> ## Documentation Index
> Fetch the complete documentation index at: https://docs.extend.ai/llms.txt
> Use this file to discover all available pages before exploring further.
>
> ## API version
> The current API version is `2026-02-09`, served at the site root (no version prefix in URLs).
> If this page URL contains `/2025-04-21/` or `/2024-12-23/`, you are reading an older API version.
> Prefer the current docs at https://docs.extend.ai/llms.txt unless the user explicitly needs that older version.
> Do not treat older-version pages as the source of truth for new integrations.

# Workflow Steps

> Ship your document processing with Extend. Get started with our APIs, SDKs, and guides.

## Docs

- [Parse Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/parse-step.md): Configure file parsing behavior for your workflow.
- [Validation Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/validation-step.md): Configure VALIDATION steps with code and semantic blocks using workflows.create, workflows.update, and workflowVersions.create, or Extend Studio. Read pass/fail results from workflowRuns.retrieve.
- [Router Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/router-step.md): Configure ROUTER steps with ordered code or semantic branches using workflows.create, workflows.update, and workflowVersions.create, or Extend Studio. Read matched branches from workflowRuns.retrieve.
- [Conditional Workflow Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/conditional-steps.md): Guide to configuring and using conditional routing inside a workflow.
- [External Data Validation Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/external-data-validation-step.md): How to leverage the External Data Validation step in a workflow.
- [Conditional Extraction Step](https://docs.extend.ai/2026-02-09/workflows/workflow-steps/conditional-extraction-step.md): How to use the Conditional Extraction step to dynamically route documents to different extractors.