---
title: "Update a project by ID or name"
method: PUT
path: "/v1/projects/{project_identifier}"
tags: ["projects"]
---

# Update a project by ID or name

`PUT /v1/projects/{project_identifier}`

Update an existing project with new configuration. Project names cannot be changed. The project identifier is either project ID or project name. Note: When using a project name as the identifier, it cannot contain slash (/), question mark (?), or pound sign (#) characters.

## Path parameters

- `project_identifier` string, required — The project identifier: either project ID or project name. If using a project name, it cannot contain slash (/), question mark (?), or pound sign (#) characters.

## Request body

- UpdateProjectRequestBody
  - `description` string, nullable

## Response `200`

The updated project

- UpdateProjectResponseBody
  - `data` Project, required
    - `name` string, required
    - `description` string, nullable
    - `id` string, required

## Other responses

- `403` — Forbidden
- `404` — Not Found
- `422` — Unprocessable Entity

---

[API](https://skmtc.net/arize-ai/apis/arize-phoenix-rest-api.md) · [All operations](https://skmtc.net/arize-ai/apis/arize-phoenix-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/arize-ai/arize-phoenix-rest-api/versions/a14d8ad6f708/schema)