---
title: "Update Dataset Rows"
method: PATCH
path: "/v1/datasets/{name}/{version}/rows"
tags: ["datasets"]
---

# Update Dataset Rows

`PATCH /v1/datasets/{name}/{version}/rows`

## Request

- Base URL: `https://api.pioneer.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.pioneer.ai/v1/datasets/{name}/{version}/rows`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer
- TypeScript: <https://skmtc.dev/pioneer/apis/brain-api/docs/v1/datasets/:name/:version/rows/patch.ts> (a function with typed inputs; its response is checked against the schema)

Updates selected rows and creates a dataset version.

## Path parameters

- `name` string, required
- `version` string, required

## Request body

- DatasetRowsUpdateRequest: Request to update specific rows in a dataset.
  - `updates` RowUpdate[], required: List of row updates to apply
    - `row_index` integer, required: Zero-based index of the row to update
    - `changes` object, required: Column name to new value mapping

## Response `200`

Successful Response

- DatasetRowsUpdateResponse: Response after updating dataset rows.
  - `success` boolean
  - `dataset_name` string, required
  - `version` string, required
  - `rows_updated` integer, required
  - `new_version` string, nullable: New version number if a new version was created
  - `validation_warnings` string[], nullable

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-24** `0e5e86e2bae5`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/pioneer/apis/brain-api/changes/v1/datasets/:name/:version/rows/patch.md)

---

[API](https://skmtc.dev/pioneer/apis/brain-api.md) - [All operations](https://skmtc.dev/pioneer/apis/brain-api/llms.txt) - [OpenAPI document](https://skmtc.dev/pioneer/apis/brain-api/revisions/0e5e86e2bae5?raw)