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Video Translator API

spicyapi/video-translator-v1/video-translate

Video Translator transcribes the speech in a clip, translates it into one of 28 languages and voices it again, optionally in each speaker's own cloned voice, returning the same picture with the new audio and a matching subtitle file. Billed per started minute of the source clip.

From $0.005/s
Run model

Workbench

Send a request

Quickstart

Examples use the selected endpoint’s public parameter definitions. Replace the API key and example media, then send the request from your server.

SDKs & integrations
POSThttps://api.spicyapi.ai/api/v1/jobs/createTask

API authentication

Keep the API key in the server environment variable SPICY_API_KEY. Use Bearer authentication and Content-Type: application/json for JSON requests.

Authorization: Bearer $SPICY_API_KEY
# Generate the idempotency key once; reuse it when retrying after a lost response.
export SPICY_IDEMPOTENCY_KEY="${SPICY_IDEMPOTENCY_KEY:-$(uuidgen)}"
curl -X POST https://api.spicyapi.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $SPICY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $SPICY_IDEMPOTENCY_KEY" \
  -d '{
  "model": "spicyapi/video-translator-v1/video-translate",
  "input": {
    "source_language": "auto",
    "target_language": "en",
    "video_url": "https://example.com/reference.mp4"
  }
}'

# Copy data.taskId from the response into TASK_ID, then poll the status.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.spicyapi.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $SPICY_API_KEY"

Generated from this model’s input schema — the same one the API validates every request against.

Input parameters

Place these fields inside the request body’s input object. Names and types match the API. Do not assume a default when none is specified.

video_urlstringRequired

The clip to translate, 1 second to 10 minutes. The picture comes back unchanged. It must be a direct link to the video file — a page that plays the video hands us HTML instead and the call fails with the charge refunded. Uploading the file is the most reliable route. Its length sets the price, in started minutes.

Default
Not specified
Constraints
minLength:1
contentMediaType:["video/mp4","video/webm","video/quicktime"]
glossaryarray<object>Optional

Names, brands and phrases with a fixed translation, as term / translation pairs, up to 100. Use it for names that should not be translated at all by giving the same text on both sides. Does not change the price.

Default
Not specified
Constraints
maxItems:100
speaker_countintegerOptional

How many people speak in the clip, 1 to 4. Leave it out to let the tool count them. Setting it on a dialogue keeps each line with the right voice. Does not change the price.

Default
Not specified
Allowed values
1234
keep_background_audiobooleanOptional

On by default: the music and sound effects stay under the dub. Off: only the translated voices are returned, with silence between lines. Does not change the price.

Default
true
clone_voicebooleanOptional

Off by default. On: each speaker is re-voiced in a voice modelled on their own. Off: the tool chooses the voices. Does not change the price.

Default
false
source_languagestringOptional

The language spoken in the clip. Default auto, which detects it. Set it when there is music under the voice, a heavy accent or long pauses: detection can fail on those clips, and the task then fails with the charge refunded. Over 100 languages. Does not change the price.

Default
"auto"
Allowed values
"auto""en""zh-CN""zh-TW""yue""es""fr""de""it""pt""ru""ja""ko""ar""hi""tr""vi""th""id""ms""nl""pl""uk""sv""fi""da""no""nn""cs""sk""ro""hu""el""bg""hr""sr""sl""bs""mk""sq""lt""lv""et""he""fa""ur""ps""sd""bn""as""pa""gu""mr""ne""sa""ta""te""kn""ml""si""my""km""lo""bo""ka""hy""az""kk""uz""tg""tk""mn""ba""tt""be""is""fo""cy""br""eu""gl""ca""oc""lb""la""mt""af""sw""so""am""ha""yo""ln""sn""mg""tl""jw""su""haw""mi""ht""yi"
target_languagestringOptional

The language to dub into, one of 28. Default English. It must differ from the language spoken in the clip. Does not change the price.

Default
"en"
Allowed values
"en""es""fr""de""it""pt""nl""sv""da""no""fi""el""ru""pl""tr""he""id""ms""vi""th""tl""sw""zh-CN""zh-TW""ja""ko""ar""hi"

Track the task

HTTP 202 means the task was accepted, not completed. Save the returned taskId and query that task. Do not create another task while waiting for its result.

