Tools for running coding agents in parallel
One agent at a time means waiting on it. These tools run several Claude Code, Codex, Pi or OpenCode sessions at once and show you which one needs you. Farol, Corgi, Palomino, Halv and Frink give each agent its own pane, most with a Git worktree per task. pi-cowboy and Handshake split a job across agents. agent-relay and Parley let sessions talk to each other, so you stop copying context between terminals. 9 tools, in the order they appear in the directory. This is not a ranking.
Grouped by job: Claude Code Tools · AI Coding Agents
Farol
Free open-source macOS terminal for running Claude Code and Codex in parallel with status sidebar and git worktrees.
pi-cowboy
Open-source (MIT) multi-agent orchestrator for the Pi coding agent that runs Pi, Claude Code, Codex or OpenCode as parallel subagents in isolated copy-on-write Git worktrees inside Herdr panes.
Frink
Open-source (MIT) desktop app for macOS and Linux to run parallel coding agents and multi-step Flows triggered by schedules, webhooks or events from Linear, Sentry, PostHog, Vercel and more, with approval steps and a Work Queue; runs locally with the AI coding tool you already use, no account.
Handshake
Native macOS workspace for coordinating coding agents, formerly Twine: controlled workflows, visual traces and cross-agent memory, with roles filled by Codex, Claude Code, OpenCode, pi, Antigravity, OMP or Kiro CLI. Apple Silicon, macOS 26+, MIT-licensed.
Halv
Desktop workspace that runs Claude Code, Codex, Kimi and GLM side by side on the plans you already pay for, with up to 32 live panes, a local code index and context compression to cut token spend. The app is open source (Apache 2.0) on macOS, Windows and Linux; optional Halv Cloud routing is $10/month.
Corgi
Open-source (MIT) terminal and agent multiplexer for macOS, Linux and WSL: shows what each Claude Code, Codex, Pi or OpenCode agent is doing and which needs you, keeps sessions running in the background like tmux, and tracks worktrees, changed files and per-workspace resource usage.
agent-relay
Open-source (MIT) relay that lets coding sessions from different vendors work together, tested with Claude Code and Codex: one session leads, the other follows, the relay passes each turn across, records it on your disk and stops when something needs your decision, with a web console to watch and answer. macOS, Python 3.11+.
Parley
Open-source (Apache-2.0) single Go binary that puts your Claude Code, Codex and OpenCode sessions on one local IRC channel with you, so they tell each other when something changes and ask when they need input; you read every line in any IRC client, only your nick carries authority, and a breaker stops runaway loops until you write.
Palomino
Free Mac app written in Rust for running Claude Code, Codex and Pi side by side in one window, with GPU-rendered terminals, browsers and files, unlimited workspaces and no account required; Windows and Linux have a waitlist.
Where it runs, which agents, what it costs.
Straight from each vendor's own pages. Plans move often, so the check date is below.
| Tool | Runs on | Agents it drives | Open source | Price |
|---|---|---|---|---|
| Farol | macOS 14 or later on Apple silicon. Built on libghostty. | Claude Code and Codex with live status. Any other terminal agent through Farol's CLI or the terminal bell. | Yes, MIT. | Free. |
| pi-cowboy | Pi package. Agents run in Herdr panes, each in a copy-on-write Git worktree. | Pi, Claude Code, Codex, OpenCode, pig and pi-bolt as subagents, with handover between them. | Yes, MIT. | Free. No paid plan listed. |
| Frink | macOS and Linux, running locally. | The coding agents you already use. Imports MCP servers, skills and commands from Claude Code, Codex and Cursor. | Yes, MIT. | Free, no account needed. |
| Handshake | macOS 26 or later on Apple Silicon. | Codex, Claude Code, pi, Antigravity, OMP, OpenCode and Kiro CLI, in roles you set. | Yes, MIT. | Free. No paid plan listed. |
| Halv | macOS (Apple silicon and Intel), Windows x64, Linux x64. | Claude Code, Codex, Kimi and GLM, each on the plan you already pay for. | Yes, Apache-2.0: the app and its local engine. | Free. Halv Cloud routing is $10/mo. |
| Corgi | macOS, Linux and WSL. | Claude Code, Codex, Pi, OpenCode and omp. | Yes, MIT. | Free. No paid plan listed. |
| agent-relay | macOS, Python 3.11 or newer. | Tested with Claude Code and Codex: one session leads, one follows. Adapters for other agents. | Yes, MIT. | Free. No paid plan listed. |
| Parley | One Go binary plus a local ergo IRC server. | Claude Code, Codex and OpenCode, posting to one IRC channel with you. | Yes, Apache-2.0. | Free. No paid plan listed. |
| Palomino | Mac. Windows and Linux have a waitlist. | Claude Code, Codex and Pi. | No license stated. | Free, no account needed. |
Checked 2026-10-31. Sources: Farol, Corgi, Corgi on GitHub, Palomino, Halv, Frink, Frink on GitHub, pi-cowboy on GitHub, Handshake, Handshake on GitHub, agent-relay on GitHub, Parley on GitHub.
Pick it if.
- FarolYou're on an Apple silicon Mac and want a worktree per task, with diff review and a pull request in the same app.
- CorgiYou live in the terminal, on Linux or WSL too, and want tmux-style sessions that know which agent needs you.
- PalominoYou want Claude Code, Codex and Pi in one Mac window, with terminals, browsers and files next to them.
- HalvYou run Claude Code and Codex on your own plans, on any desktop OS, and want to cut the token bill.
- FrinkYou want parallel agents plus Flows that start on a schedule, a webhook or a new ticket, with approval steps.
- pi-cowboyYou use Pi and want it to split a big job into subtasks for background agents, then hand sessions between harnesses.
- HandshakeYou want fixed roles, like Codex implementing and Claude Code reviewing, with a trace of every handoff.
- agent-relayYou plan in one vendor's agent and build in another, and want turns passed across until a decision needs you.
- ParleyYou keep a few long-running sessions going and want them to keep each other current in a channel you can read.
Each listing.
The directory page, alternatives in the same category, and a head-to-head where we have one.
- FarolAlternatives
- pi-cowboyAlternatives
- FrinkAlternatives
- HandshakeAlternatives
- HalvAlternatives
- CorgiAlternatives
- agent-relayAlternatives
- ParleyAlternatives
- PalominoAlternatives
Category pages list every tool in those categories, including ones left off this page. Built one of these? Get it featured in its category.
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