---
title: "Download Blob"
method: GET
path: "/blobs/{uuid_str}/download"
tags: ["runtime_mutations", "blobs"]
---

# Download Blob

`GET /blobs/{uuid_str}/download`

## Request

- Base URL: `https://api.quadrillion.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.quadrillion.io/blobs/{uuid_str}/download`
- Auth: none declared

Download a blob by UUID with proper filename.

Requires an authenticated session; in cloud mode the lookup is scoped to
the caller's user_id.

## Path parameters

- `uuid_str` string, required

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-18** `abf76937a751`: 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status

[Operation history](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/changes/blobs/:uuid_str/download/get.md)

---

[API](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api.md) - [All operations](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/llms.txt) - [OpenAPI document](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/revisions/2e1425e0e054?raw)