Wassette MCP Runtime

Microsoft's Wassette is a security-oriented MCP runtime for loading and running WebAssembly Components as reusable agent tools. It uses the Wasmtime sandbox to isolate tools, making it useful for teams that want MCP extensibility with a stronger execution boundary than ordinary local scripts.

{
  "mcpServers": {
    "wassette": {
      "command": "wassette",
      "args": [
        "serve"
      ]
    }
  }
}