minio-go

Minio-go is the Go SDK for that. It works with AWS S3, MinIO, Google Cloud Storage, and any S3-compatible service. Picture the Go equivalent of boto3 for Python, but S3-focused.

This is a client library, not MinIO itself. You import it into your Go application and use it to interact with object storage. Apache 2.0, maintained by the MinIO team.

The SDK is free. What you pay for is the storage backend you connect it to, whether that's AWS S3 ($0.023/GB/mo), MinIO on your own servers (free), or MinIO's commercial SUBNET support ($10/TB/mo minimum).

The catch: this is specifically for Go. If you're in Python, Node, Java, or anything else, MinIO has separate SDKs for those. And it's an S3-compatible SDK. If you need broader cloud storage abstractions (Azure Blob, etc.), you might want a cloud-agnostic library instead.