---
title: Harness Runtime SDK Reference (public)
description: Reference for the official DigitalOcean Python, TypeScript, and Go client libraries for managing Harness Runtime sessions, agent configs, and …
product: Managed Agents
url: https://docs.digitalocean.com/products/managed-agents/agent-harness-runtime/reference/sdk/
last_updated: "2026-11-11"
---

> **For AI agents:** The documentation index is at [https://docs.digitalocean.com/llms.txt](https://docs.digitalocean.com/llms.txt). Markdown versions of pages use the same URL with `index.html.md` in place of the HTML page (for example, append `index.html.md` to the directory path instead of opening the HTML document).

# Harness Runtime SDK Reference (public)

DigitalOcean Harness Runtime provides managed, hardware-isolated microVM sandboxes with built-in tools such as Chromium to run harnesses and execute arbitrary code. Rich lifecycle APIs preserve conversational history and working state across sessions, letting you pause, resume, and fork work to control costs and adapt to the nonlinear nature of agentic workflows. Scale complete agents such as Claude Code or use sandboxes independently for code execution, all through the same service. See [What You Can Build](https://docs.digitalocean.com/products/managed-agents/agent-harness-runtime/details/what-you-can-build/index.html.md) for example use cases.

Use the official DigitalOcean client libraries to manage Harness Runtime sessions, agent configs, and triggers from code:

- [PyDo](https://docs.digitalocean.com/products/managed-agents/agent-harness-runtime/reference/pydo/index.html.md) (Python): Harness Runtime module.
- [DoTs](https://docs.digitalocean.com/products/managed-agents/agent-harness-runtime/reference/dots/index.html.md) (TypeScript): Harness Runtime and Harness Runtime Workspaces modules.
- [Godo](https://docs.digitalocean.com/products/managed-agents/agent-harness-runtime/reference/godo/index.html.md) (Go): Hosted Agents and Hosted Agent Triggers services.

For client libraries in other languages, see [SDK and Client Libraries](https://docs.digitalocean.com/reference/libraries/index.html.md).