Dubbing

Dub a video into one or more target languages — translated speech, mixed back under the original music/effects bed. Returns 202 Accepted with a task_id; poll GET /v1/tasks/:task_id until the task reaches a terminal status.

POST/v1/dubbingmultipart/form-data

API URLhttps://api.sonilo.com/v1/dubbing

Send API requests to https://api.sonilo.com. The platform.sonilo.com/docs pages are documentation only and are not API endpoints.

curl -X POST https://api.sonilo.com/v1/dubbing \
  -H "Authorization: Bearer sk_your_api_key" \
  -F "video_url=https://example.com/clip.mp4" \
  -F 'languages=["es", "fr"]'
# => {"task_id": "9f5f2f7e-...", "status": "processing"}

curl https://api.sonilo.com/v1/tasks/9f5f2f7e-... \
  -H "Authorization: Bearer sk_your_api_key"
# poll until "status" is "succeeded" or "failed"

import time
import requests

headers = {"Authorization": "Bearer sk_your_api_key"}

submit = requests.post(
    "https://api.sonilo.com/v1/dubbing",
    headers=headers,
    files={
        "video_url": (None, "https://example.com/clip.mp4"),
        "languages": (None, '["es", "fr"]'),
    },
    timeout=30,
)
submit.raise_for_status()
task_id = submit.json()["task_id"]

while True:
    poll = requests.get(
        f"https://api.sonilo.com/v1/tasks/{task_id}",
        headers=headers,
        timeout=30,
    )
    poll.raise_for_status()
    task = poll.json()
    if task["status"] != "processing":
        break
    time.sleep(3)

if task["status"] == "succeeded":
    print(task["outputs"])
else:
    print(task["error"])

const headers = { Authorization: "Bearer sk_your_api_key" };

const form = new FormData();
form.append("video_url", "https://example.com/clip.mp4");
form.append("languages", JSON.stringify(["es", "fr"]));

const submit = await fetch("https://api.sonilo.com/v1/dubbing", {
  method: "POST",
  headers,
  body: form,
});
if (!submit.ok) {
  throw new Error(`HTTP ${submit.status}: ${await submit.text()}`);
}
const { task_id } = await submit.json();

let task;
do {
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://api.sonilo.com/v1/tasks/${task_id}`, { headers });
  if (!poll.ok) {
    throw new Error(`HTTP ${poll.status}: ${await poll.text()}`);
  }
  task = await poll.json();
} while (task.status === "processing");

if (task.status === "succeeded") {
  console.log(task.outputs);
} else {
  console.log(task.error);
}

{
  "task_id": "9f5f2f7e-…",
  "status": "processing"
}

Authorization

Authenticate via Bearer token. Generate keys at the API Keys page and pass them in the Authorization header on every request. Keep keys server-side, for example in SONILO_API_KEY.

Authorization: Bearer sk_your_api_key

Store the key server-side, commonly as SONILO_API_KEY. A 401 means the key is missing, invalid, or revoked. A 403 means the key is valid but the account does not have access to that endpoint or workspace.

Body Parameters

videofile

Video file upload. Provide either video or video_url, not both. Accepted formats: mp4, mov, webm, m4v, gif (animated). Max file size: default 300MB. Max duration: 180 sec.

video_urlstring

URL to a video file. Provide either video or video_url, not both. Must be a public https:// URL — plain http:// is rejected (the dubbing pipeline requires https); private/internal addresses are rejected.

languagesstring

Optional JSON array of target language codes, e.g. ["es", "fr"]. Defaults to ["zh_cn", "es", "fr"] when omitted. Supported codes: en, zh_cn, ja, ko, pt, es, de, fr, it, ru. Billed as video duration × number of languages requested.

Response

task_idstring

The task identifier. Poll the Get Task endpoint (GET /v1/tasks/:task_id) until the task reaches a terminal status.

statusstring

Always processing on submission — generation runs asynchronously.

outputsobject

Present when the task succeeded — a map of language code to a temporary download URL for that language's dubbed video, valid for 7 days.

duration_secondsnumber

The source video's duration, in seconds. Present when the task succeeded.

curl -X POST https://api.sonilo.com/v1/dubbing \
  -H "Authorization: Bearer sk_your_api_key" \
  -F "video_url=https://example.com/clip.mp4" \
  -F 'languages=["es", "fr"]'
# => {"task_id": "9f5f2f7e-...", "status": "processing"}

curl https://api.sonilo.com/v1/tasks/9f5f2f7e-... \
  -H "Authorization: Bearer sk_your_api_key"
# poll until "status" is "succeeded" or "failed"

import time
import requests

headers = {"Authorization": "Bearer sk_your_api_key"}

submit = requests.post(
    "https://api.sonilo.com/v1/dubbing",
    headers=headers,
    files={
        "video_url": (None, "https://example.com/clip.mp4"),
        "languages": (None, '["es", "fr"]'),
    },
    timeout=30,
)
submit.raise_for_status()
task_id = submit.json()["task_id"]

while True:
    poll = requests.get(
        f"https://api.sonilo.com/v1/tasks/{task_id}",
        headers=headers,
        timeout=30,
    )
    poll.raise_for_status()
    task = poll.json()
    if task["status"] != "processing":
        break
    time.sleep(3)

if task["status"] == "succeeded":
    print(task["outputs"])
else:
    print(task["error"])

const headers = { Authorization: "Bearer sk_your_api_key" };

const form = new FormData();
form.append("video_url", "https://example.com/clip.mp4");
form.append("languages", JSON.stringify(["es", "fr"]));

const submit = await fetch("https://api.sonilo.com/v1/dubbing", {
  method: "POST",
  headers,
  body: form,
});
if (!submit.ok) {
  throw new Error(`HTTP ${submit.status}: ${await submit.text()}`);
}
const { task_id } = await submit.json();

let task;
do {
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://api.sonilo.com/v1/tasks/${task_id}`, { headers });
  if (!poll.ok) {
    throw new Error(`HTTP ${poll.status}: ${await poll.text()}`);
  }
  task = await poll.json();
} while (task.status === "processing");

if (task.status === "succeeded") {
  console.log(task.outputs);
} else {
  console.log(task.error);
}

{
  "task_id": "9f5f2f7e-…",
  "status": "processing"
}