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    backblaze-labs

    backblaze-labs/b2-mcp

    MCP server for Backblaze B2 Cloud Storage: a focused, safe 40-tool surface (17 native B2 SDK, 19 S3 data-plane, 4 analytics) for any MCP-compatible AI client, currently incubating in Backblaze-Labs

    api
    ai
    anthropic
    b2
    b2-labs
    backblaze
    TypeScript
    MIT
    36 stars
    5 forks
    36 GitHub watchers
    Updated Nov 1, 2026
    View on GitHub

    Build with Backblaze B2

    SDKs, agent skills, IDE extensions, and reference pipelines from Backblaze Labs. All open source.

    Explore Backblaze Labs

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    Where it stands

    Rank, growth pace and release cadence relative to everything GStars tracks.

    5 releases in the last 90 days, the latest 17 days ago, with 5 contributors on GitHub.

    Peaked at #63 in the weekly ranking the week of Sep 6, its best in the past year.

    Use Cases & Benefits

    • Implements a Model Context Protocol server enabling AI clients to safely interact with Backblaze B2 Cloud Storage via a curated set of 40 tools.
    • Provides a secure, capability-aware interface combining native B2 SDK, S3-compatible operations, and custom analytics with strict destructive action gating.
    • Use for integrating AI assistants like Claude to manage B2 buckets, keys, and objects with fine-grained access control and auditability.
    • Use for building automated workflows that require safe, programmatic control over B2 storage lifecycle, object retention, and event notifications.
    • Use for deploying containerized MCP servers to expose B2 storage capabilities securely over HTTP or stdio transports in cloud or local environments.

    Should you depend on it?

    License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.

    License

    MIT

    Permissive: commercial use, modification and redistribution are allowed with attribution.

    Community files

    • README: present
    • Contributing guide: present
    • Code of conduct: present

    Watch-outs

    No watch-outs from GStars' checks.

    General guidance from repository metadata, not legal advice. How we score

    From the README

    A Model Context Protocol server for Backblaze B2 Cloud Storage. It lets any MCP-compatible AI client (Claude, and others) operate B2 through a focused, safe set of tools.

    40 tools, assigned by backing category:

    Availability is a per-tool annotation, separate from those backing categories: durable-secret-producing tools are sink-backed for local stdio runs and remain non-secret unavailable stubs on HTTP/serverless unless an explicit sink is configured.

    Destructive actions are gated, durable B2 secrets stay out of the model's context in the default/file/off modes, and the unsafe B2_SECRET_SINK=inline escape hatch is explicit. The tool surface is deliberately lean (registration is capability-aware, so a key only ever sees tools it can use).

    Prerequisites: A supported Node.js runtime (22.23.1+, or 24 / 26) and a Backblaze B2 application key. A non-master key is all you need. The package engine floor is >=22.3.0; CI runs on Node.js 22.23.1, 24, and 26.

    The canonical package name is @backblaze-labs/b2-mcp and the canonical binary is b2-mcp (b2-mcp-server is a transition alias). The fastest setup runs it with npx, no clone or build.

    Excerpt from the backblaze-labs/b2-mcp README on GitHub (MIT license). © its authors.Read the full README on GitHub

    Daily snapshots

    Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots

    Aug 20: +0Aug 27: +0Aug 28: +0Aug 29: +0Aug 30: +0Aug 31: +0Sep 1: +0Sep 2: +7Sep 3: +1Sep 4: +0Sep 5: +0Sep 6: +0Sep 7: +0Sep 8: +0Sep 9: +10Sep 10: +12Sep 11: +0Sep 12: +1Sep 13: +1Sep 14: +1Sep 15: +1Sep 16: +1Sep 17: +0Sep 18: +0Sep 19: +0Sep 20: +0Sep 21: +0Sep 22: +0

    +35 stars over 34 days across 30 snapshot days; best day +12 on Sep 10.

    Forks

    5+5

    Open issues

    14-3

    Compared with peers in API

    Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth

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