Set Thumbnail
curl --request POST \
--url https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail \
--header 'AccessKey: <api-key>' \
--header 'Content-Type: application/octet-stream' \
--data '"<string>"'import requests
url = "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail"
payload = "<string>"
headers = {
"AccessKey": "<api-key>",
"Content-Type": "application/octet-stream"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {AccessKey: '<api-key>', 'Content-Type': 'application/octet-stream'},
body: JSON.stringify('<string>')
};
fetch('https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode('<string>'),
CURLOPT_HTTPHEADER => [
"AccessKey: <api-key>",
"Content-Type: application/octet-stream"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail"
payload := strings.NewReader("\"<string>\"")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("AccessKey", "<api-key>")
req.Header.Add("Content-Type", "application/octet-stream")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail")
.header("AccessKey", "<api-key>")
.header("Content-Type", "application/octet-stream")
.body("\"<string>\"")
.asString();require 'uri'
require 'net/http'
url = URI("https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["AccessKey"] = '<api-key>'
request["Content-Type"] = 'application/octet-stream'
request.body = "\"<string>\""
response = http.request(request)
puts response.read_body{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}Manage Videos
Set Thumbnail
Sets the video’s thumbnail. If thumbnailUrl is omitted, the thumbnail is read from the request body as a raw image upload. If thumbnailUrl is one of thumbnail_1.jpg…thumbnail_5.jpg, an existing auto-generated thumbnail for the video is used instead. Any other value is fetched by the server as a URL, so it must point to a reachable, publicly accessible image.
POST
/
library
/
{libraryId}
/
videos
/
{videoId}
/
thumbnail
Set Thumbnail
curl --request POST \
--url https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail \
--header 'AccessKey: <api-key>' \
--header 'Content-Type: application/octet-stream' \
--data '"<string>"'import requests
url = "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail"
payload = "<string>"
headers = {
"AccessKey": "<api-key>",
"Content-Type": "application/octet-stream"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {AccessKey: '<api-key>', 'Content-Type': 'application/octet-stream'},
body: JSON.stringify('<string>')
};
fetch('https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode('<string>'),
CURLOPT_HTTPHEADER => [
"AccessKey: <api-key>",
"Content-Type: application/octet-stream"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail"
payload := strings.NewReader("\"<string>\"")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("AccessKey", "<api-key>")
req.Header.Add("Content-Type", "application/octet-stream")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail")
.header("AccessKey", "<api-key>")
.header("Content-Type", "application/octet-stream")
.body("\"<string>\"")
.asString();require 'uri'
require 'net/http'
url = URI("https://video.bunnycdn.com/library/{libraryId}/videos/{videoId}/thumbnail")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["AccessKey"] = '<api-key>'
request["Content-Type"] = 'application/octet-stream'
request.body = "\"<string>\""
response = http.request(request)
puts response.read_body{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}{
"success": true,
"message": "<string>",
"statusCode": 123
}Authorizations
AccessKey based authentication
Path Parameters
The ID of the video library.
The GUID of the video.
Query Parameters
Optional. One of thumbnail_1.jpg…thumbnail_5.jpg to reuse an auto-generated thumbnail, or a URL for the server to fetch. Omit to upload a raw image in the request body instead.
Body
application/octet-stream
Optional thumbnail file to upload
Response
The thumbnail was successfully set
Last modified on September 10, 2026
Was this page helpful?