YouTubeYouTubeSocial

Set a custom thumbnail on your YouTube video

youtube.youtube.video.thumbnail.set

Set the custom thumbnail on one of your YouTube videos

Price: freeAt list price
Success rate: 100%Last 30 days · 48 calls
Latency p50: 3.5 sp95 6.6 s
Last verified: —Not verified yet

POSThttps://toolswitch.dev/v1/tools/youtube.youtube.video.thumbnail.setBeta

Uses platform quota
Synchronous response
Reads public data

Parameters

same /upload/ host path as the video upload. Custom thumbnails need the channel to be verified — an unverified channel gets HTTP 403 forbidden even though the scope is correct, which reads like a permissions bug and is not one

Parameter	Type	Required	Description	Example
Query parameters
`videoId`	string	Required	the id videos.insert returned	`dQw4w9WgXcQ`
`uploadType`	string	Optional	media for a straight single-shot upload of the image bytes	`media`
Request body (form)
`image`	string	Required	the raw image bytes as the request body (Content-Type: image/jpeg or image/png), NOT a JSON field and NOT a URL — 2 MB cap, 1280x720 recommended	`<binary image body>`

Query parameters
videoIdstringRequired
the id videos.insert returned
Example: dQw4w9WgXcQ
uploadTypestringOptional
media for a straight single-shot upload of the image bytes
Example: media
Request body (form)
imagestringRequired
the raw image bytes as the request body (Content-Type: image/jpeg or image/png), NOT a JSON field and NOT a URL — 2 MB cap, 1280x720 recommended
Example: <binary image body>

Code samples

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

Beta

curl -X POST 'https://toolswitch.dev/v1/tools/youtube.youtube.video.thumbnail.set' \
  -H "X-Toolswitch-Key: $TOOLSWITCH_KEY"

import os
import requests

response = requests.request(
    "POST",
    "https://toolswitch.dev/v1/tools/youtube.youtube.video.thumbnail.set",
    headers={"X-Toolswitch-Key": os.environ["TOOLSWITCH_KEY"]},
)
response.raise_for_status()
print(response.text)

const response = await fetch("https://toolswitch.dev/v1/tools/youtube.youtube.video.thumbnail.set", {
  method: "POST",
  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 beta; its URL and authentication may change. The example parameters are sample data. Calls are billed at free, including the service fee.