generated: '2026-06-20'
method: searched
source: >-
  https://www.backblaze.com/docs/cloud-storage-sdks and the public package
  registries (PyPI, GitHub, Maven Central). First-party Backblaze B2 client
  libraries and tools; registry status verified at fetch time.
description: >-
  First-party Backblaze client libraries, CLI, and infrastructure tooling for
  the B2 Cloud Storage (B2 Native + S3-compatible) APIs. Backblaze maintains an
  official Python SDK and CLI, a Java SDK, and a Go SDK, plus a Terraform
  provider. There is no first-party JavaScript/Node SDK; Node developers use the
  S3-compatible API via the AWS SDK, or community wrappers.
packages:
  - language: python
    registry: pypi
    name: b2sdk
    url: https://pypi.org/project/b2sdk/
    source: https://github.com/Backblaze/b2-sdk-python
    install: pip install b2sdk
    official: true
    note: Official B2 Python SDK / client library (all B2 Cloud Storage capabilities).
  - language: python
    registry: pypi
    name: b2
    url: https://pypi.org/project/b2/
    source: https://github.com/Backblaze/B2_Command_Line_Tool
    install: pip install b2
    official: true
    note: Official B2 command-line tool (ships the CLI; built on b2sdk). See cli/backblaze-cli.yml.
  - language: java
    registry: maven
    name: com.backblaze.b2:b2-sdk-core
    url: https://github.com/Backblaze/b2-sdk-java
    source: https://github.com/Backblaze/b2-sdk-java
    install: "implementation 'com.backblaze.b2:b2-sdk-core'"
    official: true
    note: Official B2 Java SDK (b2-sdk-core + b2-sdk-httpclient modules).
  - language: go
    registry: pkg.go.dev
    name: github.com/Backblaze/blazer
    url: https://pkg.go.dev/github.com/Backblaze/blazer
    source: https://github.com/Backblaze/blazer
    install: go get github.com/Backblaze/blazer/b2
    official: true
    note: Official B2 Go SDK (Blazer).
  - language: terraform
    registry: registry.terraform.io
    name: Backblaze/b2
    url: https://registry.terraform.io/providers/Backblaze/b2/latest
    source: https://github.com/Backblaze/terraform-provider-b2
    install: 'terraform { required_providers { b2 = { source = "Backblaze/b2" } } }'
    official: true
    note: Official Terraform provider for B2 buckets, keys, and files.
notes:
  - No first-party npm/Node SDK; use the S3-compatible endpoint with the AWS SDK for JavaScript.
  - The S3-compatible API works with any AWS SDK (boto3, aws-sdk-js, aws-sdk-go, etc.) unchanged.