Live translation for your own product

# One text, or up to 50: "text": ["Good morning", "Thank you"]
curl https://api.sponkly.com/v1/translate \
  -H "Authorization: Bearer $SPONKLY_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text": "Bugün hava çok güzel.", "target": "en", "source": "tr"}'

// JavaScript (Node 18+, Deno, Bun)
const res = await fetch("https://api.sponkly.com/v1/translate", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.SPONKLY_KEY}`, "Content-Type": "application/json" },
  body: JSON.stringify({ text: ["Good morning", "Thank you"], target: "de" }),
});
const { translations } = await res.json(); // [{ text: "Guten Morgen" }, { text: "Danke" }]

# Python
import os, requests
r = requests.post("https://api.sponkly.com/v1/translate",
    headers={"Authorization": f"Bearer {os.environ['SPONKLY_KEY']}"},
    json={"text": "How are you?", "target": "ja", "context": "A message to a hotel guest"})
print(r.json()["translation"])

Fields: text (string or array), target (language code), source (optional), context (optional, up to 1,000 characters that tell what the text is about). You pay per character sent.

// Node.js (npm i ws). Send 16 kHz mono 16-bit PCM in ~100 ms frames, in real time.
import WebSocket from "ws";
const ws = new WebSocket("wss://api.sponkly.com/v1/live?source=en&target=tr&voice=1", {
  headers: { Authorization: `Bearer ${process.env.SPONKLY_KEY}` },
});
ws.on("message", (raw) => {
  const e = JSON.parse(raw);
  if (e.t === "cap" && e.done) console.log("caption:", e.text);   // a translated line
  if (e.t === "pcm") play(Buffer.from(e.d, "base64"), e.r);      // translated voice, 24 kHz PCM
});
microphone.on("data", (frame) => ws.send(frame));               // binary frames

// Browsers cannot set headers: new WebSocket(url, ["sponkly-key", key]). Never put your key in a public page —
// open the socket from your server, or from an app only your own team uses.

Parameters: source and target (language codes), voice=0 for captions only (half price). Send audio in real time (faster is refused). Up to 10 sessions at once per account, 2 hours each. You pay per second of translated speech; silence and music are free.

curl https://api.sponkly.com/v1/speech \
  -H "Authorization: Bearer $SPONKLY_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text": "Merhaba, hoş geldiniz.", "language": "tr", "voice": "female", "format": "mp3"}' \
  --output welcome.mp3

Fields: text (up to 4,096 characters), language, voice (female, male, neutral, or alloy, ash, ballad, coral, echo, fable, onyx, nova, sage, shimmer, verse), format (mp3, wav or opus), speed (0.5–2). The cost is in the X-Sponkly-Cost-Usd header.

curl https://api.sponkly.com/v1/transcribe \
  -H "Authorization: Bearer $SPONKLY_KEY" \
  -F [email protected] \
  -F language=tr \
  -F translate_to=en

{ "text": "…", "language": "tr", "duration_seconds": 182.4,
  "segments": [{ "start": 0.0, "end": 4.2, "text": "…" }],
  "translation": { "text": "…", "target": "en" }, "cost_usd": "0.030430" }

# 1. Ask for a video: dubbed into Turkish, with Turkish subtitles
curl https://api.sponkly.com/v1/videos -H "Authorization: Bearer $SPONKLY_KEY" -H "Content-Type: application/json" \
  -d '{"target": "tr", "dub": true, "subtitles": "translated", "content_type": "video/mp4", "size_bytes": 48211022}'
# → { "id": "…", "upload": { "method": "PUT", "url": "https://…", "headers": { "Content-Type": "video/mp4" } } }

# 2. Upload the file to that link
curl -X PUT -H "Content-Type: video/mp4" --data-binary @talk.mp4 "<upload.url>"

# 3. Start it, then poll until "status": "ready"
curl -X POST https://api.sponkly.com/v1/videos/<id>/start -H "Authorization: Bearer $SPONKLY_KEY"
curl https://api.sponkly.com/v1/videos/<id> -H "Authorization: Bearer $SPONKLY_KEY"
# → { "status": "ready", "cost_usd": "0.500000",
#     "result": { "video_url": "https://…", "subtitles": { "tr": "https://…srt", "en": "https://…srt" } } }

Fields: target, source (optional), dub (true for a translated voice), subtitles (translated, original, both or none), content_type (video/mp4 or video/quicktime), size_bytes, title (optional). You pay per second of video once its length is known. Results stay downloadable for 7 days.

curl https://api.sponkly.com/v1/balance -H "Authorization: Bearer $SPONKLY_KEY"
# → { "balance_usd": "48.213400", "next_expiry": "2027-10-22T09:12:00.000Z" }

curl "https://api.sponkly.com/v1/usage?limit=20" -H "Authorization: Bearer $SPONKLY_KEY"
# → { "data": [{ "product": "live", "units": 312.5, "unit": "second", "cost_usd": "0.520834", … }], "has_more": false }