OpenBot vs sandbase-harness
Self-hosted AI agent platforms compared
OpenBot and sandbase-harness both help teams run AI agents on infrastructure they control, with tools and audit capabilities. OpenBot centers on governed AI coworkers with isolated browser and file environments, while sandbase-harness provides a runtime for persistent agent sessions, sandboxed tools, and multiple deployment backends.
OpenBot: Govern AI Coworkers Through AG-UI
OpenBot is a self-hosted AI coworker platform built on AG-UI, the protocol that lets agents from different frameworks connect. Each agent gets its own browser and files, while a policy gateway decides and records actions before they happen.
sandbase-harness: Run Self-Hosted AI Agents with Sandboxed Tools
SandBase Harness is a local-first AI agent runtime and MCP bridge, with a built-in Console and Anthropic Claude Managed Agents-style API. It provides sessions, sandboxed tools, memory, credential controls, and audit and replay on your own machine or infrastructure.
| OpenBot | sandbase-harness | |
|---|---|---|
| Language | TypeScript | TypeScript |
| License | MIT | Apache-2.0 |
| Stars | 6.8k | 639 |
| Forks | 926 | 80 |
| Last analyzed | Oct 21, 2026 | Oct 19, 2026 |
Key differences
- OpenBot connects agents through AG-UI and provides each coworker a separate computer environment; sandbase-harness manages agent sessions through its runtime, Console, CLI, SDK, and API.
- OpenBot routes browser, file, shell, and MCP actions through policy and audit controls; sandbase-harness emphasizes session history, replay, sandbox backends, approval gates, and credential vaults.
- OpenBot is a customizable template with a web interface for managing coworkers; sandbase-harness is a runtime with local storage by default and support for local processes, Docker, Kubernetes, and self-hosted workers.
- OpenBot uses the MIT license; sandbase-harness uses Apache-2.0.
- OpenBot is identified as alpha and requires Docker, Bun 1.3 or later, CopilotKit Intelligence, and a model key for local setup; sandbase-harness requires Node.js 22 or newer and a model provider API key, while Docker is optional.
- OpenBot is aimed at teams adapting an agent platform and governing coworker actions; sandbase-harness targets developers and infrastructure teams operating agent sessions. Both projects are TypeScript applications.
Choose OpenBot if you…
- need isolated browser and file environments for AI coworkers.
- want to connect custom AG-UI agents and govern their computer actions with policies and audit records.
- plan to customize a self-hosted template for team workflows.
Choose sandbase-harness if you…
- need persistent sessions with resumable event streams, history, and replay.
- want sandbox options including local processes, Docker, Kubernetes, or self-hosted workers.
- need a local Console, CLI, TypeScript SDK, and API for operating agent sessions.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.