Google · Firebase AI Logic access
Firebase AI Logic App Check: 2 November Enforcement
This page covers Firebase App Check enforcement for Firebase AI Logic. Gemini 2.5 shutdown calendars stay on model availability. Notebook compute stays on Notebook limits. CLI login stays on Gemini CLI login. The coding-tools hub remains Gemini coding tools.
Direct answer
Does my Firebase AI Logic app keep working without App Check?
- 2 November 2026
- Fact Official Firebase AI Logic banner and FAQ: starting 2 November 2026, Firebase App Check enforcement will be required to use Firebase AI Logic.
- Auto-enforce / cannot turn off
- Fact The FAQ warning: on that date App Check is automatically enforced for Firebase AI Logic if it is not already enforced; enforcement cannot be turned off; requests without a valid App Check token are blocked, including app versions that lack a production attestation provider.
- Already-released apps
- Fact App Check and FAQ: versions already released without App Check send no valid token and are unverified. Those requests will be blocked when enforcement is on. Firebase documents a migrate-before-enforce path so already-released apps can add a production attestation provider first.
- 403 semantics
- Fact Documented 403
PERMISSION_DENIEDstrings include: “To access this model, you must enforce Firebase App Check,” and “Firebase AI Logic has been deactivated in this project. To resume using Firebase AI Logic, you must enforce Firebase App Check.” - This app version
- Unknown — account_dependent TraceCheck cannot see whether a named binary already ships a production attestation provider or a debug provider.
- Last verified
- Sep 10, 2026, 8:00 PM UTC
Two 403s, one enforcement date
| Signal | Official meaning | Not this page |
|---|---|---|
| 403 · must enforce App Check | Fact No valid App Check token while calling a commonly abused model, and App Check is not enforced for Firebase AI Logic. | A quota number or a model retirement date. |
| 403 · Firebase AI Logic deactivated | Fact The project is classified inactive for Firebase AI Logic and App Check is not enforced. Resume requires enforcing App Check. | Proof the Gemini API itself retired the model. |
| Released app without App Check | Fact Those versions are blocked at enforcement. Add a production provider, then enforce; use the debug provider only for local development after enforcement. | A TraceCheck verdict that a specific store build is already attested. |
What this page does not do
- It does not own Gemini 2.5 Developer API 16 October or Agent Platform 20 October shutdown dates. Those stay on model availability.
- It does not treat App Check as optional after 2 November 2026. Official text says required, auto-enforced, and not turn-off-able.
- It does not document attestation setup steps beyond the official applicability facts above.
TraceCheck maintainer: review when Firebase changes the 2 November 2026 App Check requirement, released-app applicability, or 403 PERMISSION_DENIED strings. This is not a Gemini 2.5 shutdown page.