Accepted response
HTTP/1.1 202 Accepted
Location: /api/v1/jobs/recordInfo?taskId=job_01k3m8x9q2z4v7n5p6r8s0t1w3

{
  "code": 200,
  "msg": "success",
  "request_id": "req_example_create",
  "data": {
    "taskId": "job_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "state": "queued",
    "estimatedCost": "0.750000"
  }
}

The accepted response includes the estimate so your app can show the same amount in task history and billing.

Read the job
curl --get "https://api.spicyapi.ai/api/v1/jobs/recordInfo" \
  --data-urlencode "taskId=$TASK_ID" \
  -H "Authorization: Bearer $SPICY_API_KEY"

Start polling at about 2 seconds and gradually increase the interval. Stop at a terminal state. After a connection failure, query the original taskId. Retry creation only with the original idempotency key and body.

Or let the callback find you
import { verifyWebhook } from "@spicyapi/sdk";

// express.raw keeps the bytes we signed; express.json never matches.
app.post("/hooks/spicy", express.raw({ type: "application/json" }), (req, res) => {
  const { payload } = verifyWebhook({
    rawBody: req.body,
    timestamp: req.header("X-Webhook-Timestamp"),
    signature: req.header("X-Webhook-Signature"),
    payloadVersion: Number(req.header("X-Webhook-Payload-Version")),
    secret: process.env.SPICY_WEBHOOK_SECRET,
  });
  res.status(200).end();
  void handleFinishedTask(payload);
});

Pass callBackUrl when you create the task and the finished record is POSTed to you — no polling loop at all. Every delivery carries X-Webhook-Timestamp, X-Webhook-Signature and X-Webhook-Payload-Version. The signature is a base64 HMAC-SHA256 over taskId.timestamp.sha256(body), so it must be checked against the raw bytes: parsing the JSON and re-serialising it changes them and the check will fail. Failed deliveries are retried, so the same taskId can arrive twice — make the handler idempotent. Answer 2xx first and do the work afterwards; a slow handler is treated as a failed delivery.

Read the result

Consume output only when state is succeeded. On failure, use errorCode, errorMessage and request_id to investigate. Example costs and states do not represent an actual bill.

Completed response example
{
  "code": 200,
  "msg": "success",
  "request_id": "req_example_record",
  "data": {
    "taskId": "job_01k3m8x9q2z4v7n5p6r8s0t1w3",
    "model": "spicyapi/video-translator-v1/video-translate",
    "state": "succeeded",
    "output": {
      "assets": [
        {
          "key": "tasks/2026/08/28/job_01k3m8x9q2z4v7n5p6r8s0t1w3/3f7a1c9e5b2d48f0a6c1e3d5b7f9a1c3.mp4",
          "mime": "video/mp4",
          "url": "https://example.r2.cloudflarestorage.com/results/job_01k3m8x9q2z4v7n5p6r8s0t1w3/result.mp4?X-Amz-Signature=SIGNATURE_FROM_RESPONSE",
          "expiresAt": "2026-08-28T12:20:08.000Z"
        }
      ]
    },
    "cost": "0.750000",
    "settled": true,
    "createdAt": "2026-08-28T12:00:00Z",
    "completedAt": "2026-08-28T12:00:30Z"
  }
}

For each available asset, open or download assets[].url directly without an API Authorization header. The signed URL expires at expiresAt; poll the task again to refresh it while the asset remains within its retention period. A pending or unavailable asset has no URL. Treat signed URLs as private.

SDKs & integrations

Use SpicyAPI in your app, terminal, AI assistant or visual workflow. Choose a setup guide below.

SDKs
TypeScript · Python · Go · PHP · Java
CLI
Terminal commands and automation scripts.
MCP
Claude Code · Cursor · Codex
Agent Skill
Reusable instructions for your AI assistant.
n8n
Self-hosted community nodes and importable HTTP Request templates for n8n Cloud.
ComfyUI
Image, video and audio workflows on a node canvas.

More integrations

SillyTavernTelegram / DiscordApp proxyOpenAI SDKLangChainVercel AI SDK
Browse ready-to-use workflows

Use it in ComfyUI

Install the SpicyAPI nodes from ComfyUI Manager or with the command below, then search for Video Translator · Translate and Dub Video on the canvas. The node has the same options as this page and shows its price before it runs.

cd ComfyUI/custom_nodes
git clone https://github.com/spicyapi-ai/comfyui-spicyapi
Workflow examplesSetup guideSource on GitHub