https://techcrunch.com/2020/05/04/backblaze-challenges-aws-by-making-its-cloud-storage-s3-compatible/

Backblaze today announced that its B2 Cloud Storage service is now API-compatible with Amazon’s S3 storage service.

Backblaze started out as an affordable cloud backup service but over the last few years, the company has also taken its storage expertise and launched the developer-centric B2 Cloud Storage service, which promises to be significantly cheaper than similar offerings from the large cloud vendors. Pricing for B2 starts at $0.005 per GB/month. AWS S3 starts at $0.023 per GB/month.