Pixazo API→Models→Mirelo SFX
Pixazo API→Models→Mirelo SFX

Mirelo SFX API - AI Sound Effects Generation

by Mirelo AI

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Mirelo SFX API, developers can produce immersive soundscapes from text prompts or directly from video content, ideal for film, game audio, content production, and accessibility.

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Mirelo SFX API

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Mirelo SFX 1.6 Text to Speech API Documentation

https://gateway.pixazo.ai/mirelo-sfx-1-6-text-to-audio/v1

Authentication

All requests require an API key passed via header.

HeaderTypeRequiredDescription
Ocp-Apim-Subscription-KeystringYesYour API subscription key

Mirelo SFX 1.6 Text to Audio generate request

Request Code

POST https://gateway.pixazo.ai/mirelo-sfx-1-6-text-to-audio/v1/mirelo-sfx-1-6-text-to-audio-request
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_API_KEY

{
  "text_prompt": "Rainforest ambience with distant birds and rustling leaves",
  "duration": 10,
  "ambience": false,
  "double_output": false,
  "num_samples": 1,
  "upload_audio_format": "wav"
}
import requests

url = "https://gateway.pixazo.ai/mirelo-sfx-1-6-text-to-audio/v1/mirelo-sfx-1-6-text-to-audio-request"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
}
data = {
    "text_prompt": "Rainforest ambience with distant birds and rustling leaves",
    "duration": 10,
    "ambience": false,
    "double_output": false,
    "num_samples": 1,
    "upload_audio_format": "wav"
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
const url = "https://gateway.pixazo.ai/mirelo-sfx-1-6-text-to-audio/v1/mirelo-sfx-1-6-text-to-audio-request";
const headers = {
  "Content-Type": "application/json",
  "Cache-Control": "no-cache",
  "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
};
const data = {
  "text_prompt": "Rainforest ambience with distant birds and rustling leaves",
  "duration": 10,
  "ambience": false,
  "double_output": false,
  "num_samples": 1,
  "upload_audio_format": "wav"
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data));
curl -X POST "https://gateway.pixazo.ai/mirelo-sfx-1-6-text-to-audio/v1/mirelo-sfx-1-6-text-to-audio-request" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  --data-raw '{
    "text_prompt": "Rainforest ambience with distant birds and rustling leaves",
    "duration": 10,
    "ambience": false,
    "double_output": false,
    "num_samples": 1,
    "upload_audio_format": "wav"
  }'

Output

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

HeaderRequiredDefaultDescription
X-Webhook-URLYes (to enable)—HTTPS endpoint on your server that will receive the POST callback. Must respond 2xx within a few seconds (process async if needed).
X-Webhook-ModeNoterminalterminal — fires once at the final status (COMPLETED/FAILED/ERROR). sync — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-1-6-text-to-audio",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.wav"
    ],
    "media_type": "audio/wav"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-1-6-text-to-audio",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

  • terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
  • sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
  • Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
  • Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
  • HTTPS required — plain http:// URLs are rejected.

Request Parameters - Mirelo SFX 1.6 Text to Audio generate request

Parameter Required Type Default Allowed values / range Description
text_promptYesstring—non-empty; ≥ 4 charsText prompt describing the desired audio (minimum 4 characters).
durationNofloat100.1–60 (seconds)Duration of the generated audio in seconds. Must be between 0.1 and 60.
ambienceNobooleanfalse—When true, generates a seamlessly loopable ambient tile instead of a generic sound effect.
double_outputNobooleanfalse—When true and ambience=true, concatenates the loop with itself to produce a 2x longer output.
num_samplesNointeger11–4Number of audio variations to generate. Must be between 1 and 4.
upload_audio_formatNostring"wav""wav", "mp3", "aac", "flac"Output audio format. Allowed values: wav, mp3, aac, flac.
seedNointeger——Seed for reproducible results. Use -1 or omit to generate random output.

Example Request

{
  "text_prompt": "Rainforest ambience with distant birds and rustling leaves",
  "duration": 10,
  "ambience": false,
  "double_output": false,
  "num_samples": 1,
  "upload_audio_format": "wav"
}

Response

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header Value
Content-Typeapplication/json
Cache-Controlno-cache
Ocp-Apim-Subscription-KeyYOUR_API_KEY

Response Handling

Common status codes.

