Inyon

About Inyon

Inyon is a free, open-source tool (MIT license) that displays coding agent sessions running in tmux as chats on a phone or browser. It works with Claude Code, Codex, Gemini CLI, OpenCode, Copilot CLI, and Antigravity. When an agent asks a question, you tap a button on your phone and the response is typed into the same tmux pane, so your desktop session remains unchanged.

Review

Inyon addresses a specific friction point for developers who run multiple coding agents across different machines. Instead of walking back to the right computer to approve a test run or answer a prompt, you handle it from your phone. The tool reads tmux sessions directly and sends notifications when an agent is waiting for input.

Key Features

• Reads six coding agents already running in tmux and presents each session as a chat on Android or in a browser
• Converts permission prompts, menus, and questions into tappable buttons that type directly into the original tmux pane
• Pairs the Android app with a computer via QR code and communicates over an end-to-end encrypted tunnel or your own VPN
• Requires no account and nothing to host; each machine keeps its own subscription or API key
• Sends separate notifications when different sessions are waiting on an answer

Pricing and Value

Inyon is free and open source under the MIT license. There are no paid tiers, accounts, or hosted services to pay for. The npm package is published from CI with provenance, and releases are signed.

Pros

• No account creation or external hosting needed - setup is a single curl command per machine
• End-to-end encrypted tunnel keeps communication between phone and computer private
• Responses land in the same tmux pane, preserving the exact desktop context you left
• Open-source code with signed releases and CI provenance for the npm package
• Notifications arrive per session, so you can distinguish which agent needs attention

Cons

• No iOS app is available yet, though the maker has stated it is on the roadmap
• Three of the six supported agent readers are still in beta, so stability may vary across agents
• Inyon is not well suited for teams that don't use tmux or don't run coding agents in terminal sessions

Inyon fits developers who regularly run multiple coding agents inside tmux sessions on separate machines and want to respond to prompts without returning to each keyboard. It's less relevant for those working exclusively on a single machine or outside a terminal-based workflow. The tool's current limitations center on platform support and the beta status of half its agent readers.