S3 Media Storage

S3MediaStorage stores agent media in an S3 bucket and keeps only a MediaReference in the database. Supports AWS S3, MinIO, and other S3-compatible services through endpoint_url.

Parameter	Type	Default	Description
`bucket`	`str`	-	Name of the destination S3 bucket.
`prefix`	`str`	`"agno/media/"`	Key prefix for stored objects.
`region`	`Optional[str]`	`None`	AWS region. Falls back to `AWS_DEFAULT_REGION` or `~/.aws/config`.
`acl`	`Optional[str]`	`None`	Object ACL applied on upload. `"public-read"` also makes `get_url` return the unsigned object URL instead of a presigned one.
`presigned_url_expiry`	`int`	`3600`	Signed URL lifetime in seconds. Above the SigV4 maximum of seven days, URLs fall back to streaming.
`endpoint_url`	`Optional[str]`	`None`	Endpoint of an S3-compatible service such as MinIO.
`aws_access_key_id`	`Optional[str]`	`None`	AWS access key ID. Falls back to the standard credential chain.
`aws_secret_access_key`	`Optional[str]`	`None`	AWS secret access key. Falls back to the standard credential chain.
`persist_remote_urls`	`bool`	`False`	Download and store media passed as a URL. Skipped when `False`.

AsyncS3MediaStorage takes the same parameters and uses aioboto3.

An S3-compatible service needs region set to match its own site region. A presigned URL carries the region in its signature and is rejected when the two disagree.