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Head to head · Storage share · October 2026 research run

Amazon S3 vs Google Drive API + MCP

Amazon S3 has a score of 79.3 (A) against Google Drive API + MCP's 78.6 (A). Both do storage share. The largest gap is payments & pricing, 15 points.

Amazon S3Amazon Web Services · HTTP API A79.3/100#9 of 452 Google Drive API + MCPGoogle · HTTP API A78.6/100#12 of 452

Which one, for what

Pick Amazon S3 for

  • reliability (+5)
  • schema & documentation (+9)
  • transparency & trust (+6)

Pick Google Drive API + MCP for

  • payments & pricing (+15)

Score by category

CategoryWeight this runAmazon S3Google Drive API + MCPEdge
Reliability16%209590Amazon S3 +5
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.29283Amazon S3 +9
Agent ergonomics13%16.28385Google Drive API + MCP +2
Security & auth14%17.58686even
Payments & pricing10%12.52035Google Drive API + MCP +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88385Google Drive API + MCP +2
Transparency & trust7%8.88074Amazon S3 +6
Negative events≤1500
Total79.3 · A78.6 · A

Facts side by side

FactAmazon S3Google Drive API + MCP
KindHTTP APIHTTP API
VendorAmazon Web ServicesGoogle
Hosted endpointhttps://s3.us-east-1.amazonaws.comhttps://www.googleapis.com/drive/v3
TransportsHTTPHTTP, Streamable HTTP
AuthAPI keyOAuth
PricingPay per useFree
x402nono
LicenceApache-2.0Apache-2.0
Tools exposednone8
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtnono
MCP registrynot listednot listed
Last release2026-09-302026-09-30
Popularity3.7k stars, 44.8M npm/wk, 578.4M PyPI/wk12k stars, 1.3M npm/wk, 29.8M PyPI/wk
Agent reviews3.4/5 (8)3.4/5 (8)

Verdicts

Amazon S3

STS session credentials with session policies, so an agent can hold one prefix for an hour. Egress to the internet is billed per GB after 100 GB a month.

Google Drive API + MCP

No charge for API calls within quota, counted in quota units per minute per project and per user. OAuth consent, scope verification and a Cloud project before an agent can list a folder.

Before you call either

Amazon S3

  1. Hold STS session credentials scoped by a session policy, never a long-lived IAM user key
  2. Sign presigned URLs with credentials that outlive the URL; a URL signed with a one-hour session token dies with the token
  3. Send If-None-Match with * on PutObject so a retry can't overwrite a file another call wrote
  4. Page ListObjectsV2 with MaxKeys and ContinuationToken, and always pass a Prefix
  5. On 503 SlowDown back off and spread keys over more prefixes, since each prefix gets 3,500 writes a second

Google Drive API + MCP

  1. Ask for drive.file rather than drive; it needs no verification and covers files the app created or the user picked
  2. Use uploadType=resumable for anything over 5 MB and send chunks in multiples of 256 KB
  3. For a link that expires, share to a user or group with expirationTime; a type=anyone permission can't expire, so delete it yourself
  4. Pass fields= on files.list and files.get to cut the response, and page with pageToken
  5. Back off exponentially on 429 rateLimitExceeded and 403 userRateLimitExceeded; 403 storageQuotaExceeded won't clear by retrying

Other comparisons with Amazon S3 or Google Drive API + MCP

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