---
title: "Delete Project"
method: DELETE
path: "/v1/projects/{project_id}"
tags: ["projects"]
---

# Delete Project

`DELETE /v1/projects/{project_id}`

## 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/projects/{project_id}`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer
- TypeScript: <https://skmtc.dev/pioneer/apis/brain-api/docs/v1/projects/:project_id/delete.ts> (a function with typed inputs; its response is checked against the schema)

Soft-delete a visible project.

Args:
    project_id: Project identifier.
    auth: Authenticated caller.
    service: Project service.

Returns:
    Deletion confirmation.

## Path parameters

- `project_id` string, uuid, required

## Response `200`

Successful Response

- ProjectDeleteResponse: Response model for deleting a project.
  - `success` boolean, required
  - `message` string, required
  - `project_id` string, required

## 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/projects/:project_id/delete.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)