Cloud Storage for Firebase (Spark/Blaze)

firebase.google.com/pricingPaaSstorage/cloud-storage-for-firebaseJSON compare report an error provider JSON

Free allowance: 5 GB stored free, but only on the Blaze pay-as-you-go plan; Spark project buckets return 402/403.
Verdict: fails: quotathe free allowance is too small to matter
Cost: free tier
Identity: cardcard required, no phone
Binding limit: per-ip-shaping1 GB/day
Evidence: reported2 sources; a third party said so
Freshness: stale on 2026-11-05checked 2026-10-21 (inherited); stale on 2026-11-05

Free tier	5 GB stored free, but only on the Blaze pay-as-you-go plan; Spark project buckets return 402/403. unit GB; metered on stored-bytes
Price	none stated
Limits	per-ip-shaping (binding) 1 GB/day source 5 GB stored; 20K upload ops/day (appspot) / 5K/month (firebasestorage.app); 1 GB/day or 100 GB/month egress; bucket creation post-Sept-2024 uses PROJECT_ID.firebasestorage.app naming.
Binding	per-ip-shaping one stream is shaped, and a user's throughput is the shaped rate times the number of streams
Identity	card not published
Egress	1 GB/day free for legacy .appspot.com buckets, then $0.12/GB; 100 GB/month for .firebasestorage.app buckets. Metered beyond that. free allowance: 100 GB per month
Per-object cap	not stated
Retention	not stated
Interface	rest, rclone rest
Tooling	Firebase Storage SDK / GCS JSON+XML API (rclone 'gs'/'gcs'); buckets are ordinary GCS buckets so rclone works.
Composes with	5 GB x N Firebase projects — each project needs a billing account on Blaze, which defeats the purpose since Blaze is a metered surface.
Reliability	Requires attaching a credit card (Blaze). No free path at all since the Sept 2024 change — this is the clearest 'free that is not free' in the Google stack.
Parsed numbers	per-ip-shaping 1 GB / day

Evidence 2

date	source	what it proved
2026-10-21	firebase.google.com/pricing	'Storage \| * Not applicable * \| No-cost up to 5 GB Then $0.10/GB'; 'GB downloaded \| No-cost up to 1 GB/day Then $0.12/GB'
2026-10-21	firebase.google.com/docs/storage/faqs-storage-changes-announ	'If your Firebase project is on the Spark pricing plan, you won't have access to any Cloud Storage buckets … your API calls to buckets will return 402 or 403 errors'

More fields 1

{
 "dead_end": {
  "failure_class": "quota",
  "why": "5 GB stored free, but only on the Blaze pay-as-you-go plan; Spark project buckets return 402/403.",
  "retry_when": null,
  "first_recorded": "2026-10-21"
 }
}

Unknown values 5

$.identity_cost.detail boilerplate
$.per_object_cap.notes the field may be stated in a source that was not read
$.per_object_cap.stated the field may be stated in a source that was not read
$.retention.notes the field may be stated in a source that was not read
$.retention.stated the field may be stated in a source that was not read