Palmier bridges AI agents and mobile phones via open-source tool
Palmier is an open-source tool built by caihongxu that lets AI agents running on a computer interact with a user's phone — and lets users remotely control those agents from their phone — supporting 15+ agent CLIs across Linux, Windows, and macOS.
Score breakdown
Developers running agentic coding workflows can use Palmier to monitor and control long-running agent tasks from their phone and give those agents real-world reach — like sending SMS or reading calendar data — without any cloud infrastructure setup.
- 01Palmier is an open-source, alpha-stage tool that bridges AI agents on a computer with a user's smartphone.
- 02The phone can act as a remote control: start tasks, check progress, review results, and respond to agent requests away from the desk.
- 03Agents can access phone capabilities directly, including push notifications, SMS, calendar, contacts, email, and location.
Palmier, posted to Hacker News by its author caihongxu, is an open-source bridge between AI agents running on a computer and a user's smartphone. The project addresses two complementary problems: agents are more useful when they can interact with the device a person carries all day, and users need a way to control agents when away from their desk.
Alternatively, agents can reach into the phone directly as a tool, accessing capabilities such as push notifications, SMS, calendar events, contacts, email, and location data.
The tool works in both directions. The phone can act as an agent remote — allowing users to start tasks, monitor progress, review results, and respond to agent requests from anywhere. Alternatively, agents can reach into the phone directly as a tool, accessing capabilities such as push notifications, SMS, calendar events, contacts, email, and location data. Palmier works out of the box without requiring external cloud infrastructure like GCP or third-party API keys for basic phone capabilities.
For developers who want deeper integration, Palmier optionally exposes an MCP server endpoint so agents can access phone features as native MCP tools. The project currently supports 15+ agent CLIs — explicitly naming Claude Code, Gemini CLI, Codex CLI, Cursor CLI, and OpenClaw — and runs on Linux, Windows, and macOS. Both the computer-side and phone-side components are fully open source. The project is self-described as alpha-stage, and caihongxu is actively soliciting feedback on useful phone capabilities, additional CLI support, and bug reports.
Key facts
- 01Palmier is an open-source, alpha-stage tool that bridges AI agents on a computer with a user's smartphone.
- 02The phone can act as a remote control: start tasks, check progress, review results, and respond to agent requests away from the desk.
- 03Agents can access phone capabilities directly, including push notifications, SMS, calendar, contacts, email, and location.
- 04Supports 15+ agent CLIs, explicitly including Claude Code, Gemini CLI, Codex CLI, Cursor CLI, and OpenClaw.
- 05Works on Linux, Windows, and macOS with no GCP setup or API keys required for basic use.
- 06An optional MCP server endpoint exposes phone capabilities as native MCP tools.
- 07Both the computer-side and phone-side components are fully open source, with an Android repo published separately.