Limits & Quotas
Account limits
| Limit | Trial | Paid |
|---|---|---|
| Storage | 1 TB (1,000 GB) | No limit |
| Egress bandwidth | 2 TB (cumulative over the trial) | No limit |
| API operations | Unlimited | Unlimited |
| Buckets per account | — | 100 in eu-west-1, 300 in us-east-1 |
During the trial these two caps behave differently: reaching the storage cap write-locks the account (reads still work), while reaching the egress cap disables it entirely. Trial egress is a single cumulative budget for the whole 30 days, not a monthly amount that resets. See Trial & Billing.
The bucket limit is provisioned per account rather than fixed by plan, and it differs by region. On a paid plan it is 100 buckets in eu-west-1 and 300 in us-east-1. Contact support if you need a higher limit.
The trial lasts 30 days. After it ends, your account enters a 7-day read-only grace period. If you do not upgrade before the grace period ends, the account is disabled and access is blocked. See Trial & Billing for the full timeline and email schedule.
Object limits
| Limit | Value |
|---|---|
| Maximum object size | 5 TB |
| Maximum object size (single PUT) | 5 GB |
| Maximum parts per multipart upload | 10,000 |
| Minimum part size (multipart) | 5 MB |
| Maximum part size (multipart) | 5 GB |
| Maximum object key length | 1,024 bytes |
| Maximum metadata size per object | 2 KB |
The maximum object key length (1,024 bytes) is enforced by Fil One and verified in code. The other values in this table (maximum object and part sizes, maximum part count, minimum part size, and metadata size) are the standard AWS S3 limits that Fil One's storage gateway is expected to follow but that we have not independently confirmed. Treat them as guidance rather than guaranteed values, and test against your own workload before hard-coding an exact figure.
For objects larger than 5 GB, use multipart upload.
Regions
| Region | Identifier | Status |
|---|---|---|
| Europe (France) | eu-west-1 | Available (default) |
| US East (Michigan) | us-east-1 | Available |
The region is selected at bucket creation time and cannot be changed afterward. Access keys are also scoped to a single region — see API Keys.
Bucket creation and deletion through the S3 API are available in us-east-1 but not in eu-west-1. See Buckets.
API rate limits
Rate limits are enforced by the underlying storage gateway. Fil One does not impose additional rate limits on top of these. If you encounter SlowDown or ServiceUnavailable responses, back off with exponential retry. Contact support if you are consistently hitting limits at scale.
Naming constraints
Bucket names:
- 3-63 characters
- Lowercase letters, numbers, hyphens (no dots — Fil One's naming rules are stricter than AWS S3 here)
- Must start and end with a letter or number
- Unique within Fil One
Object keys:
- Up to 1,024 bytes (UTF-8)
- Any UTF-8 character is valid, but avoid control characters and characters that require special URL encoding for best compatibility