive is written to dist/webmcp-kit-.zip. It includes the Codex manifest, brand assets, and all three skills, and leaves out repository files and the lifecycle hooks used by the full marketplace install.

Prerequisites

- Claude Code, Codex, or Cursor
- A website or web app you can run locally — any stack, the plugin adapts
- Bun *(optional)* — powers the live review UI; without it you review the plan in chat
- Chrome 150+ with the WebMCP flag enabled (chrome://flags) — used to verify tools in a real browser

Use

Open your repo in your agent and ask it to make your website or web app agent-ready (Claude Code: /webmcp-kit:implement; Cursor: /implement). Then:

1. Plan — it maps your routes, forms, and data layer, and proposes a small set of tools.
2.…