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Palmier

bridge your AI agents and your phone

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Hi HN — I built Palmier.Palmier bridges your AI agents and your phone.It does two things:1. It lets you use your phone to directly control AI agents running on your computer, from anywhere.2. It gives your AI agents access to your phone, wherever you are — including things like push notifications, SMS, calendar, contacts, sending email, creating calendar events, location, and more.A few details:* Supports 15+ agent CLIs* Supports Linux, Windows, and macOS* What runs on your computer and your phone is fully open source* Works out of the box — no need to set up GCP or API keys just to let agents use phone capabilities* Your phone can act as an agent remote: start tasks, check progress, review results, and respond to requests while away from your desk* Your phone can also act as an agent tool: agents can reach into phone capabilities directly when needed* Optional MCP server: if you want, Palmier exposes an MCP endpoint so your agent can access phone capabilities as native MCP tools. This is optional — you can also use Palmier directly from the phone app/PWA, with those capabilities already built in* Still in alpha stage, with bugs. Opinions and bug reports very welcomeThe basic idea is that AI agents become much more useful if they can both:* interact with the device you actually carry around all day* be controlled when you are away from your computerPalmier is my attempt at that bridge.It already works with agent CLIs like Claude Code, Gemini CLI, Codex CLI, Cursor CLI, OpenClaw, and others. You can run tasks on demand, on a schedule, or in response to events.Would especially love feedback on:* whether this feels genuinely useful* which phone capabilities are most valuable* which agent CLIs I should support next* what feels broken, awkward, or confusingSite: https://www.palmier.meGithub:* https://github.com/caihongxu/palmier* https://github.com/caihongxu/palmier-androidHappy to answer questions.

HN · launched Apr 21, 2026 · 7 upvotes (top 61%) · 0 views

Niche: computer and browser automation agents · 127 launches, 0 in the last 7 days ▼ -100% · Explore this niche →

Category and tags

  • Horizontal
  • Agent / copilot
  • Prosumer
  • AI-native
  • Commercial product

Visit website ↗ Source listing ↗

Could you build this?

Partial Creating a mobile companion app and CLI bridge is doable, but securely tunneling between a local desktop agent and mobile devices across NATs with push notifications and remote execution involves non-trivial networking.

What it would actually take: A real version requires a desktop daemon (Node.js/Go/Rust), a native or cross-platform mobile client (React Native/Flutter/Swift), and a relay server handling WebSockets/WebRTC signaling with end-to-end encryption. The difficult parts are reliable NAT traversal (STUN/TURN/wireguard-like tunnels), background push synchronization with APNs/FCM, and sandboxed remote command execution on the host machine. It demands solid expertise in network security and mobile background services.

Discussion

8 comments analyzed.

Competitors mentioned: mobile-use (UI automation), Hermes (agent runtime), OpenClaw (agent with tool approval), Claude Code (agent with tool approval)

Concerns raised: Security risk of agents having write access to sensitive data (SMS, email, contacts), Approval flow unclear for high-stakes actions like sending email, Weak safety model for agents without per-tool approval UX, Risk of agent executing uncontrolled actions on personal phone, Hidden execution behavior (routing, timing, provider handling) hard to observe

Feature requests: Per-action approval flow for agent tool calls, Independent phone numbers for agents to avoid sensitive data access, Better visibility/observability into agent execution details

Competitors

Other products that read as similar to this one : 334 launches clear the similarity bar, closest 8 shown.

Attention rank: #176 of 335 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 166 days after the earliest competitor.

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