Extending AI Agents with WebAssembly

From the creator

On this episode, we learned about Wassete, A security-oriented runtime that runs WebAssembly Components via MCP. Wassette is a secure, open-source Model Context Protocol (MCP) server that leverages WebAssembly (Wasm) to provide a trusted execution environment for untrusted tools. MCP is a standard how LLMs access and share data with external tools. By embedding a WebAssembly runtime and applying fine-grained security policies, Wassette enables safe execution of third-party MCP tools without compromising the host system. Why Wassette? Convenience: Wassette makes it easy to extend AI agents with new tools, all without ever having to leave the chat window. Reusability: Wasm Components are generic and reusable; there is nothing MCP-specific about them. Security: Wassette is built on the Wasmtime security sandbox, providing browser-grade isolation of tools. Resources: GitHub Repo: https://github.com/microsoft/wassette/ 📌 Let's connect: Jorge Arteiro | https://www.linkedin.com/in/jorgearteiro Yosh Wuyts | https://www.linkedin.com/in/yoshuawuyts/ Subscribe to the Open at Microsoft: https://aka.ms/OpenAtMicrosoft Open at Microsoft Playlist: https://aka.ms/OpenAtMicrosoftPlaylist 📝Submit Your OSS Project for Open at Microsoft https://aka.ms/OpenAtMsCFP New episode on Tuesdays!

Published 2026-05-26 · Watch on YouTube ↗
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