---
title: "Run ElevenLabs Sound Effects (elevenlabs-sound-effects)"
method: POST
path: "/models/elevenlabs-sound-effects"
tags: ["Run a model"]
---

# Run ElevenLabs Sound Effects (elevenlabs-sound-effects)

`POST /models/elevenlabs-sound-effects`

## Request

- Base URL: `https://api.hedra.com/v3`
- URL: `https://api.hedra.com/v3/models/elevenlabs-sound-effects`
- Auth: one of:
  - API key in header `Authorization`
  - HTTP bearer

One-off sound effects from a written description, loopable on request.

Submits an asynchronous job and returns `202` with a job id. Fetch the result at `GET /v3/jobs/{job_id}` — each item in its `outputs[]` follows the `OutputItem` schema — or track progress via `GET /v3/jobs/{job_id}/status` / the SSE stream at `GET /v3/jobs/{job_id}/stream`.

## Headers

- `Idempotency-Key` string

## Request body

- SubmitBodyElevenlabsSoundEffects
  - `input` InputElevenlabsSoundEffects, required: Model-specific inputs for `elevenlabs-sound-effects`.
    - `text` string, required: Generation prompt.
    - `duration_ms` integer, required: Length of the generated sound, in milliseconds. Billed as whole seconds, rounded up. From 500 to 30000.
    - `prompt_influence` number: How literally the model reads the description; higher values track it more closely and lower values leave the model more latitude. From 0 to 1.
    - `loop` boolean: Generate a sound that loops seamlessly end to end.
  - `webhook` string, uri, nullable: URL to receive a signed completion webhook.

## Response `202`

Accepted. The job runs asynchronously; poll `status_url` / `result_url` from the ack.

- SubmitResponse
  - `job_id` string, required: This job's id — server-issued, and opaque.
  - `model` string, required: The resolved model id this job runs on.
  - `status` 'IN_QUEUE' | 'IN_PROGRESS' | 'COMPLETED' | 'FAILED', required: The four states a job can be in.
  - `status_url` string, required: Path of this job's status monitor: poll GET /v3/jobs/{job_id}/status for status, progress, and the estimated completion time.
  - `result_url` string, required: Path of the job resource itself: GET /v3/jobs/{job_id} returns the result envelope, including the outputs once it completes. Also the value of this response's `Location` header.
  - `estimated_completion_at` string, date-time, nullable: ISO-8601 instant this job is estimated to finish, as of this response. Null when no estimate is available yet, and when the job has already finished. The estimate can change while the job runs: poll `GET /v3/jobs/{job_id}/status` for the current one.

## Other responses

- `400`: Invalid or failed-validation request.
- `401`: Authentication failed: missing, malformed, or invalid credentials.
- `402`: The API wallet cannot cover this request. `error.billing` carries the balance, the price, and where to add funds.
- `403`: Insufficient scope or plan.
- `404`: Resource not found.
- `422`: Moderation refused the request's content.
- `429`: Rate limit exceeded.
- `500`: Internal error.

## Changes

- **2026-10-16** `06692d16e78a`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/hedra-labs/apis/hedra-api/changes/models/elevenlabs-sound-effects/post.md)

---

[API](https://skmtc.dev/hedra-labs/apis/hedra-api.md) - [All operations](https://skmtc.dev/hedra-labs/apis/hedra-api/llms.txt) - [OpenAPI document](https://skmtc.dev/hedra-labs/apis/hedra-api/revisions/6ef35a11cefe?raw)