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

# Legacy ADE Features

> Review deprecated ADE features: the legacy endpoint, the agentic-doc library, and the DPT-1 and DPT-2 mini models.

The `v1/tools/agentic-document-analysis` endpoint, the `agentic-doc` Python library, and the DPT-1 and `dpt-2-mini` parsing models are deprecated. Requests that use the legacy endpoint or a deprecated model return an error.

## Legacy ADE Endpoint

The legacy Agentic Document Extraction endpoint (`v1/tools/agentic-document-analysis`) was the original endpoint for document processing. It combined document parsing and field extraction into a single API call.

This endpoint has been replaced with separate, function-specific APIs:

* **[ADE Parse API](./parse)**: Converts documents into structured Markdown with hierarchical JSON
* **[ADE Split API](./ade-split)**: Classifies and separates documents into sub-documents
* **[ADE Extract API](./ade-extract)**: Extracts specific data fields from parsed documents

## Legacy agentic-doc Library

The [agentic-doc](https://github.com/landing-ai/ade-cli/tree/legacy) Python library is deprecated.

Use the [ade-python](./ade-python) library for all new projects.

## Deprecated DPT-1 Parsing Model

DPT-1 was the original Document Pre-Trained Transformer (DPT) model for Agentic Document Extraction. It powered basic document parsing and was the only model available when Agentic Document Extraction launched.

DPT-1 has been replaced by DPT-2, which builds on DPT-1 and adds support for complex tables, additional chunk types (such as logos, barcodes, and signatures), and improved layout detection.

DPT-1 is deprecated.

To migrate, update the `model` parameter in your API calls or library code from `dpt-1` to `dpt-2`. For more information, go to [Document Pre-Trained Transformers (Parsing Models)](./ade-parse-models).

## Deprecated DPT-2 Mini Parsing Model

The `dpt-2-mini` model was a lightweight variant of DPT-2. It is deprecated.

To migrate, update the `model` parameter in your API calls or library code from `dpt-2-mini` to `dpt-2`.