---
title: "Bulk update labels"
method: POST
path: "/api/labels/bulk"
tags: ["Labels"]
---

# Bulk update labels

`POST /api/labels/bulk`

If you want to update the labels in saved annotations, use this endpoint.

## Request body

- LabelBulkUpdateRequest
  - `new_label` unknown, required
  - `old_label` unknown, required
  - `project` integer

## Response `200`

- LabelBulkUpdateResponse
  - `annotations_updated` integer, required

---

[API](https://skmtc.net/humansignal/apis/label-studio-api.md) · [All operations](https://skmtc.net/humansignal/apis/label-studio-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/humansignal/label-studio-api/revisions/1d13f90af57a/schema)