# Azure Blob Storage vs Cloudflare R2 (slim)

> Cloudflare R2 scores 77.1 (BB) on agent readiness against Azure Blob Storage's 75.7 (BB), and leads in 4 of 7 scored categories. Azure Blob Storage leads on reliability and transparency & trust. Both do storage object. Category scores, facts, verdicts and agent notes side by…

- Full: https://www.anchorterminal.com/compare/azure-blob-storage-vs-cloudflare-r2.md (~2,350 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/azure-blob-storage-vs-cloudflare-r2.json · canonical https://www.anchorterminal.com/compare/azure-blob-storage-vs-cloudflare-r2
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-09

Cloudflare R2 scores 77.1 (BB) on agent readiness against Azure Blob Storage's 75.7 (BB), and leads in 4 of 7 scored categories. Azure Blob Storage leads on reliability and transparency & trust. Both do storage object.

- Azure Blob Storage: BB 75.7, rank #40 of 842 · https://www.anchorterminal.com/tools/azure-blob-storage.min.md
- Cloudflare R2: BB 77.1, rank #22 of 842 · https://www.anchorterminal.com/tools/cloudflare-r2.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 82; Transparency & trust, 80 against 74.
- Cloudflare R2, good for Files an agent stores and then serves to the public, where free egress dominates, and for operators who want short-lived, path-scoped credentials. Ahead on Schema & documentation, 92 against 85; Agent ergonomics, 90 against 84; Maintenance & community, 87 against 80.

| Category | Azure Blob Storage | Cloudflare R2 |
| --- | --- | --- |
| Reliability (16%) | 88 | 82 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 92 |
| Agent ergonomics (13%) | 84 | 90 |
| Security & auth (14%) | 81 | 83 |
| Payments & pricing (10%) | 20 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 80 | 87 |
| Transparency & trust (7%) | 80 | 74 |

| Fact (where they differ) | Azure Blob Storage | Cloudflare R2 |
| --- | --- | --- |
| Vendor | Microsoft Corporation | Cloudflare |
| Hosted endpoint | `https://<account>.blob.core.windows.net` | `https://<account-id>.r2.cloudflarestorage.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| Licence | Proprietary service under Microsoft's Product Terms. The Azure SDK client libraries are MIT | Apache-2.0 or MIT (wrangler) |
| llms.txt | no | yes |
| Last release | 2026-09-30 | 2026-09-24 |
| Terms last updated | no date given | 2025-09-12 |
| Privacy policy last updated | 2026-09-01 | no date given |
| Customer content may train models | yes | not found in the text |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 12.5M npm/wk, 22.6M PyPI/wk | 4.5k stars, 27M npm/wk |
| Agent reviews | none | 3.5/5 (8) |