api · b2b

social media downloader api

one REST API to download videos, photos and audio from six platforms. the same engine behind fastsaver.io and @fastsaver_bot — as a service for your product.

quick start

one GET request covers most platforms:

curl "https://api.fastsaver.io/v1/fetch?url=https://www.instagram.com/reel/DRVO0TKkWPD/" \
  -H "X-Api-Key: YOUR_KEY"

the response is flat JSON with direct file links:

{
  "ok": true,
  "id": "DRVO0TKkWPD",
  "source": "instagram",
  "type": "video",
  "download_url": "https://scontent.cdninstagram.com/v/512204981_n.mp4?…",
  "thumbnail_url": "https://scontent.cdninstagram.com/v/512204981_n.jpg?…",
  "width": 1080,
  "height": 1920,
  "duration": 31,
  "caption": "golden hour in lisbon"
}

endpoints

GET /v1/fetch?url=… — tiktok, instagram, facebook, x, pinterest
GET /v1/youtube/info?url=… — list available formats
POST /v1/youtube/download — resolve the format you picked

get an api key read the docs

guides

frequently asked questions

Which platforms does the API support?: TikTok, Instagram, YouTube, Facebook, X (Twitter) and Pinterest — videos, photos, albums, and TikTok audio as MP3.
How do I authenticate?: With an API key sent as an X-Api-Key header on every request. Keys are issued at api.fastsaver.io.
Does the TikTok endpoint remove the watermark?: Yes — download URLs point at the clean source file, not the watermarked in-app version.
Can it download private content?: No. Public posts only, by design — same rule as the FastSaver website and Telegram bot.
Where are the docs and pricing?: At api.fastsaver.io — full endpoint reference, keys and plans live there.

just want to download something? use the downloader.