How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Backblaze Files API

File upload, download, listing, deletion, and metadata

Backblaze Files API is one of 7 APIs that Backblaze publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include File. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and a getting-started guide.

This API exposes 10 operations across 10 paths, and defines 13 schemas. It is described by OpenAPI 3.0.3, at version v4.

Requests are made against a single base URL, https://api.backblazeb2.com.

10 operations 10 paths 13 schemas 2 GET8 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
v4
Server
https://api.backblazeb2.com
Authentication
HTTP Bearer, HTTP Basic
Resource Areas
1

Authentication & Security 2

Backblaze Files API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (ApplicationKeyAuth). It accepts HTTP basic authentication (BasicAuth). By default, every request must be authenticated.

  • ApplicationKeyAuth — Authorization token obtained from b2authorizeaccount
  • BasicAuth — HTTP Basic auth using applicationKeyId as username and applicationKey as password

Paths & Operations 10

Across 10 paths, the API surfaces 10 operations — 2 GET, 8 POST. Each is listed below with its method, path, parameters, and response codes.

Files 10

File upload, download, listing, deletion, and metadata

POST
/b2api/v4/b2_get_upload_url
Backblaze B2 Native API Get Upload URL
getUploadUrl body → 200401
POST
/b2api/v4/b2_upload_file
Backblaze B2 Native API Upload File
uploadFile 5 params body → 200401
GET
/b2api/v4/b2_download_file_by_id
Backblaze B2 Native API Download File by ID
downloadFileById 1 param → 200401404
GET
/b2api/v4/b2_download_file_by_name/{bucketName}/{fileName}
Backblaze B2 Native API Download File by Name
downloadFileByName 2 params → 200401404
POST
/b2api/v4/b2_get_file_info
Backblaze B2 Native API Get File Info
getFileInfo body → 200401404
POST
/b2api/v4/b2_delete_file_version
Backblaze B2 Native API Delete File Version
deleteFileVersion body → 200401404
POST
/b2api/v4/b2_list_file_names
Backblaze B2 Native API List File Names
listFileNames body → 200401
POST
/b2api/v4/b2_list_file_versions
Backblaze B2 Native API List File Versions
listFileVersions body → 200401
POST
/b2api/v4/b2_copy_file
Backblaze B2 Native API Copy File
copyFile body → 200401
POST
/b2api/v4/b2_hide_file
Backblaze B2 Native API Hide File
hideFile body → 200401

Schemas 13

The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are FileInfo (10 properties), ListFileVersionsRequest (6 properties), CopyFileRequest (5 properties), ListFileNamesRequest (5 properties). Each schema is shown below with its type and property counts.

GetFileInfoRequest
object
1 property 1 required
CopyFileRequest
object
5 properties 2 required
ListFileVersionsResponse
object
3 properties
DeleteFileVersionResponse
object
2 properties
GetUploadUrlRequest
object
1 property 1 required
HideFileRequest
object
2 properties 2 required
ListFileNamesRequest
object
5 properties 1 required
GetUploadUrlResponse
object
3 properties
ListFileVersionsRequest
object
6 properties 1 required
FileInfo
object
Information about a stored file
10 properties
ListFileNamesResponse
object
2 properties
DeleteFileVersionRequest
object
3 properties 2 required
ErrorResponse
object
Standard B2 error response
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

backblaze-files-api-openapi.yml Raw ↑

Other APIs Backblaze publishes across the network.

Backblaze S3-Compatible API
Backblaze Application Keys API
Backblaze Authorization API
Backblaze Buckets API
Backblaze Large Files API
Backblaze Notifications API
Where this information came from

This is an independent, third-party profile of Backblaze Files API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.