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Auth Shield Proxy for BaaS Apps
Build a lightweight edge-layer service that enforces sign-in and sign-up rate limits independently of the backend platform. It gives teams a fast safety net before launch, plus dashboards and alerts that prove protections are working.
Why this matters
You are getting ready to launch, and you assume your authentication limits will stop repeated login attempts because you configured them in the dashboard. Then you test and discover the system allows far more requests than expected. Now you are stuck in a bad spot: trust a control that appears inconsistent, delay launch, or rush a custom protection layer into production. Existing built-in settings are supposed to solve this, but when they do not behave predictably, you need a software layer you can deploy quickly that actually enforces rules and gives you confidence your app is protected.
- · Built for Small SaaS teams, indie developers, and startup engineering teams using hosted authentication who need stronger protection without replacing their auth stack..
- · Most likely monetization: SaaS subscription.
The Pain · Narrative
You are getting ready to launch, and you assume your authentication limits will stop repeated login attempts because you configured them in the dashboard. Then you test and discover the system allows far more requests than expected. Now you are stuck in a bad spot: trust a control that appears inconsistent, delay launch, or rush a custom protection layer into production. Existing built-in settings are supposed to solve this, but when they do not behave predictably, you need a software layer you can deploy quickly that actually enforces rules and gives you confidence your app is protected.
Score Breakdown
Market Signal
Go-to-Market
Seed-stage product teams using hosted auth who are shipping customer-facing apps in the next 60 days and lack dedicated security engineering.
~30K-80K active teams globally
SEO long-tail
$49/month
10 paying teams protecting production auth flows within 30 days from launch-page traffic and direct onboarding calls
MVP Scope · 1–2 weeks
- Build a simple reverse-proxy service that forwards auth requests and applies per-IP counters
- Add configurable thresholds for signup and signin endpoints
- Create a minimal dashboard showing blocked versus allowed requests
- Implement project API keys and basic team authentication
- Write a provider-specific setup guide for one hosted auth platform
- Add per-identifier limits using email or username keys alongside IP-based rules
- Implement Slack and email alerts for threshold breaches
- Ship a dry-run mode that logs events without blocking
- Add a replay-safe test harness that generates controlled auth attempts
- Launch a self-serve onboarding flow with copy-paste proxy configuration
Differentiation
Why This Might Fail
Self-rebuttal — the most important trust signal
- 1Many teams may prefer a few lines of custom middleware over paying for a standalone security layer, especially if they only need basic per-IP throttling.
- 2Authentication traffic is latency-sensitive, so any reliability issue or added complexity can kill adoption quickly.
- 3If major backend platforms improve native enforcement and observability, the product may look like a temporary patch instead of a lasting category.
Evidence Summary
How AI synthesized this insight — no verbatim quotes
The discussion shows repeated confirmation that configured auth limits are not matching observed behavior. Multiple participants report seeing the same gap, and at least one team says they may have to build an internal workaround before release because the issue feels security-critical. That combination of reproducible failure, urgency, and launch risk supports demand for an external enforcement layer.
Action Plan
Validate this opportunity before writing code
Recommended Next Step
Build
Strong demand signals detected. Real pain, real willingness to pay — start building an MVP.
Landing Page Copy Kit
Ready-to-paste copy based on real Reddit community language — no editing required
Headline
Auth Shield Proxy for BaaS Apps
Sub-headline
Build a lightweight edge-layer service that enforces sign-in and sign-up rate limits independently of the backend platform. It gives teams a fast safety net before launch, plus dashboards and alerts that prove protections are working.
Who It's For
For Small SaaS teams, indie developers, and startup engineering teams using hosted authentication who need stronger protection without replacing their auth stack.
Feature List
✓ Drop-in proxy or edge middleware for auth endpoints ✓ Per-IP, per-email, and per-device rate-limit rules ✓ Real-time blocking logs and alerting ✓ Provider-specific setup guides ✓ Safe test mode to simulate abuse traffic without harming production
Where to Validate
Share your landing page in r/GitHub · supabase/supabase — that's exactly where these pain points were discovered.
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