---
title: "Presign the PUT of one part of a multipart upload"
method: GET
path: "/v1/upload/multipart/sign"
tags: ["Upload"]
---

# Presign the PUT of one part of a multipart upload

`GET /v1/upload/multipart/sign`

## Request

- Base URL: `https://api.picsha.ai`
- URL: `https://api.picsha.ai/v1/upload/multipart/sign`
- Auth: HTTP bearer

## Query parameters

- `key` string, required
- `uploadId` string, required
- `partNumber` integer, required

## Response `200`

Default Response

- object
  - `url` string, required
  - `expires` number, required

## Other responses

- `500`: Default Response

---

[API](https://skmtc.dev/picsha/apis/picsha-ai-api.md) · [All operations](https://skmtc.dev/picsha/apis/picsha-ai-api/llms.txt) · [OpenAPI document](https://skmtc.dev/picsha/apis/picsha-ai-api/revisions/f77c6ac40e70?raw)