---
title: "Update Experiment Group"
method: PATCH
path: "/api/v1/experiment-groups/{group_id}"
tags: ["experiments"]
---

# Update Experiment Group

`PATCH /api/v1/experiment-groups/{group_id}`

## Path parameters

- `group_id` string, required

## Request body

- UpdateExperimentGroupRequest
  - `name` string, nullable
  - `add_xids` string[]
  - `remove_xids` string[]

## Response `200`

Successful Response

- ExperimentGroupResponse
  - `group` ExperimentGroup, required
    - `id` string, required
    - `name` string, required
    - `created_by` string, required
    - `created_at` string, date-time, required
    - `xids` string[], required

## Changes

- **2026-09-24** `4087cc7a74aa` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/trajectory/apis/trajectory-api/changes/api/v1/experiment-groups/:group_id/patch.md)

---

[API](https://skmtc.dev/trajectory/apis/trajectory-api.md) · [All operations](https://skmtc.dev/trajectory/apis/trajectory-api/llms.txt) · [OpenAPI document](https://skmtc.dev/trajectory/apis/trajectory-api/revisions/8331f8435ce8?raw)