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Cloudflare R2

Cloudflare R2 is S3-compatible object storage with zero egress fees. Blober connects via the S3-compatible API.

Path format:

bucket-name/path/to/file.ext

Capabilities

✅ Browse buckets and objects
✅ Upload files
✅ Download files
✅ Delete objects
✅ S3-compatible API
✅ Zero egress fees

Prerequisites

A Cloudflare account (create one)
R2 enabled on your account
At least one R2 bucket
API credentials with R2 access

Required Credentials

Account ID

Option key: accountId
Where to find: Cloudflare dashboard => Overview => right sidebar
Format: 32-character hex string
Example: a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4

Access Key ID

Option key: accessKeyId
Format: 32 alphanumeric characters
Example: abc123def456ghi789jkl012mno345pq

Secret Access Key

Option key: secretAccessKey
Format: 64-character string
Example: abcdefghijklmnopqrstuvwxyz1234567890ABCDEFGHIJKLMNOP

Setup (Cloudflare Dashboard)

1. Create an R2 Bucket

Go to Cloudflare Dashboard
Select R2 from the sidebar
Click Create bucket
Enter a bucket name (lowercase, unique within your account)
Click Create bucket

2. Create API Credentials

In R2 settings, click Manage R2 API Tokens
Click Create API token
Configure the token:
- Token name: Give it a descriptive name (e.g., blober-access)
- Permissions: Object Read & Write (or as needed)
- Bucket scope: Specific bucket or all buckets
Click Create API Token
Copy Access Key ID and Secret Access Key immediately (secret shown only once!)

3. Find Your Account ID

Go to the Cloudflare dashboard
Click on any domain or go to Overview
The Account ID is in the right sidebar under “API”
Copy the Account ID

4. Configure in Blober

In Blober, go to Workflows => New Workflow
Select Cloudflare R2 as source or destination
Enter:
- Account ID
- Access Key ID
- Secret Access Key
Test by browsing your buckets

External References