CodeMeaning
202Accepted — Request queued
Bad Request
401Unauthorized
402Insufficient Balance
403Forbidden
Too Many Requests
500Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}
// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'mirelo-sfx-1-6-text-to-audio' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-1-6-text-to-audio",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "mirelo-sfx-1-6-text-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-1-6-text-to-audio",
  "error": null,
  "output": {
    "media_url": ["https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-1-6-text-to-audio_019dxxxx/output.wav"],
    "media_type": "audio/wav"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

FieldTypeDescription
request_idstringUnique request identifier
statusstringQUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_idstringModel that processed the request
errorstring|nullError message if failed
output.media_urlarrayURLs to generated media (R2 CDN)
output.media_typestringMIME type of the output
created_atstringWhen request was created
completed_atstringWhen request completed
polling_urlstringStatus URL (initial response only)

Status Values

StatusDescription
QUEUEDRequest accepted, waiting to be processed
PROCESSINGBeing processed by the model
COMPLETEDDone — output contains the result
FAILEDFailed — check error field
ERRORSystem error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

  1. Send a generate request to the API endpoint
  2. Save the request_id from the response
  3. Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
  4. When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

Mirelo SFX 1.6 Text to Speech API Pricing

No data available

Could not load current pricing

Mirelo SFX 1.6 Video to Video API Documentation

https://gateway.pixazo.ai/mirelo-sfx-1-6-video-to-video/v1

Authentication

All requests require an API key passed via header.

HeaderTypeRequiredDescription
Ocp-Apim-Subscription-KeystringYesYour API subscription key

Mirelo SFX 1.6 Video to Video generate request

Request Code

POST https://gateway.pixazo.ai/mirelo-sfx-1-6-video-to-video/v1/mirelo-sfx-1-6-video-to-video-request
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_API_KEY

{
  "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  "text_prompt": "",
  "duration": 10,
  "num_samples": 1
}
import requests

url = "https://gateway.pixazo.ai/mirelo-sfx-1-6-video-to-video/v1/mirelo-sfx-1-6-video-to-video-request"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
}
data = {
    "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
    "text_prompt": "",
    "duration": 10,
    "num_samples": 1
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
const url = "https://gateway.pixazo.ai/mirelo-sfx-1-6-video-to-video/v1/mirelo-sfx-1-6-video-to-video-request";
const headers = {
  "Content-Type": "application/json",
  "Cache-Control": "no-cache",
  "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
};
const data = {
  video_url: "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  text_prompt: "",
  duration: 10,
  num_samples: 1
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data));
curl -X POST "https://gateway.pixazo.ai/mirelo-sfx-1-6-video-to-video/v1/mirelo-sfx-1-6-video-to-video-request" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  --data-raw '{
    "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
    "text_prompt": "",
    "duration": 10,
    "num_samples": 1
  }'

Output

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

HeaderRequiredDefaultDescription
X-Webhook-URLYes (to enable)—HTTPS endpoint on your server that will receive the POST callback. Must respond 2xx within a few seconds (process async if needed).
X-Webhook-ModeNoterminalterminal — fires once at the final status (COMPLETED/FAILED/ERROR). sync — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-1-6-video-to-video",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.mp4"
    ],
    "media_type": "video/mp4"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-1-6-video-to-video",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

  • terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
  • sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
  • Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
  • Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
  • HTTPS required — plain http:// URLs are rejected.

Request Parameters - Mirelo SFX 1.6 Video to Video generate request

Parameter Required Type Default Allowed values / range Description
video_urlYesstring——URL of the source video. Supported formats: MP4, MOV, WEBM, M4V, GIF.
text_promptNostring——Optional text guiding the generated audio. Use to specify mood, instrument type, or sound context (e.g., “epic drum roll,” “rain on roof”).
durationNofloat101–60Duration in seconds (1–60). Values above 10 use sliding-window extended generation for longer videos.
num_samplesNointeger11–4Number of audio variations to generate (1–4). Each sample produces a separate output video with a different audio track.
seedNointeger——Seed for reproducibility. Use -1 or omit to generate random audio variations.

Example Request

{
  "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  "text_prompt": "",
  "duration": 10,
  "num_samples": 1
}

Response

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header Value
Content-Typeapplication/json
Cache-Controlno-cache
Ocp-Apim-Subscription-KeyYOUR_API_KEY

Response Handling

Common status codes.

CodeMeaning
202Accepted — Request queued
Bad Request
401Unauthorized
402Insufficient Balance
403Forbidden
Too Many Requests
500Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}
// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'mirelo-sfx-1-6-video-to-video' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-1-6-video-to-video",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "mirelo-sfx-1-6-video-to-video_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-1-6-video-to-video",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-1-6-video-to-video_019dxxxx/output.mp4"
    ],
    "media_type": "video/mp4"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

FieldTypeDescription
request_idstringUnique request identifier
statusstringQUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_idstringModel that processed the request
errorstring|nullError message if failed
output.media_urlarrayURLs to generated media (R2 CDN)
output.media_typestringMIME type of the output
created_atstringWhen request was created
completed_atstringWhen request completed
polling_urlstringStatus URL (initial response only)

Status Values

StatusDescription
QUEUEDRequest accepted, waiting to be processed
PROCESSINGBeing processed by the model
COMPLETEDDone — output contains the result
FAILEDFailed — check error field
ERRORSystem error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

  1. Send a generate request to the API endpoint
  2. Save the request_id from the response
  3. Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
  4. When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

Mirelo SFX 1.6 Video to Video API Pricing

No data available

Could not load current pricing

2. Mirelo SFX 1.0

Mirelo SFX 1.0 Video to Audio API Documentation

https://gateway.pixazo.ai/mirelo-sfx-video-to-audio/v1

Authentication

All requests require an API key passed via header.

