Cloud Storage MCP Servers — S3, Google Cloud Storage, Azure Blob, MinIO, and Beyond

At a glance: Cloud storage MCP servers across AWS S3, Google Cloud Storage, Azure Blob, MinIO, Cloudflare R2, Backblaze B2, and DigitalOcean Spaces. Google has the best-designed server (21 tools, safe/destructive split). MinIO is most feature-rich (26 tools, AI analysis). AWS still lacks a general-purpose S3 server. Rating: 3.5/5. The Landscape AWS S3 — Fragmented AWS's official awslabs/mcp monorepo includes S3 Tables (Apache Iceberg structured data) but not standard S3 operations. You can't list objects, download files, or generate presigned URLs. Best community option: txn2/mcp-s3 (1 star but 9 tools, Go, security-first — read-only default, size limits, prefix-based access control, audit logging, S3-compatible store support). Google Cloud Storage — Best Official Server googleapis/gcloud-mcp (705 stars monorepo) — 21 tools split into: Safe tools (always available): list buckets, read objects, create new objects, Storage Insights queries Destructive tools (opt-in): delete, overwrite, m