> ## Documentation Index
> Fetch the complete documentation index at: https://b5bfb29-opencomputer.manicule.dev/llms.txt
> Use this file to discover all available pages before exploring further.
> For every page in one file, fetch https://b5bfb29-opencomputer.manicule.dev/llms-full.txt (large).
> To search and read these docs as tools, connect the MCP server at https://b5bfb29-opencomputer.manicule.dev/api/mcp.
> Every agent surface: https://b5bfb29-opencomputer.manicule.dev/.well-known/llms-manifest.json

# Quickstart (/getting-started/quickstart)

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Related: [What is OpenComputer](/getting-started/introduction.md), [Architecture](/getting-started/architecture.md)

> On the hosted service, sign in, connect a coding agent, Slack and GitHub, then mention `@computer` in a channel

The hosted service runs the gateway and the computer. To run the code yourself, see [Self-hosting](/self-hosting/overview).

<Frame>
  <img src="/_assets/7253e1faa3a628d6e819afc8e727b220ade60b24cefd252fe5f7d66e1a1cedb2" alt="Sam mentions @computer with a question in #eng. computer replies in the thread with the thread id, the steps it ran, the answer and a footer with model, duration and context size" width="1552" height="1150" />
</Frame>

## Before you start

* A Slack workspace. If you are not an admin, Slack lets you request approval for the app.
* A GitHub account that can install a GitHub App on the repositories the agent will work in.
* A Claude Pro or Max, or ChatGPT Plus or Pro subscription, unless you pay for model usage with OpenComputer credits.

## Set up

Sign in at [app.opencomputer.dev/computer](https://app.opencomputer.dev/computer). The page walks through four steps.

<Steps>
<Step title="Choose your coding agent">Pick Claude Code or Codex and connect the subscription it runs on, or pick OpenComputer credits.</Step>

<Step title="Add OpenComputer to Slack">Click **Add to Slack** and approve the app. The service creates your organization's computer; the page shows its status until it is `Online`.</Step>

<Step title="Connect GitHub">Install the GitHub App and pick the repositories. The three most recently pushed are cloned on the computer; the others are cloned when a session first checks them out. The agent can push branches and open pull requests in all of them.</Step>

  <Step title="Give it a first task">
    Mention `@computer` in a channel, or send it a direct message. The page shows the mention to copy.

    ```text
    @computer why is the checkout test flaky?
    ```

    You do not have to wait for `Online`: a message sent while the computer starts is picked up once it is on.
  </Step>
</Steps>

The reply streams into the thread under your message. That thread is now a session: reply in it to continue, without a mention.

## Teammates

Anyone in the Slack workspace can mention `@computer`. A session belongs to the person who started its thread.

## Next

* [Threads](/slack/threads): what a session shows and how it ends.
* [Branches and pull requests](/slack/branches-and-pull-requests): how work leaves the computer.
* [Self-hosting](/self-hosting/overview): run the gateway and the computer yourself.