We build the interface layer between AI agents and people: Guuey, the hosted agent platform, and ggui, the open protocol beneath it.
Agents can decide and act, but most of them still talk to people through walls of chat text. They can think, but they cannot show. We close that gap in two parts: a commercial platform and an open protocol.
Ship an agent, get a product.
Guuey is our hosted agent platform. You describe your agent in plain English, and Guuey deploys it as a working product: hosted runtime, managed MCP servers and LLM keys, generative UI on by default. Every app gets its own URL you can hand to a teammate, and a hard monthly spend cap, so an experiment stays an experiment.
The interface layer for agents.
ggui is an open protocol and runtime for generative UI over MCP. An agent describes what it needs in natural language, and ggui generates a production-quality, interactive interface and streams it to the person in real time. It works in both directions: what the person enters flows back to the agent as structured data. Apache-2.0, self-hostable, and built for any MCP-compatible agent framework; tested with the Claude Agent SDK, the OpenAI Agents SDK, and Google ADK.
$ npx @ggui-ai/create-agentic-app
Guuey runs on ggui: the platform is commercial, the protocol is open. If ggui spreads further than Guuey does, that is the plan working.
We keep the load-bearing pieces in the open, on purpose. A protocol only matters if people can build on it without asking us first, and public repositories are the quickest way to check that a small company ships.
[1] ggui. The ggui protocol and its reference runtime for generative UI over MCP. Apache-2.0, at release candidates. New projects start with npx @ggui-ai/create-agentic-app. github.com/ggui-ai
[2] Silver Protocol. AgJSON, an open, neutral, typed transport for normalized agent-framework I/O: one wire format across the Claude Agent SDK, OpenAI Agents SDK, Google ADK, and Vercel AI SDK. Deliberately neutral, because a transport that favors one vendor is not a transport. MIT, draft spec. github.com/silverprotocol
[3] Guuey SDKs. The open-source surface of Guuey: the CLI, the SDKs, and the Worker Protocol, the contract your agent code implements. MIT, early releases. github.com/withguuey
Loqu, Inc. is a software company founded in 2025 by Wanseob Lim. We believe the next generation of software is agents that meet people through real interfaces. We build the platform, the protocol, and the open specifications that make that effortless.
Wanseob Lim · GitHub · LinkedIn · X