> ## 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.

# Classify

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


## API Docs

- Classify [Classify Run Processed](https://docs.extend.ai/api-reference/webhook-events/classify/classify-run-processed-webhook.md)
- Classify [Classify Run Failed](https://docs.extend.ai/api-reference/webhook-events/classify/classify-run-failed-webhook.md)
- Classify [Classifier Created](https://docs.extend.ai/api-reference/webhook-events/classify/classifier-created-webhook.md)
- Classify [Classifier Updated](https://docs.extend.ai/api-reference/webhook-events/classify/classifier-updated-webhook.md)
- Classify [Classifier Deleted](https://docs.extend.ai/api-reference/webhook-events/classify/classifier-deleted-webhook.md)
- Classify [Classifier Draft Updated](https://docs.extend.ai/api-reference/webhook-events/classify/classifier-draft-updated-webhook.md)
- Classify [Classifier Version Published](https://docs.extend.ai/api-reference/webhook-events/classify/classifier-version-published-webhook.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.extend.ai/2026-02-09/api-reference/webhook-events/classify/openapi.json)
- [OpenAPI YAML](https://docs.extend.ai/2026-02-09/api-reference/webhook-events/classify/openapi.yaml)