To use S3 Transfer Acceleration, you need to specify the accelerated endpoint in your S3 client.
Example using Boto3 (Python):
import boto3
from botocore.client import Config
# Use the 'accelerate' configuration to enable transfer acceleration
s3 = boto3.client('s3', config=Config(s3={'use_accelerate_endpoint': True}))
# Upload a file
s3.upload_file('local-file.txt', 'my-bucket', 'remote-file.txt')