> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mirage.strukto.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Backblaze B2

> Set up Backblaze B2 credentials for the Backblaze resource.

## Credentials

### 1. Create an application key

1. Sign in to [Backblaze](https://secure.backblaze.com/) -> **B2 Cloud Storage**
2. Go to **Application Keys** -> **Add a New Application Key**
3. Scope it to your bucket with at least **Read** access
4. Copy the **keyID** (access key id) and **applicationKey** (secret access key)
5. Note your bucket's **endpoint region** from the bucket details
   (e.g. `us-west-004`) and the **bucket** name

The endpoint is derived from `region` as `s3.<region>.backblazeb2.com`.

### 2. Set environment variables

```bash theme={null}
# .env.development
B2_BUCKET=my-bucket
B2_REGION=us-west-004
B2_ACCESS_KEY_ID=...   # B2 keyID
B2_SECRET_ACCESS_KEY=...   # B2 applicationKey
```

For Python configuration, see the [Backblaze resource](/python/resource/backblaze) docs.