---
title: "Get one Asset"
method: GET
path: "/assets/{id}"
tags: ["Assets"]
---

# Get one Asset

`GET /assets/{id}`

## Request

- Base URL: `https://api.adcrunch.dev`
- URL: `https://api.adcrunch.dev/assets/{id}`
- Auth: HTTP bearer

Fetches one Asset with its Registrations and a short-lived presigned `previewUrl` for the stored bytes. An Asset belonging to another organization is reported as missing, so the surface cannot be used to discover that an id is real.

This is also how a Registration is polled: `status` and `providerIdentifier` on each Registration settle here, and there is no separate status resource.

## Path parameters

- `id` string, required: The Asset id.

## Response `200`

The Asset, its Registrations, and a signed link to the bytes that expires in 15 minutes.

- object
  - `contentHash` string, required: AdCrunch’s own hash of the stored bytes. A hint for de-duplication, never an identity, and never a provider’s hash. Empty when the store reports none.
  - `createdAt` number, required: Milliseconds since the Unix epoch, UTC.
  - `createdBy` string, required: The user who reserved the upload.
  - `deletedAt` number, nullable, required: Always `null` here. A deleted Asset is not answered.
  - `durationMs` number, nullable, required: How long the video runs, in milliseconds, read from the header of the file at finalize. `null` for an image. For a video, `null` when the file does not state it, or for an Asset uploaded before AdCrunch read it.
  - `filename` string, required: The name the file was uploaded under. Never a lookup key.
  - `height` number, nullable, required: The height in pixels as the file is displayed, with its rotation applied, read from the header of the file at finalize. `null` when the file does not state it, or for an Asset uploaded before AdCrunch read it.
  - `id` string, required: The id of the Asset, `ast_…`.
  - `key` string, required: Where the bytes are held. Read-only, and never sent by you.
  - `kind` 'image' | 'video', required: Follows from `mimeType`, so the stored bytes verify it at finalize. It selects how a provider takes the file.
  - `mimeType` string, required: The `Content-Type` the file was uploaded with, verified against the stored bytes at finalize.
  - `name` string, nullable, required: The name a person gave this Asset, and what a provider receives at a future registration. `null` until somebody renames it, and the filename is the fallback.
  - `organizationId` string, required: The organization that owns the Asset.
  - `sizeBytes` number, required: Read from the stored object at finalize.
  - `status` 'pending' | 'ready', required: `ready` once the bytes have been inspected. A `pending` Asset is a reservation whose bytes have not arrived, and no operation here answers one.
  - `updatedAt` number, nullable, required: When the Asset last changed, in milliseconds since the Unix epoch, UTC: at finalize, or at the last rename.
  - `width` number, nullable, required: The width in pixels as the file is displayed, with its rotation applied, read from the header of the file at finalize. `null` when the file does not state it, or for an Asset uploaded before AdCrunch read it.
  - `registrations` object[], required: Each Registration of this Asset, one for each advertiser, with its state. An empty array means that the Asset has no Registration.
    - `advertiserId` string, required: The advertiser whose provider library gets the Asset.
    - `assetId` string, required: The Asset that the Registration places.
    - `createdAt` number, required: Milliseconds since the Unix epoch, UTC.
    - `deletedAt` number, nullable, required: Always `null` here. When a retry replaces a failed Registration, AdCrunch sets this time on the old one and answers it no more.
    - `failureCode` 'not_found' | 'provider_not_connected' | 'missing_write_access', nullable, required: Why AdCrunch refused the Registration before any provider call. Branch on this field, never on `failureReason`. `not_found`: your organization owns no advertiser of this provider with this id. `provider_not_connected`: the advertiser has no usable connection to the provider. Reconnect the provider, then register again. `missing_write_access`: the connection does not permit this kind of file. Reconnect the provider to grant it. `null` when the Registration did not fail, or when it failed at the provider.
    - `failureReason` string, nullable, required: Why the Registration failed, as a sentence: the words of the provider, or the words of AdCrunch. `null` unless `status` is `failed`.
    - `id` string, required: The id of the Registration, `reg_…`.
    - `organizationId` string, required: The organization that owns the Asset.
    - `provider` 'meta' | 'gads' | 'tiktok' | 'x' | 'openai' | 'snapchat' | 'dv360', required: The provider that owns the advertiser.
    - `providerIdentifier` string, nullable, required: The id that the provider gave the file: a Meta image hash, or the id of the image or the video at the provider. `null` until the provider gives it, and `null` on a `failed` Registration. An image gets its id when the Registration becomes `ready`. A video gets its id earlier, while the Registration is `running`, because the provider gives the id before it has processed the file. Build a creative from a `ready` Registration only.
    - `status` 'running' | 'ready' | 'failed', required: Video can stay `running` for several minutes while the provider processes it. That is normal, and not a failure.
    - `updatedAt` number, nullable, required: When the Registration last changed, in milliseconds since the Unix epoch, UTC. `null` until its first change.
    - `uploadSessionId` string, nullable, required: An in-flight provider upload session, where the protocol has one. `null` for every image.
    - `workflowId` string, required: The durable execution that runs the Registration.
  - `previewUrl` string, required: A signed, expiring link to the stored bytes. Minted for this answer, and valid for 15 minutes. Do not store it.

## Other responses

- `400`: The request does not match the schema of this operation: a field is missing or has the wrong type, or the body is not valid JSON. `error` is `invalid_request`, and `issues` names each field. Nothing was changed.
- `401`: No API key, or one that does not resolve. See the security scheme. `error` is `unauthorized`.
- `402`: The organization has no active subscription. An owner subscribes at `paywallUrl`. `error` is `organization_unentitled`.
- `403`: The caller does not hold `asset:read`. `error` is `forbidden`.
- `404`: No stored Asset with that id in this organization. A reservation answers this too, until finalize promotes it to `ready`. `error` is `not_found`.

---

[API](https://skmtc.dev/adcrunch/apis/adcrunch-api.md) · [All operations](https://skmtc.dev/adcrunch/apis/adcrunch-api/llms.txt) · [OpenAPI document](https://skmtc.dev/adcrunch/apis/adcrunch-api/revisions/a420ba80914f?raw)
