Docs · Video transcript
Video transcript
What's said in a video, from TikTok's captions: WEBVTT with timestamps plus plain text.
https://api.lurkapi.com/v1/tiktok/video/transcriptWhen to use this
Use it to turn a TikTok into text: repurpose a script, search what creators say, or feed it to an LLM. transcript is WEBVTT with timestamps (the same format other TikTok APIs return); text is the same words as plain text.
Transcripts come from TikTok's own captions: auto-generated speech captions (source: asr), the creator's own captions, or TikTok's translations. Most spoken videos have them. A video without captions (music only, or captions off) returns transcript: null with languages: [].
No captions? Pass use_ai_as_fallback=true and we transcribe the audio ourselves (source: ai) for videos up to 2 minutes. That costs 5 credits in total, and only when it runs; with captions it's still 1. If it hears no speech (music only), you get 404 transcript_unavailable for 1 credit, and that answer is cached.
By default you get the original language. Pass language (e.g. es) to pick one of languages.
Deleted, private and region-locked videos return 404 not_found.
Parameters
All parameters go in the query string.
| Parameter | Description |
|---|---|
urlstringrequired | The video's URL, e.g. https://www.tiktok.com/@hubspot/video/7671325437229845774. Photo post URLs and bare video ids work too.
|
languagestringoptional | 2-letter language code, e.g. en or es. Default: the video's original language. |
use_ai_as_fallbackbooleanoptional | true: if the video has no captions, transcribe its audio with speech-to-text (videos up to 2 minutes; 5 credits in total, only when it runs).
|
Example request
Replace YOUR_API_KEY with your key, or set LURKAPI_KEY for the code. Get a free key.
curl "https://api.lurkapi.com/v1/tiktok/video/transcript?url=https%3A%2F%2Fwww.tiktok.com%2F%40hubspot%2Fvideo%2F7671325437229845774" \
-H "x-api-key: YOUR_API_KEY"const params = new URLSearchParams({
url: "https://www.tiktok.com/@hubspot/video/7671325437229845774",
});
const res = await fetch(`https://api.lurkapi.com/v1/tiktok/video/transcript?${params}`, {
headers: { "x-api-key": process.env.LURKAPI_KEY },
});
const data = await res.json();
if (!data.success) throw new Error(`${data.code}: ${data.error}`);
console.log(data.languages);import os
import requests
res = requests.get(
"https://api.lurkapi.com/v1/tiktok/video/transcript",
params={
"url": "https://www.tiktok.com/@hubspot/video/7671325437229845774",
},
headers={"x-api-key": os.environ["LURKAPI_KEY"]},
timeout=60,
)
data = res.json()
if not data["success"]:
raise RuntimeError(f"{data['code']}: {data['error']}")
print(data["languages"])Example response
A real response from this endpoint, captured from the live API and trimmed to a couple of items. Strings over 96 characters (mostly signed media URLs) are cut short and end in ….
Show the example response (1 KB)Hide
{
"success": true,
"credits_remaining": 99983,
"credits_charged": 1,
"id": "7671325437229845774",
"url": "https://www.tiktok.com/@hubspot/video/7671325437229845774",
"languages": [
{
"language": "en",
"source": "asr"
}
],
"transcript": "WEBVTT\n\n\n00:00:00.060 --> 00:00:02.400\nWhen your lead score came across …",
"text": "When your lead score came across the threshold,\nI knew there was potenti…",
"language": "en",
"source": "asr"
}Response fields
Every field of a successful response. [] marks a list: a[].b is the b of each item in a. nullable fields can be null; optional fields can be missing.
Show all 12 fieldsHide
| Field | Type | Description |
|---|---|---|
| success | true | Always true here; errors have success: false. |
| credits_remaining | number | Your balance after this call. On anonymous playground calls: free tries left today. |
| credits_charged | number | Credits this call cost; 0 on free endpoints. On anonymous playground calls: tries used (1). |
| id | string | Video id. |
| url | string | The video on tiktok.com. |
| transcript | stringnullable | The captions as WEBVTT, with timestamps. null if the video has none in that language. |
| text | stringnullable | The same captions as plain text, one cue per line. null if none. |
| language | stringnullable | Language of transcript, e.g. en. null if none. |
| source | stringnullable | asr: TikTok's auto-generated speech captions. creator: captions the creator wrote. translation: TikTok's machine translation. ai: our speech-to-text (use_ai_as_fallback). null if none. |
| languages | object[] | Every caption language TikTok has for the video. Empty when it has none. |
| languages[].language | string | Language code, usually 2 letters, e.g. en. |
| languages[].source | string | Where these captions come from (see source). |
Caching and freshness
Responses are cached for up to 30 days, so a repeat call within that window can return the same data. It still costs 1 credit.
Errors
Errors return { success: false, error, code, docs } with the HTTP status below. Validation errors, 401/402/429 rejections and 5xx failures are free; not_found is charged (how charging works). All error codes.
| Status | Code | Meaning |
|---|---|---|
| 401 | missing_api_key | No API key. Send it in the x-api-key header. |
| 401 | invalid_api_key | The key is unknown or was revoked. |
| 402 | insufficient_credits | Not enough credits for this call. Buy a pack or wait for tomorrow's top-up. |
| 404 | not_found | The endpoint, or the thing you asked for (ad, post, subreddit), doesn't exist. Charged when the platform was checked. |
| 404 | transcript_unavailable | The video has no captions and speech-to-text heard no speech in it. Charged the base credit, never the speech-to-text extra; the answer is cached. |
| 405 | method_not_allowed | Endpoints take GET with query params. |
| 429 | rate_limited | Too many calls at once. Wait for the retry-after seconds, then retry. |
| 500 | internal_error | Something broke on our side. Retry; 5xx errors are free. |
| 502 | upstream_error | The platform didn't give a usable answer. Retry; 5xx errors are free. |
| 503 | upstream_busy | All our connections to the platform are busy. Retry in a few seconds; 5xx errors are free. |
| 504 | upstream_timeout | The platform took over 30 seconds to answer. Retry; timeouts are free. |
Use it in Claude
Once LurkAPI is connected to Claude, this endpoint is the tiktok_transcript tool. Ask in plain English, for example:
Use LurkAPI's tiktok_transcript with url "https://www.tiktok.com/@hubspot/video/7671325437229845774" and summarize what you find.Claude calls tiktok_transcript with arguments like these, and each call costs 1 credit; 5 if speech-to-text runs:
{
"url": "https://www.tiktok.com/@hubspot/video/7671325437229845774"
}Tool results skip nulls and empty lists to save tokens.