---
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

- `412` — Precondition failed. An error code and message are returned. 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 data id and evaluation engine id

---

[API](https://skmtc.net/openml/apis/openml-api.md) · [All operations](https://skmtc.net/openml/apis/openml-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/openml/openml-api/revisions/263d3d6ee586/schema)