Ouroboros
Ouroboros is an open-source, general-purpose AI agent whose identity, durable memory, and history continue across tasks and restarts. It works on external projects, coordinates a live swarm of specialist agents, and can rewrite the implementation it runs on, including its code, architecture, prompts, tools, and dependencies. Reflection can also change how it understands itself without severing that continuity.
It runs as a native desktop app or through a headless CLI. The runtime keeps its repository, durable memory, history, and interface on your machine, while model inference can use remote APIs you configure or a local GGUF model.
Ouroboros sends no telemetry by default, and the official project operates no usage or crash-report collection. A deployment can connect its own monitoring tools to its local records and choose what they receive; local history stays on the machine either way. Requests through OpenRouter carry the app name, which OpenRouter uses for its public app statistics.
Changing Ouroboros? Coding agents and people must read CONTRIBUTING.md before editing. It defines the required project context, verification, and separate-agent review flow.
Download Ouroboros
Just want to use Ouroboros? Click the download for your platform below. You do not need to clone this repository or install Python or uv.
Desktop downloads bundle CPython 3.10.22 and SQLite 3.53.1. In-app Update replaces the repository and its packages, not that interpreter: install the app again to get this runtime.
Android (experimental, Magisk-rooted ARM64): Installation and qualification guide. Its USB setup requires Python and adb.
Files named SHA256SUMS, release-evidence.json, release-smoke-*.json, and sbom-*.cdx.json are verification evidence, not additional installers.
macOS quick start
- Click Download for macOS (.dmg). The current file is named
Ouroboros-<version>.dmg.
- Open the DMG and drag
Ouroboros.app onto the Applications shortcut.
- Open Ouroboros from Applications. If macOS refuses to open it, choose Open Anyway in System Settings → Privacy & Security (on macOS 14 and earlier, right-clicking the app and choosing Open also works).
On macOS 12 the app runs, but its browser tools refuse Chromium: the patched build they pin needs macOS 13 or later, and Ouroboros never falls back to an older Chromium. WebKit stays a separate choice where Playwright supports it.
Homebrew on macOS
Homebrew can install and update the same notarized app. This repository is its own tap:
brew tap razzant/ouroboros https://github.com/razzant/ouroboros.git
brew install --cask razzant/ouroboros/ouroboros
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