Chrome 149 shipped WebMCP — a browser-native API that lets web pages expose structured tools to AI agents via navigator.modelContext. The ecosystem is forming fast: webmcp-core crawls live sites to auto-generate tool definitions, and @webmcp-registry/kit provides a runtime SDK with Zod-based defineTool().
What's missing is build-time codegen from your existing TypeScript. If you already have typed interfaces for your API, you shouldn't have to rewrite them as Zod schemas or wait for a crawler to discover them.
webmcp-gen fills that gap. Write your API as TypeScript interfaces, run one command, get spec-compliant WebMCP tool definitions + handler stubs with security best practices baked in.
Where it fits
Tool
