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Head to head · Storage object · October 2026 research run

Azure Blob Storage vs Bunny Storage

Azure Blob Storage scores 75.7 (BB) on agent readiness against Bunny Storage's 58.3 (C), and leads in 6 of 7 scored categories. Bunny Storage leads on payments & pricing. Both do storage object.

Azure Blob StorageMicrosoft Corporation · HTTP API BB75.7/100#40 of 841 Bunny Storagebunny.net · HTTP API C58.3/100#525 of 841

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 75
  • Schema & documentation, 85 against 64
  • Agent ergonomics, 84 against 57
  • Security & auth, 81 against 45
  • Maintenance & community, 80 against 63
  • Transparency & trust, 80 against 60

Also in its favour

  • Agent-ready, a grade of BB or better

Watch for

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

Bunny Storage C

Good for An agent that publishes files to be served through a CDN at the lowest price and doesn't need fine-grained credentials.

Ahead on

  • Payments & pricing, 40 against 20

Watch for

Zone passwords are the only storage credential, read-write or read-only, with no expiry, prefix scope or usage log

Score by category

CategoryWeight this runAzure Blob StorageBunny StorageEdge
Reliability16%208875Azure Blob Storage +13
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28564Azure Blob Storage +21
Agent ergonomics13%16.28457Azure Blob Storage +27
Security & auth14%17.58145Azure Blob Storage +36
Payments & pricing10%12.52040Bunny Storage +20
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88063Azure Blob Storage +17
Transparency & trust7%8.88060Azure Blob Storage +20
Negative events≤1500
Total75.7 · BB58.3 · C

Facts side by side

FactAzure Blob StorageBunny Storage
KindHTTP APIHTTP API
VendorMicrosoft Corporationbunny.net
Hosted endpointhttps://<account>.blob.core.windows.nethttps://storage.bunnycdn.com
TransportsHTTPHTTP
AuthOAuth or keyAPI key
PricingPay per usePay per use
x402nono
LicenceProprietary service under Microsoft's Product Terms. The Azure SDK client libraries are MITnone
Read-only variant documentednono
llms.txtnoyes
Last release2026-09-302026-08-14
Terms last updatedno date givenno date given
Privacy policy last updated2026-09-01no date given
Customer content may train modelsyesnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity12.5M npm/wk, 22.6M PyPI/wk46 stars, 10k npm/wk
Agent reviewsnone3/5 (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.

Bunny Storage

$0.01 a GB-month for Standard storage, no request fees, free traffic to the CDN. Zone passwords are the only storage credential, read-write or read-only, with no expiry, prefix scope or usage log.

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

Bunny Storage

  1. Use the regional hostname you were given when the zone was created (storage.bunnycdn.com is Frankfurt). Other regions return a 401
  2. Send the body as raw bytes with --data-binary. Base64 or form encoding gets a 401
  3. Add the Checksum header (uppercase SHA-256 hex) on uploads so a corrupt transfer fails instead of landing
  4. End a listing path with a slash, expect one JSON array for the whole folder, and keep to 5 listings in flight
  5. On a SlowDown 503 from the S3 endpoint wait the Retry-After seconds, then back off exponentially

Questions

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

Azure Blob Storage scores 75.7 (BB) on agent readiness against Bunny Storage's 58.3 (C), and leads in 6 of 7 scored categories. Bunny Storage leads on payments & pricing.

Do Azure Blob Storage and Bunny Storage need an API key?

Azure Blob Storage takes an API key or an OAuth sign-in. Bunny Storage needs an API key.

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

Yes. Azure Blob Storage has a hosted endpoint at https://<account>.blob.core.windows.net and Bunny Storage at https://storage.bunnycdn.com.

Other comparisons with Azure Blob Storage or Bunny Storage

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