Backblaze B2 is the cheapest S3-compatible storage. Here's when eustore.dev is the better choice.
| Feature | eustore.dev | Backblaze B2 |
|---|---|---|
| EU data residency | ✓ Germany & Finland | ✓ eu-central available |
| GDPR operator | ✓ Norwegian company | ✗ US company |
| API-first signup | ✓ 1 API call, no card | ✗ Web signup required |
| AI agent support | ✓ MCP, OpenAI Actions | ✗ |
| Crypto payments | ✓ USDC, ETH | ✗ |
| Storage cost | €0.02/GB/mo | $0.006/GB/mo |
| Egress cost | €0.01/GB | $0.01/GB |
| Free tier | 50 credits (no card) | 10 GB free (card required) |
Your AI agents need autonomous storage provisioning. You need a European GDPR operator (not just EU data centers). You want crypto payments. You need MCP or OpenAI Actions integration.
You need the absolute cheapest per-GB pricing. You have humans managing the account. You're storing large media files or backups where cost per GB is the primary factor.
Backblaze B2 is 3x cheaper per GB. But eustore.dev solves a different problem: autonomous AI agent access to European storage. If a human sets up your storage once, B2 wins on price. If your AI agents need to provision storage on their own, eustore.dev is the only option.
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