YouTube video captions by video id — SRT, XML, JSON3, text

justoneapi.x.youtube-get-video-captions-v1

Retrieve available caption tracks for a YouTube video or request captions in SRT, XML, JSON3, or plain-text format.

Price: $0.01476/successAt provider cost
Success rate: —No success-rate data yetLast 30 days · 2 calls
Latency p50: ——
Last verified: —Not verified yet

GEThttps://toolswitch.dev/v1/tools/justoneapi.x.youtube-get-video-captions-v1?format=srt&videoId=dQw4w9WgXcQPreview

Uses platform quota
Synchronous response
Reads public data

Parameters

Parameter	Type	Required	Description	Example
Query parameters
`format`	string	Optional	Caption output format. Available Values: - `srt`: SubRip caption format with timeline cues - `xml`: Original XML caption format - `json3`: YouTube original JSON caption structure - `txt`: Plain text without timeline cues One of: srt, xml, json3, txt.	`srt`
`videoId`	string	Required	The unique identifier for a YouTube video.	`dQw4w9WgXcQ`
`languageCode`	string	Optional	Caption language code, such as en, zh-Hans, or a.en. Leave it empty to retrieve available caption tracks.

Query parameters
formatstringOptional
Caption output format. Available Values: - `srt`: SubRip caption format with timeline cues - `xml`: Original XML caption format - `json3`: YouTube original JSON caption structure - `txt`: Plain text without timeline cues One of: srt, xml, json3, txt.
Example: srt
videoIdstringRequired
The unique identifier for a YouTube video.
Example: dQw4w9WgXcQ
languageCodestringOptional
Caption language code, such as en, zh-Hans, or a.en. Leave it empty to retrieve available caption tracks.

Code samples

Replace $TOOLSWITCH_KEY with the key you created in the console.

Preview

curl -X GET 'https://toolswitch.dev/v1/tools/justoneapi.x.youtube-get-video-captions-v1?format=srt&videoId=dQw4w9WgXcQ' \
  -H "X-Toolswitch-Key: $TOOLSWITCH_KEY"

import os
import requests

response = requests.request(
    "GET",
    "https://toolswitch.dev/v1/tools/justoneapi.x.youtube-get-video-captions-v1?format=srt&videoId=dQw4w9WgXcQ",
    headers={"X-Toolswitch-Key": os.environ["TOOLSWITCH_KEY"]},
)
response.raise_for_status()
print(response.text)

const response = await fetch("https://toolswitch.dev/v1/tools/justoneapi.x.youtube-get-video-captions-v1?format=srt&videoId=dQw4w9WgXcQ", {
  method: "GET",
  headers: {
    "X-Toolswitch-Key": process.env.TOOLSWITCH_KEY ?? "",
  },
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
console.log(await response.text());

This gateway API is in preview; its URL and authentication may change. The example parameters are sample data. Calls are billed at $0.01476/success, including the service fee.