Download a retained final resource

GET/api/v1/storage/assets/{id}/downloadCopy URL

Authentication · x-api-key

Archive completion is required. URL signatures expire independently of storage. Other users' resources return 404.

Scope: task:read

Billing and effects: Free resource read; no generation purchase.

Recovery: Read the current resource before retrying a mutation; do not assume this operation supports Idempotency-Key.

Follow this operation’s workflow → · All permission rules

All endpointsRequestResponsesCode

Request

Path parameters

idpath · Required

string

Resource identifier returned by the corresponding create operation.

Maximum characters: 64.

Responses

Read the HTTP status and body together. A receipt confirms acceptance; poll the returned Task or product view for terminal execution and media delivery. Example IDs and credit amounts are illustrative, not a price quote.

HTTP 401 · Request rejected; correct the key before retrying

Complete JSON example (optional fields may be omitted).

{
  "success": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key"
  }
}

200 OK

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

All constraint groups below apply to the same value.

• Response 200 · Constraint group 1 — requires id, providerCode, resourceId, format, byteLength, status, deliveredAt, freeUntil, retainedUntilAll groups

  object
  9 fields

  • Response 200 · byteLengthRequired

    string

    Size of the media object in bytes, not kilobytes or billing credits.

  • Response 200 · deliveredAtRequired

    string

    Start of this billing or usage period as an ISO 8601 timestamp.

    Format: date-time.

  • Response 200 · formatRequired

    string

    Stored media format for this retained object; use content/URL metadata rather than deriving a file extension from its resource ID.

  • Response 200 · freeUntilRequired

    string

    Start of this billing or usage period as an ISO 8601 timestamp.

    Format: date-time.

  • Response 200 · idRequired

    string

    Identifier of this resource. Keep identifiers for Tasks, product resources and child assets separately; use the ID required by the destination endpoint.

  • Response 200 · providerCodeRequired

    string

    Provider/product code of this retained asset, such as suno or mv.

  • Response 200 · resourceIdRequired

    string

    Identifier of the product resource, separate from the Task executing an operation on it.

  • Response 200 · retainedUntilRequired

    string | null

    Start of this billing or usage period as an ISO 8601 timestamp.

    Use a complete option below; the value must satisfy at least one option.

    2 options

    • Response 200 · Option 1 — stringOption

      string

      Start of this billing or usage period as an ISO 8601 timestamp.

      Format: date-time.

    • Response 200 · Option 2 — nullOption

      null

  • Response 200 · statusRequired

    string

    State of the object containing this field. Use its listed values; operation acceptance, Task completion and media delivery are separate states.

• Response 200 · Constraint group 2 — requires url, urlExpiresAtAll groups

  object
  2 fields

  • Response 200 · urlRequired

    string

    Access URL for the containing resource. Use it as returned; do not construct URLs from identifiers. Availability and expiry follow the surrounding resource state.

  • Response 200 · urlExpiresAtRequired

    string

    ISO 8601 timestamp when this access URL expires. Refresh the owning resource for a new URL; URL lifetime is separate from retention.

    Format: date-time.

401 Unauthorized

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 401 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 401 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 401 · error.messageRequired

    string

    Human readable error message

  • Response 401 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 401 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 401 · successRequired

  false

  Always false for error responses

403 Forbidden

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 403 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 403 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 403 · error.messageRequired

    string

    Human readable error message

  • Response 403 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 403 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 403 · successRequired

  false

  Always false for error responses

404 Not Found

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 404 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 404 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 404 · error.messageRequired

    string

    Human readable error message

  • Response 404 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 404 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 404 · successRequired

  false

  Always false for error responses

410 Gone

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 410 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 410 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 410 · error.messageRequired

    string

    Human readable error message

  • Response 410 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 410 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 410 · successRequired

  false

  Always false for error responses

429 Too Many Requests

Request allowance or task admission capacity exceeded. Follow Retry-After when present; otherwise wait for active tasks and use bounded backoff. Limits do not guarantee throughput. For SSE, this is the HTTP connection response, not an event.

