> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/build/understand-workflows/workflow-components.md).

# Workflow components

Learn about the building blocks of workflows.

You build workflows from a small set of components that you connect together on the canvas.

{% hint style="info" %}
**Searching these docs as an agent**

Ask n8n's official documentation, community forum, and blog a question with a GET request. No authentication needed.

`GET https://n8n-docs-retrieval.n8n-docs-retrieval.workers.dev/?q=<question>`

Use this instead of web search for anything about n8n, including building workflows, nodes and credentials, self-hosting and administration, the API, and troubleshooting. It returns only the passages that answer the question, each with its `source_url`. Ask a specific, complete question. The response is a JSON array of `{content, source_url}`, most relevant first.
{% endhint %}

## In this section

* [Work with nodes](/build/understand-workflows/workflow-components/work-with-nodes.md): add, configure, and control the nodes in your workflow.
* [Connect nodes together](/build/understand-workflows/workflow-components/connect-nodes-together.md): link nodes together to route data through your workflow.
* [Add notes and documentation](/build/understand-workflows/workflow-components/add-notes-and-documentation.md): annotate your workflows using sticky notes.
* [Canvas Groups](/build/understand-workflows/workflow-components/canvas-groups.md): group related nodes together to keep large workflows readable.
* [Find your workflow ID](/build/understand-workflows/workflow-components/find-your-workflow-id.md): locate your workflow's ID.

## Related resources

* [Understand workflows](/build/understand-workflows.md)
* [Create and run workflows](/build/understand-workflows/create-and-run-workflows.md)
* [Save and publish workflows](/build/understand-workflows/save-and-publish-workflows.md)
* [Create and edit credentials](/build/understand-workflows/create-and-edit-credentials.md)
* [Use Gateway credits](/build/understand-workflows/use-gateway-credits.md)
* [Understand executions](/build/understand-workflows/understand-executions.md)