- Published on
Grok-iOS β remote Grok Build from your iPhone over ACP
- Authors
- Name
- DeepHorus
A new open-source iOS application, Grok-iOS, enables users to remotely control Grok Build from an iPhone over the Agent Communication Protocol (ACP). Developed by Pedro Shakour and released under the Apache-2.0 license, the app transforms the iPhone into a pager-like user interface while the core agent runs on a macOS machine. This development brings mobile accessibility to xAI's Grok ecosystem, allowing developers to monitor and interact with builds on the go.
Grok Build is a build system associated with xAI's Grok AI model, though specific details remain scarce. The client leverages the official grok agent serve command, which communicates via WebSocket using ACP/JSON-RPC. The project requires a Mac with the Grok CLI installed, an xAI API key, Xcode 16 or later, and iOS 17 or newer. Users must set up the environment by exporting the API key and running the agent serve command before launching the app.
Setup involves cloning the repository with submodules, exporting the XAI_API_KEY, and killing any process on port 2419. Running grok agent serve generates a secret, which the app uses to connect. A script run-simulator-demo.sh simplifies launching on iOS Simulator, while a stub demo is available for CI environments without an API key. The companion legacy LAN bridge (TLS + Bonjour) exists for experiments, but the default path uses the official agent serve.
This project significantly lowers the barrier for mobile interaction with AI agent workflows. Developers can now monitor and interact with Grok Build tasks from their iPhone, turning it into a remote control for complex builds. It highlights the trend of mobile-first development tools and the expansion of xAI's ecosystem beyond desktop. The open-source nature encourages community contributions and customizations.
While the project has not received widespread attention yet, its inclusion of themes and slash names from upstream Grok Build suggests integration with existing tools. The developer emphasizes that the agent runtime stays on the Mac, ensuring heavy computation remains local. However, the app is not available on the App Store, limiting distribution to sideloading or simulator use, which may affect adoption by less technical users.
Looking ahead, the project could evolve to support more features, such as direct builds from the iPhone or integration with other AI agent systems. The use of ACP suggests potential compatibility with other agents. As xAI continues to develop Grok, mobile interfaces like this may become more common. Despite the reliance on a local Mac and API key, Grok-iOS represents a significant step toward mobile-first AI tooling.