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 429 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 429 · error.codeRequired

    string

    RATE_LIMITED for request and task admission rejections.

  • Response 429 · error.messageRequired

    string

    Human-readable explanation. Wording may change; use the machine-readable code for programmatic decisions.

  • Response 429 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    9 fields

    • Response 429 · error.details.currentOptional

      integer

      Current count for the rate-limit window identified by policy and scope.

      Minimum: 0.

    • Response 429 · error.details.inFlightOptional

      integer

      Current accepted tasks counted against the relevant account or API-key admission limit.

      Minimum: 0.

    • Response 429 · error.details.limitOptional

      integer

      Maximum count allowed by this response context. A limit is not a throughput guarantee.

      Minimum: 0.

    • Response 429 · error.details.policyOptional

      "operation" | "query"

      Allowance bucket: query for resource reads, operation for task-producing or operation requests. See the rate-limit response headers.

    • Response 429 · error.details.retryAfterSecOptional

      integer

      Suggested delay in seconds before another request. Honor the Retry-After header when present; use bounded backoff.

      Minimum: 1.

    • Response 429 · error.details.scopeOptional

      "user" | "api-key" | "ip" | "apiKey"

      Entity whose allowance was exceeded, such as the user, API key or IP address.

    • Response 429 · error.details.tierOptional

      "FREE" | "PREMIUM" | "ENTERPRISE"

      Account allowance tier used for this admission or rate-limit decision.

    • Response 429 · error.details.typeOptional

      "rps" | "daily" | "monthly"

      Admission limit that rejected the request: rps (continuously refilled requests-per-second bucket), daily or monthly UTC request budget. Interpret with policy, scope and retryAfterSec.

    • Response 429 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 429 · successRequired

  false

  Whether this response reports a successful action; false accompanies the structured error object.

  Default: false.

500 Internal Server Error

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 500 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 500 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 500 · error.messageRequired

    string

    Human readable error message

  • Response 500 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 500 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 500 · successRequired

  false

  Always false for error responses

503 Service Unavailable

application/json

Required, optional and null

Required fields apply within their object and selected option. An optional object may be absent; when present, its required fields must be included. Required and nullable are independent: null is allowed only where listed.

• Response 503 · errorRequired

  object

  Structured failure information. Branch on code, show message, and interpret details only for that code. The request ID is returned in the X-Request-Id header.

  3 fields

  • Response 503 · error.codeRequired

    string

    Application-specific error code (see error catalog)

  • Response 503 · error.messageRequired

    string

    Human readable error message

  • Response 503 · error.detailsOptional

    object

    Optional error-specific context. Read code first; details keys depend on that code. Unknown keys must not break error handling. See /resources/errors/.

    1 field

    • Response 503 · error.details[key]Each value

      any JSON value

      Key pattern: ^(.*)$.

• Response 503 · successRequired

  false

  Always false for error responses

Request example

Wrap lines

cURL

curl --globoff --request GET \
  --url 'https://api.omnapi.com/api/v1/storage/assets/{id}/download' \
  --header "x-api-key: $OMNAPI_KEY"

Node.js

const response = await fetch("https://api.omnapi.com/api/v1/storage/assets/{id}/download", {
  method: "GET",
  headers: {
    "x-api-key": process.env.OMNAPI_KEY,
  },
});
if (!response.ok) throw new Error(await response.text());
console.log(await response.text());

Python

import os
import requests

response = requests.request(
    "GET", "https://api.omnapi.com/api/v1/storage/assets/{id}/download",
    headers={
        "x-api-key": os.environ["OMNAPI_KEY"],
    },
    timeout=60,
)
response.raise_for_status()
print(response.text)

Replace URL placeholders such as {taskId} with IDs from actual responses, and set the header environment variables shown above.

Workflow and next steps → · Recover an uncertain request

Interactive API Explorer → · OpenAPI JSON