# Azure Blob Storage vs Tigris

> Azure Blob Storage scores 75.7 (BB) on agent readiness against Tigris's 44.4 (E), and leads in 6 of 7 scored categories. Tigris leads on payments & pricing. Both do storage object. Category scores, facts, verdicts and agent notes side by side.

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- Updated: 2026-10-09

Azure Blob Storage scores 75.7 (BB) on agent readiness against Tigris's 44.4 (E), and leads in 6 of 7 scored categories. Tigris leads on payments & pricing. Both do storage object.

- Azure Blob Storage: grade BB, 75.7/100, rank #40 of 842. Markdown https://www.anchorterminal.com/tools/azure-blob-storage.md · JSON https://www.anchorterminal.com/api/v1/tools/azure-blob-storage.json
- Tigris: grade E, 44.4/100, rank #778 of 842. Markdown https://www.anchorterminal.com/tools/tigris.md · JSON https://www.anchorterminal.com/api/v1/tools/tigris.json

## Which one, for what

### Azure Blob Storage (BB)

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 35
- Schema & documentation, 85 against 50
- Agent ergonomics, 84 against 53
- Security & auth, 81 against 51
- Transparency & trust, 80 against 48

Also in its favour:
- Agent-ready, a grade of BB or better
- No incidents deducted, where Tigris loses 3 points for them

Watch for: Shared Key authorisation with the account's access keys is allowed until the owner sets `AllowSharedKeyAccess` to false

### Tigris (E)

Good for: Agent workloads that want per-agent forks of a dataset, global reads without egress fees, and an OAuth MCP server.

Ahead on:
- Payments & pricing, 30 against 20

Also in its favour:
- Runs on your own machine

Watch for: 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August


## Score by category

| Category | Weight | Azure Blob Storage | Tigris | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 88 | 35 | Azure Blob Storage +53 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 85 | 50 | Azure Blob Storage +35 |
| Agent ergonomics | 13% (16.2 this run) | 84 | 53 | Azure Blob Storage +31 |
| Security & auth | 14% (17.5 this run) | 81 | 51 | Azure Blob Storage +30 |
| Payments & pricing | 10% (12.5 this run) | 20 | 30 | Tigris +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 80 | 77 | Azure Blob Storage +3 |
| Transparency & trust | 7% (8.8 this run) | 80 | 48 | Azure Blob Storage +32 |
| Negative events | ≤15 | 0 | -3 | |
| **Total** | | **75.7 · BB** | **44.4 · E** | |

## Facts side by side

| Fact | Azure Blob Storage | Tigris |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Microsoft Corporation | Tigris Data |
| Hosted endpoint | `https://<account>.blob.core.windows.net` | `https://t3.storage.dev` |
| Transports | HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | Proprietary service under Microsoft's Product Terms. The Azure SDK client libraries are MIT | MIT |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-09-30 | 2026-09-30 |
| Terms last updated | no date given | couldn't be read |
| Privacy policy last updated | 2026-09-01 | couldn't be read |
| Customer content may train models | yes | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | 12.5M npm/wk, 22.6M PyPI/wk | 4 stars, 20 npm/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Azure Blob Storage.** Microsoft Entra ID roles can be scoped to one container, and a user delegation signature hands out a link that expires within seven days. Account keys with full access stay enabled until the owner turns them off, request logs are off until configured, and an Azure account needs a person, a phone number and a payment card.

**Tigris.** No egress fees, and one endpoint (t3.storage.dev) with region auto for every location. 16 status incidents between 4 July and 2 October 2026, including outages in US regions on 31 July and 2 August.

## Before you call either

### Azure Blob Storage

1. Request an Entra ID token for https://storage.azure.com/ and send it as a Bearer header with `x-ms-version` and `x-ms-date`. Put Blob also needs `x-ms-blob-type: BlockBlob`
2. Ask for a Storage Blob Data role on the one container. Role changes can take up to 10 minutes to apply
3. To share a file, call Get User Delegation Key, then sign a SAS with `sp=r`, `spr=https` and a short expiry. Treat the URL as a secret
4. Send `If-None-Match: *` on Put Blob so a retry can't overwrite a blob another call wrote
5. On 503 ServerBusy back off exponentially. After 500 OperationTimedOut check the blob's state before retrying, since the write may have succeeded

### Tigris

1. Point the AWS SDK at https://t3.storage.dev with region `auto`; the stdio MCP README still shows the older fly.storage.tigris.dev endpoint
2. Ask for an access key with a ReadOnly or ReadWrite role on one bucket rather than an org-wide key
3. Keep presigned URLs short; Tigris accepts up to 90 days
4. Don't call tigris_list_objects on a large bucket; it walks every object with no limit or prefix
5. Use @tigrisdata/iam 2.6.0 or later before writing policies with conditions

## Questions

### Which is better for AI agents, Azure Blob Storage or Tigris?

Azure Blob Storage scores 75.7 (BB) on agent readiness against Tigris's 44.4 (E), and leads in 6 of 7 scored categories. Tigris leads on payments & pricing.

### Do Azure Blob Storage and Tigris need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call Azure Blob Storage and Tigris without installing anything?

Yes. Azure Blob Storage has a hosted endpoint at https://<account>.blob.core.windows.net and Tigris at https://t3.storage.dev.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/azure-blob-storage-vs-tigris.json, and with the fewest tokens: https://www.anchorterminal.com/compare/azure-blob-storage-vs-tigris.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "azure-blob-storage", "b": "tigris"}`. From a terminal: `anchor compare azure-blob-storage tigris`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/azure-blob-storage.json and https://www.anchorterminal.com/api/v1/tools/tigris.json

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