Backblaze B2 MCP serverVerifiedFeatured
@backblaze-labs
Basic information
About Backblaze B2 MCP server
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
Backblaze B2 MCP server config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"backblaze-b2": {
"command": "npx",
"args": [
"-y",
"@backblaze-labs/b2-mcp"
],
"env": {
"B2_APPLICATION_KEY_ID": "your-application-key-id",
"B2_APPLICATION_KEY": "your-application-key-secret"
}
}
}
}Backblaze B2 MCP server tools
40Verify credentials and return account info
List buckets (optional filters)
Create a persistent bucket with initial policy settings
Delete an empty bucket
Update persistent bucket settings; risky changes are gated
Read webhook notification rules with secrets redacted
Replace webhook notification rules; public HTTPS targets only
List application keys
Irreversibly revoke an application key
Create a scoped application key through the configured secret sink
Set/clear legal hold on an object
Set/clear retention on an object
List partner groups (Partner API credential)
Remove a member from a partner group (Partner API credential)
List group members (Partner API credential)
Create a Partner group member (Partner API credential)
Reserve a trial account (Partner API credential)
Inline upload of a small (≤1 MiB) control-plane object
Inline download of a small (≤1 MiB) control-plane object
Delete current object or exact version; destructive gate applies
Bulk-delete objects
Object metadata
Server-side copy
List objects
List object versions and delete markers (paginated)
Begin a multipart upload
Mint a presigned PUT URL for a part
Complete multipart upload from ordered part ETags
Abort a multipart upload
List uploaded parts
List in-progress multipart uploads (paginated)
Server-side copy of a part
Short-lived presigned PUT/GET bearer URL
Check a bucket is reachable on the S3 endpoint
Bucket region / location constraint
Set S3 lifecycle rules
Rank accounts by stored-data growth between two dates
Top egress by account or bucket over a period
A bucket's largest objects via bounded live listing
Abandoned multipart uploads consuming storage
Overview
What is Backblaze B2 MCP server?
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
How to use Backblaze B2 MCP server?
Follow the linked project README for installation and MCP client configuration.
Tools
b2_authorize_account— Verify credentials and return account infob2_list_buckets— List buckets (optional filters)b2_create_bucket— Create a persistent bucket with initial policy settingsb2_delete_bucket— Delete an empty bucketb2_update_bucket— Update persistent bucket settings; risky changes are gated
Documentation
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