> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Use Clean Audio with Comfy Router

> Call veed/clean-audio through Comfy Router: endpoint, request shape and the response Router returns.

API Reference for `veed/clean-audio`, served by Comfy Router from Veed.

**Input:** Audio · **Output:** Audio

## Quick start

Create a key in [your Comfy workspace](https://platform.comfy.org/profile/api-keys?onboarding=router) and export it as `COMFY_API_KEY`. The Python and TypeScript snippets use the Comfy SDKs (`pip install comfy-sdk` and `npm install @comfyorg/sdk`); the cURL snippet is the same call over raw HTTP.

**Model ID:** `veed/clean-audio`

**Endpoint:** `POST https://api.comfy.org/v2/models/veed/clean-audio`

**Wait for the result**

```python Python theme={null}
from comfy_sdk import Comfy

# Reads COMFY_API_KEY from the environment.
# The SDK automatically creates an idempotency key and reuses it for automatic retries.
with Comfy() as client:
    result = client.models.run(
        "veed/clean-audio",
        {
            "audio_url": "https://static-assets.veed.io/api-examples/clean-audio-input.m4a",
            "normalize_loudness": True,
            "output_format": "flac",
            "strength": 0.874,
            "target_lufs": -19,
        },
    )

print(result)
```

```typescript TypeScript theme={null}
import { comfy } from "@comfyorg/sdk";

// Reads COMFY_API_KEY from the environment.
// The SDK automatically creates an idempotency key and reuses it for automatic retries.
const { data } = await comfy.models.run("veed/clean-audio", {
  audio_url: "https://static-assets.veed.io/api-examples/clean-audio-input.m4a",
  normalize_loudness: true,
  output_format: "flac",
  strength: 0.874,
  target_lufs: -19,
});

console.log(data);
```

```bash cURL theme={null}
curl https://api.comfy.org/v2/models/veed/clean-audio \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d "{\"audio_url\": \"https://static-assets.veed.io/api-examples/clean-audio-input.m4a\", \"normalize_loudness\": true, \"output_format\": \"flac\", \"strength\": 0.874, \"target_lufs\": -19}"
```

**Queue and collect later**

The same body, sent to `POST https://api.comfy.org/v2/models/veed/clean-audio/requests`. Router answers `201` with a `request_id` as soon as the run is admitted, and the result is collected once it is ready, from this process or another one. [Queued delivery](/development/comfy-router/queue) walks through status, cancellation and collection.

```python Python theme={null}
import asyncio
from comfy_sdk import AsyncComfy

# Reads COMFY_API_KEY from the environment.
# Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
async def main():
    async with AsyncComfy() as client:
        handle = await client.models.submit(
            "veed/clean-audio",
            {
                "audio_url": "https://static-assets.veed.io/api-examples/clean-audio-input.m4a",
                "normalize_loudness": True,
                "output_format": "flac",
                "strength": 0.874,
                "target_lufs": -19,
            },
        )
        print("request_id:", handle.request_id)  # with the model ID, all another process needs

        # Poll until the request completes, waiting the Retry-After the server names.
        async for update in handle.iter_events():
            print(update.status, update.queue_position)

        # The provider's own payload, the same value models.run() returns.
        # A request that failed or was cancelled raises the typed Router error here.
        result = await handle.get()

    print(result)

asyncio.run(main())
```

```typescript TypeScript theme={null}
import { comfy } from "@comfyorg/sdk";

// Reads COMFY_API_KEY from the environment.
// Each submit() call mints its own Idempotency-Key and reuses it for automatic retries.
const handle = await comfy.models.submit("veed/clean-audio", {
  audio_url: "https://static-assets.veed.io/api-examples/clean-audio-input.m4a",
  normalize_loudness: true,
  output_format: "flac",
  strength: 0.874,
  target_lufs: -19,
});
console.log("requestId:", handle.requestId); // with the model ID, all another process needs

// Poll until the request completes, waiting the Retry-After the server names.
for await (const update of handle.events()) {
  console.log(update.status, update.queuePosition);
}

// The same result models.run() returns. A request that failed or was cancelled rejects here.
const result = await handle.get();

console.log(result.data);
```

```bash cURL theme={null}
# 1. Submit. Router answers 201 with request_id, status_url, response_url and cancel_url.
curl https://api.comfy.org/v2/models/veed/clean-audio/requests \
  -H "X-API-Key: $COMFY_API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d "{\"audio_url\": \"https://static-assets.veed.io/api-examples/clean-audio-input.m4a\", \"normalize_loudness\": true, \"output_format\": \"flac\", \"strength\": 0.874, \"target_lufs\": -19}"

# 2. Poll until status is COMPLETED, waiting the Retry-After seconds each response names.
REQUEST_ID="<request_id from the 201 body>"
curl -i https://api.comfy.org/v2/models/veed/clean-audio/requests/$REQUEST_ID/status \
  -H "X-API-Key: $COMFY_API_KEY"

# 3. Collect. 200 with the model's native output, 202 with the status body while it is still running.
curl https://api.comfy.org/v2/models/veed/clean-audio/requests/$REQUEST_ID \
  -H "X-API-Key: $COMFY_API_KEY"
```

## Schema

### Input

**audio\_url** `string` *required*

Public http(s) URL of the recording to clean, up to 30 minutes.

