---
type: api
title: Machine learning
description: The machine learning APIs enable you to retrieve information related to the Elastic Stack machine learning features.
url: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v9/group/endpoint-ml
resource: https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v9/group/endpoint-ml
products:
  - Elasticsearch
---

# Machine learning

`ml`

The machine learning APIs enable you to retrieve information related to the Elastic Stack machine learning features.

[Learn more about machine learning.](https://www.elastic.co/docs/explore-analyze/machine-learning)

- [Get machine learning memory usage info
](https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v9/operation/operation-ml-get-memory-stats): `GET` `/_ml/memory/{node_id}/_stats`, `GET` `/_ml/memory/_stats`
- [Get machine learning information](https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v9/operation/operation-ml-info): `GET` `/_ml/info`
- [Set upgrade_mode for ML indices](https://www.elastic.co/elastic/docs-builder/docs/4371/api/doc/elasticsearch/v9/operation/operation-ml-set-upgrade-mode): `POST` `/_ml/set_upgrade_mode`