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Side-by-side MCP evidence comparison
Evidence fieldBackblaze B2 MCP ServerShortlist candidateMCPVault for ObsidianMCP100 Recommended
Task fit
Best for
  • Backblaze B2 users who want AI-assisted object-storage operations with a deliberately scoped B2 application key.
  • Obsidian users who want local search and supervised note maintenance
  • Vaults protected by version control or reliable backups
  • Users able to expose only a dedicated, bounded vault
Not ideal for
  • Organizations that require a long operational track record before allowing AI access to production object storage.
  • Unbacked-up personal knowledge bases
  • Read-only research where a simpler filesystem search is sufficient
  • Enterprise knowledge requiring centralized authorization and audit controls
Avoid when
  • Do not use an all-access B2 application key when a bucket/prefix/capability-scoped key is sufficient.
  • The vault contains secrets, regulated data, or material that cannot reach the selected AI provider
  • Write, move, and delete tools cannot be confirmed by a human
  • The vault path cannot be narrowed to a dedicated directory
Provenance
Provenance details

First-party MCP

github:backblaze-labs · Publisher source ↗

Community implementation

BitBonsai · Publisher source ↗

Maintenance
Maintenance details

Repo: Not documented

Package: Not documented

Repo: Sep 21, 2026

Package: Not documented

Popularity evidence
GitHub stars

45

GitHub stars · checked 2026-10-21

1,672

GitHub stars · checked 2026-09-24T04:14:39.538000Z

Package downloads / 30 days

819

package downloads / 30 days · checked 2026-10-21

No reliable download data
Client coverage
Client coverage detailsNot documented
Claude Code✓ Local stdio
Claude Desktop✓ Local stdio
Codex✓ Local stdio
VS Code✓ Local stdio
Cursor✓ Local stdio
OpenCode✓ Local stdio
Client coverage noteLocal stdio runs on your computer. Streamable HTTP connects to a remotely hosted MCP server.
Access and data
AuthenticationBackblaze B2 application key/credentials as documented by the official server.None at the local stdio layer.
CostBackblaze B2 storage, download/API transaction and model/provider pricing applies.MCPVault is MIT licensed and free to run locally. MCP-host, model, backup, and storage costs remain.
PermissionsExactly bounded by the connected B2 application key's capabilities, buckets and prefixes; broad keys can enable high-impact object mutation/deletion.The server has filesystem read and write access within the supplied vault root, including note creation, overwrite or patch, frontmatter changes, moves, tags, and deletion. Operating-system permissions and the configured vault path are the primary boundary.
Data handlingObject names/content and storage metadata requested through tools can be shared with the AI client/provider.Vault content and metadata are read locally and returned to the MCP client and model. Changes are written directly to local files. MCPVault states that it does not receive, store, or transmit vault data, while the selected AI provider still processes content sent by the client.
Limitations
Tradeoffs
  • Promising signal, but it ranks below the current Recommended/Shortlist admission cohort on maturity, uniqueness, publisher trust, security clarity, or MCP-native evidence.
  • Local stdio avoids a hosted MCP service, but note contents still enter the MCP host and model context.
  • Frontmatter-aware writes are more useful than generic file access but increase integrity risk.
  • npx makes setup simple, while stricter environments may prefer a pinned and reviewed package version.
  • Version 0.16.0 migrated to MCP TypeScript SDK v2 / protocol 2026-07-28 while retaining dual-era stdio compatibility.
Risk contextObject-storage mutation/deletion authority must be tightly scoped, and the server has only a few days of production history.A selected vault can contain a large body of private knowledge, and write tools can overwrite, move, or delete it. Use a dedicated vault, reliable backups or version control, an absolute path, a reviewed package version, and explicit approval for writes.
Evidence date
Editorial review2026-10-212026-09-05
Candidate evidence2026-10-21T00:00:00Z2026-09-24T04:25:05.554391Z

Popularity, maintenance, fit, permissions, and client support are independent evidence fields.

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