Clawless

ClawLess is a serverless runtime that runs AI agents entirely inside the browser. It uses WebContainers to provide a full sandboxed Node.js environment in WebAssembly, with a built in editor, terminal, live preview, policy engine and audit log, so an agent can write code, install npm packages, build files and preview apps without a backend and without access to the host machine. It is intended for developers who want to try, observe and control agents safely. Agents built on the GitAgent standard can be loaded into the workspace, and the model is chosen by adding an API key for Anthropic, OpenAI or Google Gemini. A declarative YAML policy defines what an agent may read, write, spawn or reach over the network, and every process spawn, file operation, network request and policy denial is logged with filters by source, level and event type. Sensitive headers such as API keys are masked, and the full audit log can be downloaded for compliance or debugging. A pluggable SDK, published on npm as clawcontainer, supports template based agent bootstrapping for embedding the runtime elsewhere. ClawLess is free and open source under the MIT licence, and the hosted playground at play.clawless.io costs nothing to use; model usage is billed by whichever provider's key is supplied. No paid plan is published. The project was built by Shreyas Kapale at Lyzr and is maintained under the open GitAgent organization on GitHub.