/youtube/download

POST15 credits25 credits for 1440p and 2160p

a direct link to the file

one POST turns a youtube video into a direct link to the file. pick a quality from 144p to 2160p, or audio only. the download_url needs no api key, so you can hand it straight to your user.

returns a download_url to the file itself. open it within 5 minutes. 1440p and 2160p cost 25 credits instead of 15 - they are bigger files and heavier to prepare.

parameters

name	type	description	example
urlrequired	string	youtube video url	`https://www.youtube.com/watch?v=6dG1WWjew8s`
formatrequired	string	audio, mp3, m4a, 144p, 240p, 360p, 480p, 720p, 1080p, 1440p or 2160p	`720p`

every request carries X-Api-Key.

request

curl

curl -X POST 'https://api.fastsaver.io/v1/youtube/download' \
  -H 'X-Api-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"url":"https://www.youtube.com/watch?v=6dG1WWjew8s","format":"720p"}'

raw http

http

POST https://api.fastsaver.io/v1/youtube/download
Content-Type: application/json

{
  "url": "https://www.youtube.com/watch?v=6dG1WWjew8s",
  "format": "2160p"
}

response

{
  "ok": true,
  "video_id": "6dG1WWjew8s",
  "duration": 577,
  "filename": "THE POWER OF TESTOSTERONE - LITVINOV FIT (2160p, av1, youtube).mp4",
  "download_url": "https://api.fastsaver.io/v1/tunnel?id=UJLUoLGd1m2t1ScSTW1Lw...",
  "thumbnails": {
    "low": "https://i.ytimg.com/vi/6dG1WWjew8s/mqdefault.jpg",
    "max": "https://i.ytimg.com/vi/6dG1WWjew8s/maxresdefault.jpg"
  }
}

errors

status	detail	when	credits
400	Invalid format, available formats: audio, 144p, 240p, 360p, 480p, 720p, 1080p, 1440p, 2160p	`format` is not one of the values above. nothing is charged.	0
400	Insufficient credits. Please top up to your account.	the balance is below the price of this format.	0
400	download.failed	the link has no youtube video id, or we could not get the file.	0.1
400	fetch.timeout	the file was not ready within 30 seconds.	0.1
404	tunnel.not_found	you opened a 1440p or 2160p `download_url` after 10 minutes. other links answer 403 or 410 when opened late or too often. call the endpoint again.	0

limits

download_url works for 5 minutes and opens up to 3 times. open it right away; after that, call the endpoint again.
the file streams from the start: there is no Range and no resume, and Content-Length is usually missing. download it in one GET, not with a segmented downloader.
audio, mp3 and m4a ask for the same thing: the audio track as an mp3.
if a video has no file at the quality you asked for, you get the next lower one. for video, filename usually names the quality you got.
duration can be null.
we wait up to 30 seconds for the file. a slower one fails with fetch.timeout.

try it

costs 15 credits · real call

api key

goes straight to the api, never to us

url

youtube video url

format

audio, mp3, m4a, 144p, 240p, 360p, 480p, 720p, 1080p, 1440p or 2160p

paste a key, or sign in and it fills itself