**normalize\_loudness** `boolean` (default: true)

Set to false to keep the input loudness.

**output\_format** `string` (default: "flac")

Output container: flac or wav.

**strength** `number` (default: 0.874)

How much background noise is removed under speech.

Range: `0` to `1`

**target\_lufs** `number` (default: -19)

Output loudness in LUFS. Ignored when `normalize_loudness` is false.

Range: `-40` to `-8`

Generated from the schema Router serves at `GET /v2/models/veed/clean-audio/openapi.json`, the same document it validates a call against before the request reaches the provider.

### Output

**data** `object`

**data.credits\_charged** `integer`

Credits VEED charged for the job. Present once the job is COMPLETED.

**data.credits\_estimated** `integer`

Credits VEED quoted before the job ran. Present only on the submit response.

**data.error** `object`

Failure information. Present once the job has FAILED.

**data.error.code** `string`

Machine-readable failure code.

**data.error.details** `object[]`

**data.error.message** `string`

Human-readable failure message.

**data.job\_id** `string`

Job id used to poll for status.

**data.result** `object`

The produced media. Present once the job is COMPLETED. Video routes answer `video`, Clean Audio answers `audio` and Video Background Removal answers `files`.

**data.result.audio** `object`

**data.result.audio.content\_type** `string`

MIME type of the file.

**data.result.audio.file\_name** `string`

Name of the file.

**data.result.audio.file\_size** `integer`

Size of the file in bytes.

Format: `int64`

**data.result.audio.url** `string`

URL the file can be downloaded from.

**data.result.files** `object[]`

Video Background Removal output. One WebM with alpha for `vp9`, or the RGB video and an alpha matte for `h264`.

**data.result.files\[].content\_type** `string`

MIME type of the file.

**data.result.files\[].file\_name** `string`

Name of the file.

**data.result.files\[].file\_size** `integer`

Size of the file in bytes.

Format: `int64`

**data.result.files\[].url** `string`

URL the file can be downloaded from.

**data.result.video** `object`

**data.result.video.content\_type** `string`

MIME type of the file.

**data.result.video.file\_name** `string`

Name of the file.

**data.result.video.file\_size** `integer`

Size of the file in bytes.

Format: `int64`

**data.result.video.url** `string`

URL the file can be downloaded from.

**data.status** `string`

Job status: PROCESSING, COMPLETED, FAILED or CANCELLED.

## Examples

### Input

```json theme={null}
{
  "audio_url": "https://static-assets.veed.io/api-examples/clean-audio-input.m4a",
  "normalize_loudness": true,
  "output_format": "flac",
  "strength": 0.874,
  "target_lufs": -19
}
```

### Output

```json theme={null}
{
  "data": {
    "credits_charged": 1,
    "job_id": "2e3f1c51-a71c-4dc2-9c8d-857c1920a64d",
    "result": {
      "audio": {
        "content_type": "audio/flac",
        "url": "https://example.invalid/veed/clean.flac"
      }
    },
    "status": "COMPLETED"
  }
}
```

## Before you ship

The SDKs create an `Idempotency-Key` and reuse it for automatic retries. For manual retries, reuse the original key. Router can hold the connection for up to 10 minutes.

When a request fails, Router sends an `X-Comfy-Error-Type` response header explaining why. A `422` means Router rejected the input before calling the provider, and a `413` means the request body was larger than Router accepts. Download generated assets promptly because [result URLs can expire](/development/comfy-router/reference#result-assets).

Any size limit named in a field description above is the provider's own bound on that field, quoted from the provider's specification. Router applies a separate cap to the whole request body, which base64-encoded media counts against: see [request body size](/development/comfy-router/limitations#request-bodies-are-capped).

This page documents one partner model called through Comfy Router. The same `comfy-sdk` / `@comfyorg/sdk` package also ships a second client, for running a whole ComfyUI workflow graph on Comfy Cloud: `Comfy(api_key=...)` / `new Comfy({ apiKey })`, with `client.workflows`, `client.assets` and `client.jobs`. See [Comfy SDKs](/development/api-development/sdks).

> **[Headers](/development/comfy-router/headers)**
>
> Authentication, idempotency, request IDs, error buckets, retry pacing, spend limits.

> **[Using the Router API](/development/comfy-router/api)**
>
> Model discovery, validation errors, retries, and billing.

> **[Limitations](/development/comfy-router/limitations)**
>
> What Router does not do today, and what to use instead.


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