mcp.run

mcp.run is a Dylibso platform for discovering, installing, and running MCP servers as portable, sandboxed Wasm servlets, featuring a dynamic reprogrammable MCP server that lets clients install tools on demand.

mcp.run is part of the fast-growing MCP ecosystem, providing a registry and runtime for MCP servers ('servlets') that give AI assistants access to tools, data, and integrations. Built by Dylibso — known for its WebAssembly tooling — mcp.run packages tools as portable, sandboxed Wasm servlets that can run across environments, addressing security and portability concerns that come with connecting agents to external capabilities. A notable feature is its dynamic, reprogrammable MCP server: rather than statically wiring up every tool, a client can connect once and then discover and install additional MCP servers from mcp.run on demand. This makes it easier to extend an agent's toolset without reconfiguring clients, and the Wasm sandbox model helps contain what installed tools can do. The broader MCP ecosystem grew rapidly through 2026, with the specification reaching a major release and hundreds of servers cataloged across categories. mcp.run positions itself as infrastructure for teams building on MCP who want a curated, portable, and secure way to distribute and run tools for their agents.