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

# Delete a project by ID or name

`DELETE /v1/projects/{project_identifier}`

Delete an existing project and all its associated data. The project identifier is either project ID or project name. The default project cannot be deleted. 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.

## Response `204`

No content returned on successful deletion

## 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/5339b2afd3a2/schema)