---
title: "GET /experimental/launch-runs/{id}/attachments/{attachmentId}"
method: GET
path: "/experimental/launch-runs/{id}/attachments/{attachmentId}"
tags: ["Launch Runs"]
---

# GET /experimental/launch-runs/{id}/attachments/{attachmentId}

`GET /experimental/launch-runs/{id}/attachments/{attachmentId}`

## Request

- Base URL: `https://api.tessl.io`
- URL: `https://api.tessl.io/experimental/launch-runs/{id}/attachments/{attachmentId}`
- Auth: none declared

Returns a launch run attachment with a short-lived `downloadUrl` that saves the file under its stored filename. For the run’s own key and members of the run’s workspace.

## Path parameters

- `id` string, uuid, required
- `attachmentId` string, uuid, required

## Headers

- `Authorization` string

## Response `200`

Default Response

- object
  - `links` object, required
    - `self` string, uri, required
  - `data` object, required
    - `id` string, uuid, required
    - `type` 'launch-run-attachment', required
    - `attributes` object, required
      - `launchRunId` string, uuid, required
      - `filename` string, required
      - `contentType` string, required
      - `sizeBytes` integer, required
      - `url` string, uri, required: Permanent no-login link that redirects to a short-lived download. Safe to embed in a pull request until `expiresAt`.
      - `createdAt` string, date-time, required
      - `expiresAt` string, date-time, required
      - `downloadUrl` string, uri, required
      - `downloadUrlExpiresAt` string, date-time, required

## Other responses

- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `500`: Internal Server Error

## Changes

- **2026-10-16** `203bb2574bb2`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/tessl/apis/tessl-api/changes/experimental/launch-runs/:id/attachments/:attachmentId/get.md)

---

[API](https://skmtc.dev/tessl/apis/tessl-api.md) · [All operations](https://skmtc.dev/tessl/apis/tessl-api/llms.txt) · [OpenAPI document](https://skmtc.dev/tessl/apis/tessl-api/revisions/7386f1e6295b?raw)