HeaderTypeRequiredDescription
Ocp-Apim-Subscription-KeystringYesYour API subscription key

Mirelo SFX Video to Audio generate request

Request Code

POST https://gateway.pixazo.ai/mirelo-sfx-video-to-audio/v1/mirelo-sfx-video-to-audio-request
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_API_KEY

{
  "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  "text_prompt": "",
  "num_samples": 2,
  "seed": 2105,
  "duration": 10
}
import requests

url = "https://gateway.pixazo.ai/mirelo-sfx-video-to-audio/v1/mirelo-sfx-video-to-audio-request"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
}
data = {
    "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
    "text_prompt": "",
    "num_samples": 2,
    "seed": 2105,
    "duration": 10
}

response = requests.post(url, json=data, headers=headers)
print(response.json())
const url = "https://gateway.pixazo.ai/mirelo-sfx-video-to-audio/v1/mirelo-sfx-video-to-audio-request";
const headers = {
  "Content-Type": "application/json",
  "Cache-Control": "no-cache",
  "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
};
const data = {
  video_url: "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  text_prompt: "",
  num_samples: 2,
  seed: 2105,
  duration: 10
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data));
curl -X POST "https://gateway.pixazo.ai/mirelo-sfx-video-to-audio/v1/mirelo-sfx-video-to-audio-request" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  --data-raw '{
    "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
    "text_prompt": "",
    "num_samples": 2,
    "seed": 2105,
    "duration": 10
  }'

Output

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}
Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

HeaderRequiredDefaultDescription
X-Webhook-URLYes (to enable)—HTTPS endpoint on your server that will receive the POST callback. Must respond 2xx within a few seconds (process async if needed).
X-Webhook-ModeNoterminalterminal — fires once at the final status (COMPLETED/FAILED/ERROR). sync — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-video-to-audio",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.wav"
    ],
    "media_type": "audio/wav"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-video-to-audio",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

  • terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
  • sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
  • Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
  • Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
  • HTTPS required — plain http:// URLs are rejected.

Request Parameters - Mirelo SFX Video to Audio generate request

Parameter Required Type Default Allowed values / range Description
video_urlYesstring——URL of the source video. Supported formats: mp4, mov, webm, m4v, gif.
text_promptNostring""—Additional description to guide the audio generation. Example: "rain falling on a metal roof" or "distant crowd cheering".
num_samplesNointeger2—Number of audio samples to generate. Each sample is a unique audio variation.
seedNointeger2105—Random seed for reproducibility. Use the same seed to generate identical outputs.
durationNofloat10positive numberDuration of the generated audio in seconds. Must be a positive number.

Example Request

{
  "video_url": "https://di3otfzjg1gxa.cloudfront.net/input_example.mp4",
  "text_prompt": "",
  "num_samples": 2,
  "seed": 2105,
  "duration": 10
}

Response

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header Value
Content-Typeapplication/json
Cache-Controlno-cache
Ocp-Apim-Subscription-KeyYOUR_API_KEY

Response Handling

Common status codes.

CodeMeaning
202Accepted — Request queued
Bad Request
401Unauthorized
402Insufficient Balance
403Forbidden
Too Many Requests
500Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}
// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'mirelo-sfx-video-to-audio' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "mirelo-sfx-video-to-audio",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "mirelo-sfx-video-to-audio_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "mirelo-sfx-video-to-audio",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-video-to-audio_019dxxxx/output_0.wav",
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/mirelo-sfx-video-to-audio_019dxxxx/output_1.wav"
    ],
    "media_type": "audio/wav"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

FieldTypeDescription
request_idstringUnique request identifier
statusstringQUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_idstringModel that processed the request
errorstring|nullError message if failed
output.media_urlarrayURLs to generated media (R2 CDN)
output.media_typestringMIME type of the output
created_atstringWhen request was created
completed_atstringWhen request completed
polling_urlstringStatus URL (initial response only)

Status Values

StatusDescription
QUEUEDRequest accepted, waiting to be processed
PROCESSINGBeing processed by the model
COMPLETEDDone — output contains the result
FAILEDFailed — check error field
ERRORSystem error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

  1. Send a generate request to the API endpoint
  2. Save the request_id from the response
  3. Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
  4. When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

Mirelo SFX 1.0 Video to Audio API Pricing

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