Show HN: WebMCP Core – AI agent tool definitions from any site (github.com)

A new tool called WebMCP Core has been introduced to streamline the process of defining AI agent tools from any website. By pointing the tool at a URL, it automatically crawls the site to identify forms, API calls, and interactive elements. This results in structured tool definitions compatible with Chrome's navigator.modelContext API, which is part of the WebMCP standard, thus avoiding the inaccuracies of screen-scraping. The tool supports widely used frameworks such as Next.js, React, and Vue, and it offers both imperative and declarative API support for registering tools. The significance of WebMCP Core lies in its potential to standardize how AI agents interact with web applications, enhancing their capabilities to execute actions directly through dedicated APIs rather than relying on parsing HTML or JavaScript. This ensures a more reliable and efficient interaction model for AI systems. The tool’s integration with Playwright for site crawling and its ability to generate various output formats (like TypeScript, React hooks, or HTML embeds) makes it versatile for developers. Furthermore, support for future browsers like Edge emphasizes its forward-looking design, but current usage requires Chrome 146 or later with specific experimental settings enabled. Overall, WebMCP Core is poised to enhance the development and functional capabilities of AI/ML tools within existing web ecosystems.