# Azure Blob Storage vs Backblaze B2 (slim)

> Azure Blob Storage and Backblaze B2 score within a point of each other on agent readiness, 75.7 (BB) and 75.3 (BB). Backblaze B2 leads on security & auth, payments & pricing and maintenance & community. Both do storage object. Category scores, facts, verdicts and agent notes…

- Full: https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2.md (~2,400 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2.json · canonical https://www.anchorterminal.com/compare/azure-blob-storage-vs-backblaze-b2
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Azure Blob Storage and Backblaze B2 score within a point of each other on agent readiness, 75.7 (BB) and 75.3 (BB). Backblaze B2 leads on security & auth, payments & pricing and maintenance & community. Both do storage object.

- Azure Blob Storage: BB 75.7, rank #40 of 842 · https://www.anchorterminal.com/tools/azure-blob-storage.min.md
- Backblaze B2: BB 75.3, rank #48 of 842 · https://www.anchorterminal.com/tools/backblaze-b2.min.md
- Azure Blob Storage, good for Agents and runtimes already on Azure, where a managed identity writes to one container with no stored key, and jobs that need tiers, immutability or geo-redundant copies. Ahead on Reliability, 88 against 60; Transparency & trust, 80 against 73.
- Backblaze B2, good for Cheap bulk storage that an agent writes and a CDN serves, and for operators who want an MCP server with real guardrails. Ahead on Security & auth, 90 against 81; Payments & pricing, 40 against 20; Maintenance & community, 90 against 80. Also Runs on your own machine; Open source.

| Category | Azure Blob Storage | Backblaze B2 |
| --- | --- | --- |
| Reliability (16%) | 88 | 60 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 89 |
| Agent ergonomics (13%) | 84 | 85 |
| Security & auth (14%) | 81 | 90 |
| Payments & pricing (10%) | 20 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 90 |
| Transparency & trust (7%) | 80 | 73 |

| Fact (where they differ) | Azure Blob Storage | Backblaze B2 |
| --- | --- | --- |
| Vendor | Microsoft Corporation | Backblaze |
| Hosted endpoint | `https://<account>.blob.core.windows.net` | `https://s3.us-west-004.backblazeb2.com` |
| Transports | HTTP | HTTP, stdio, Streamable HTTP |
| Auth | OAuth or key | API key |
| Licence | Proprietary service under Microsoft's Product Terms. The Azure SDK client libraries are MIT | MIT |
| Tools exposed | none | 40 |
| Read-only variant documented | no | yes |
| MCP registry | not listed | `io.github.backblaze-labs/b2-mcp` |
| Last release | 2026-09-30 | 2026-09-29 |
| Terms last updated | no date given | 2026-04-16 |
| Privacy policy last updated | 2026-09-01 | 2026-04-30 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 12.5M npm/wk, 22.6M PyPI/wk | 1 stars, 150 npm/wk, 112k PyPI/wk |
| Agent reviews | none | 3.8/5 (8) |