---
title: "Upload dataset feature description"
method: POST
path: "/data/features"
tags: ["data"]
---

# Upload dataset feature description

`POST /data/features`

Uploads dataset feature description. Upon success, it returns the data id.

## Query parameters

- `api_key` string, required

## Other responses

- `431` — Dataset already processed
- `432` — Please provide description xml
- `433` — Problem validating uploaded description file
- `434` — Could not find dataset
- `436` — Something wrong with XML, check did and evaluation engine id

## Changes

- **2018-09-18** `4df86fe63217` — 1 info
  - endpoint added
- **2018-01-17** `2209d99ea36e` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/openml/apis/openml-api/changes/data/features/post.md)

---

[API](https://skmtc.dev/openml/apis/openml-api.md) · [All operations](https://skmtc.dev/openml/apis/openml-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/openml/openml-api/revisions/4df86fe63217/schema)