Run Clawdbot/Moltbot on Cloudflare with Moltworker

Summary

The Internet woke up this week to a flood of people buying Mac minis to run Moltbot (formerly Clawdbot), an open-source, self-hosted AI agent designed to act as a personal assistant. Moltbot runs in the background on a user's own hardware, has a sizable and growing list of integrations for chat applications, AI models, and other popular tools, and can be controlled remotely. Moltbot can help you with your finances, social media, organize your day — all through your favorite messaging app.But what if you don’t want to buy new dedicated hardware? And what if you could still run your Moltbot efficiently and securely online? Meet Moltworker, a middleware Worker and adapted scripts that allows running Moltbot on Cloudflare's Sandbox SDK and our Developer Platform APIs. A personal assistant on Cloudflare — how does that work? Firstly, Cloudflare Workers has never been so compatible with Node.js. Where in the past we had to mock APIs to get some packages running, now those APIs are supported natively by the Workers Runtime.This has changed how we can build tools on Cloudflare Workers. When we first implemented Playwright, a popular framework for web testing and automation that runs on Browser Rendering, we had to rely on memfs. This was bad because not only is memfs a hack and an external dependency, but it also forced us to drift away from the official Playwright codebase. Thankfully, with more Node.js compatibility, we were able to start using node:fs natively, reducing complexity and maintainability, which makes upgrades to the latest versions of Playwright easy to do.The list of Node.js APIs we support natively keeps growing. The blog post “A year of improving Node.js compatibility in Cloudflare Workers” provides an overview of where we are and what we’re doing.We measure this progress, too. We recently ran an experiment where we took the 1,000 most popular NPM packages, installed and let AI loose, to try to run them in Cloudflare Workers, Ralph Wiggum as a "software e...