Cezar runs agents 24/7 on your server. Open source

Open Mercato released cezar, a free MIT-licensed open-source orchestrator that runs Claude Code, Codex, OpenCode and other coding agents in parallel on a laptop or VPS using existing agent subscriptions rather than API keys. Created by Patryk Lewczuk, cezar gives each task its own git worktree, gates every step on workflow checks such as npm test, and queues runs that survive restarts, with a one-command Ubuntu VPS install (`npx cezar-run server-install --platform ubuntu-vps`) adding HTTPS and a login. The tool requires macOS, Linux or WSL2 with Node 20+, needs no account or database, and is pitched at developers who want backlog issues turned into reviewable pull requests while offline.

Issues straight to agents Hand a GitHub, Jira or Linear issue to an agent in one click. The PR comes back to you. cezar runs Claude Code, Codex, OpenCode and other coding agents in parallel on your laptop or a VPS, on the subscriptions you already pay for. No API keys. Queue the backlog, close the laptop, review the PRs from your phone. macOS, Linux and WSL2, Node 20+. Free and open source MIT . No account, no database. Watch the demo https://www.youtube.com/watch?v=nNLJm9gArnE Introducing cezar Queue tasks, hand over GitHub, Jira or Linear issues, or let automations start runs on a schedule. cezar drains the queue in parallel worktrees, runs your checks after every step, and has the PRs waiting for review when you are back. The night shift Schedules, GitHub polls and tracker events start runs while you are offline. When every slot is busy, new runs wait in the queue. Every run gets its own worktree and its checks, and the PRs wait for you in the morning. Start tasks, answer questions and review the diff from wherever you are. Dispatch Switch on Dispatch and a big task splits itself. The thinking stays on a strong model, the routine work goes to a cheaper one, and every result reports back to you. Costs are illustrative. Take the tour Type what you want done, in plain words. The problem Laptop-bound Agents live in a terminal session. Close the laptop, lose Wi-Fi or go to bed, and the run dies with it. One at a time The rest of the backlog waits in your head, not in a queue. Nothing moves unless you are typing. No guardrails Nothing runs your tests before the agent calls it finished. You find the breakage in review. Token bills Orchestrators usually want API keys billed per token, on top of the subscription you already pay for. What is cezar Config steps 0 No setup. cezar picks up the agent CLIs you already have installed Uptime 24/7 One command puts it on a VPS with HTTPS and a login Agents Mix Claude Code, Codex, OpenCode and more. Pick one per step Price $0 MIT open source. You pay only for the plans you have FAQ An open-source orchestrator for AI coding agents. It runs Claude Code, Codex, OpenCode and other coding agents in parallel, each task in its own git worktree, on your laptop or 24/7 on a server, with a web cockpit to watch, steer and review everything. No. cezar drives the agent CLIs you are already logged into, so runs use the subscriptions you already have. There is no cezar account and no database either. Claude Code, Codex, OpenCode and pi today, with more added as new agent CLIs come out. Pick one per task or per workflow step, and switch a task’s runner, model or account mid-thread without losing the conversation. Run npx cezar-run server-install --platform ubuntu-vps . It sets up HTTPS, a login and a system service, so the cockpit is reachable from anywhere, phone included. Prefer not to run a server? Try it on Open Mercato Cloud https://openmercatocloud.com/247agentic-cear . As many as your machine can handle. Set a parallel limit for the workspace or per project and the rest waits in a queue that survives restarts. Running tasks can dispatch subtasks of their own, and a memory ceiling pauses heavy runs so the queue keeps moving. Not without you. Workflow checks like npm test gate every step exit 0 means pass and failures go back to the agent to retry. Every run with changes waits at a review gate, and nothing merges on its own. Automations: a schedule, a GitHub poll, a PR review, or a Jira or Linear event. With Autonomous on, the run never stops to ask and finishes with the PR ready for review. cezar is free, MIT-licensed open source. You pay only for the agent plans you already have, and the Dashboard shows reported usage and cost per task and project. cezar was created by Patryk Lewczuk at Open Mercato https://www.openmercato.com/ , the open source CRM/ERP framework company founded by Piotr Karwatka, who previously co-created Divante, Open Loyalty and Vue Storefront later Alokai, a Y Combinator company with a $40M Series A . Development happens in the open at github.com/open-mercato/cezar https://github.com/open-mercato/cezar . Yes. CEZ DRY RUN=1 npx cezar-run starts the cockpit with a built-in mock agent, so you can look around first. Run one command and the agents you already pay for get a task queue, workflows that run your tests, and a cockpit you can open from anywhere. You need Node 20+ and at least one logged-in agent CLI, such as claude, codex or opencode.