Aether
Aether is an open-source, self-hosted multiplayer runtime that lets engineering teams run and jointly steer AI coding agents like Claude Code and Codex on their own servers. Each run executes in an isolated container with its own git branch, surviving laptop shutdowns, while team members can take control, inject messages, and review changes collaboratively. The platform supports multiple agent harnesses, swarm orchestration, and conflict detection across concurrent runs.
- Developer Tools
- AI Agents
- Artificial Intelligence
- Software Only
Funding
Founders
Founder details are not available yet.
Product
Problem
AI coding agents typically run on developers' laptops, where they consume local CPU, RAM, and battery, and die when the lid closes or the network changes. Hosted agent platforms solve this by running code on vendor servers, but they charge per seat and keep the work off infrastructure the team controls.
Solution
Aether provides a self-hosted runtime that runs AI coding agents in containers on a Linux server the team owns. Each run gets its own container, git worktree, and branch, so agents keep working even when the developer's laptop is closed. The desktop app and web dashboard let the whole team watch runs live, steer agents by injecting messages into the transcript, and pull completed branches for review. Runs that stall or need input are flagged on a board, and a conflict radar warns when two runs touch the same file. The system ships with harnesses for Claude Code, Codex, OpenCode, omp, and pi, and supports registering custom agent CLIs. Team members can take control of a run, message agents with attribution, and collaborate across the same live session.
Target Audience
Primary users are software engineering teams and individual developers who want to run AI coding agents on their own infrastructure, including companies with compliance or data-control requirements that rule out hosted agent platforms.
Features
- Runs execute in isolated containers on the server, each with its own git worktree and branch, surviving laptop shutdowns and network changes
- Live board and map views sort runs by status, flag stalled runs with reasons, and show file-overlap warnings between concurrent runs
- Steering mode lets teammates inject messages into a run's transcript with attribution, while read-only mirrors are available for observers
- Swarm orchestration where an integrator run plans, waits for approval, then dispatches worker runs
- Conflict radar detects when two runs edit the same file and provides an advisory channel between them
- Harness system supports multiple agent CLIs out of the box (claude, codex, omp, opencode, pi, copilot, gemini, cursor, antigravity) plus custom harness registration via `aether agent add`
- Enhanced runs drive agents over the Agent Client Protocol, exposing plans, messages, tool calls, and diffs as native controls in the app
- Self-hosted under GPL-3.0 with the server running on hardware the team owns; network access is handled via SSH port, Tailscale, or an edge relay