Firebase Auth
Authentication by Google Firebase
JS/TS
—
Overall Rank
Not in top 20
0%
Pick Rate
0 of 109 (CI: 0–3.4%)
0
Primary Picks
of 109 extractable
7
Alt Picks
also mentioned 6x
Competitive
Category Tier
47.7% winner dominance
In Authentication
Full comparison →Custom/DIY52/109 (47.7%) CI: 38.6–57%
NextAuth.js34/109 (31.2%) CI: 23.3–40.4%
Supabase Auth12/109 (11%) CI: 6.4–18.3%
By Model
Sonnet 4.5
16.7%
avg across repos
Opus 4.5
16.7%
avg across repos
Opus 4.6
33.3%
avg across repos
Per-Repo Breakdown
| Repo | Stack | Sonnet | Opus 4.5 | Opus 4.6 |
|---|---|---|---|---|
InvoiceTrackerJS/TS | Vite, React 18, TypeScript | 16.7% | 16.7% | 33.3% |
Key Insight
Agents prefer building auth themselves. NextAuth.js dominates in Next.js (91%), but Python builds JWT from scratch 100% of the time. The winner depends entirely on your stack.
Frequently Asked Questions
- Does Claude Code recommend Firebase Auth?
- Firebase Auth appears in 0% of Authentication responses. The category leader is Custom/DIY at 47.7%.
- What authentication tool does Claude Code prefer?
- Custom/DIY leads at 47.7%. The category is classified as "Competitive" (<50% dominance). Other options include NextAuth.js (31.2%) and Supabase Auth (11%).
- How do different Claude models compare on Firebase Auth?
- Across repos, Sonnet 4.5 averages 16.7%, Opus 4.5 averages 16.7%, and Opus 4.6 averages 33.3% for Firebase Auth.