Dylibso builds WebAssembly infrastructure and developer tools that enable plugin systems and user-defined code execution in platforms.

Key products include XTP (platform for building plugin systems), Extism (open-source universal plugin system), Chicory (Java-native WebAssembly runtime), and mcp.run (registry of AI tools for the Model Context Protocol).

Dylibso's tools are used in production by developer-facing platforms across the industry.