---
title: "Delete Assembly File"
method: DELETE
path: "/api/v1/projects/{project_id}/assembly-file"
tags: ["assembly-files"]
---

# Delete Assembly File

`DELETE /api/v1/projects/{project_id}/assembly-file`

Hard-delete the project's assembly file (R2 object + DB row).

Idempotent — returns 204 even if no assembly file exists.
Returns 409 if the project is past IN_PRODUCTION.

## Path parameters

- `project_id` string, uuid, required

## Response `204`

Successful Response

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/prototyping/apis/prototyping-io-api.md) · [All operations](https://skmtc.dev/prototyping/apis/prototyping-io-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/prototyping/prototyping-io-api/revisions/f4a0079fbb57/schema)