> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sequentum.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Core concepts

> These are the core concepts you’ll use to build, run, and automate agents in Sequentum.

## Build and run agents

<CardGroup cols={2}>
  <Card title="Agent Builder" icon="wand-magic-sparkles" href="/agent-builder/overview">
    A conversational AI interface for creating and configuring agents without writing code.
  </Card>

  <Card title="Agents" icon="robot" href="/concepts/agents">
    Programs that visit the web and extract structured data. Create them with Agent Builder or the Editor.
  </Card>

  <Card title="Runs" icon="play" href="/concepts/runs">
    A single execution of an Agent. Runs produce records, files, and logs.
  </Card>

  <Card title="Schedules" icon="calendar" href="/concepts/schedules">
    Recurring triggers that start Runs on a cron-like cadence.
  </Card>
</CardGroup>

## Organize your work

<CardGroup cols={2}>
  <Card title="Spaces" icon="layer-group" href="/concepts/spaces">
    Workspaces that group agents and their associated files.
  </Card>
</CardGroup>

## How they fit together

Use **Agent Builder** to create and configure an **Agent** inside a **Space**. Start the Agent manually or attach a **Schedule** to run it automatically. Each execution creates a **Run**, which produces records, files, and logs.

```
Agent Builder → Agent
Agent + Schedule → Run
```

## Related API references

| Concept       | Reference                                                       |
| ------------- | --------------------------------------------------------------- |
| Agent Builder | [Agent Builder API](/api-reference/agent-builder/start-session) |
| Agent         | [Agents API](/api-reference/agents/list)                        |
| Run           | [Runs](/api-reference/agents/run-status)                        |
| Schedule      | [Schedules API](/api-reference/schedules/list)                  |
| Space         | [Spaces API](/api-reference/spaces/list)                        |