Get YouTube video captions

TikHub tool tikhub-api-youtube-web-v2-get-video-captions on looot: input fields, $0.008 per call, output shape, and code to run it with curl, JavaScript or Python.

Returns YouTube video caption list or caption content for a specific language. Optional inputs: format, video_id, video_url, language_code. Returns _code (caption language list). Supports multiple caption format outputs.

Tool id: tikhub-api-youtube-web-v2-get-video-captions
Provider: TikHub
Job: Get video captions api youtube web v2 (api.youtube.web-v2.get-video-captions)
Price: $0.008 per call. A call that fails at the provider costs $0.

Inputs

Name	Type	Required	Description
`format`	string	no	Caption format. Example: “srt”
`language_code`	string	no	Language code, returns available caption list if empty. Example: “en”
`video_id`	string	no	Video ID.
`video_url`	string	no	Video URL. Example: “https://www.youtube.com/watch?v=dQw4w9WgXcQ”

Output

Shape of the run’s result, the expected shape, not yet checked against real answers:

{ code, data: { format, content, video_id, language_code, language_name }, docs, time, params: { format, video_id, video_url, language_code }, router, message, support, cache_url, time_zone, message_zh, request_id, time_stamp, cache_message, cache_message_zh }

Run it

Every call needs your API token in LOOOT_TOKEN; Sign in shows how to get one. Each run also needs a new idempotency key, so a retry never pays twice. With wait: 30 the answer comes back inline when the run ends within 30 seconds. Otherwise you get the running run back: poll GET /v1/runs/<runId>.

Example input with placeholder values:

curl -X POST "https://api.looot.ai/v1/runs" \
  -H "Authorization: Bearer $LOOOT_TOKEN" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"endpointId":"tikhub-api-youtube-web-v2-get-video-captions","input":{"format":"srt","video_id":"<video_id>","video_url":"<video_url>","language_code":"en"},"wait":30}'

const response = await fetch("https://api.looot.ai/v1/runs", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.LOOOT_TOKEN}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    endpointId: "tikhub-api-youtube-web-v2-get-video-captions",
    input: {
      format: "srt",
      video_id: "<video_id>",
      video_url: "<video_url>",
      language_code: "en",
    },
    wait: 30,
  }),
});
const run = await response.json();
console.log(run.status, run.result);

import os
import uuid

import requests

response = requests.post(
    "https://api.looot.ai/v1/runs",
    headers={
        "Authorization": f"Bearer {os.environ['LOOOT_TOKEN']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "endpointId": "tikhub-api-youtube-web-v2-get-video-captions",
        "input": {
            "format": "srt",
            "video_id": "<video_id>",
            "video_url": "<video_url>",
            "language_code": "en",
        },
        "wait": 30,
    },
    timeout=90,
)
run = response.json()
print(run["status"], run.get("result"))

To let looot pick among every provider of this job instead, send job:api.youtube.web-v2.get-video-captions as endpointId; see the job page.