IdeaWell

Project ideas from Hacker News discussions.

€54k spike in 13h from unrestricted Firebase browser key accessing Gemini APIs

Original Article

Hacker News Discussion

📝 Discussion Summary (Click to expand)

Key Themes from theDiscussion

# Theme Illustrative Quote
1 No native billing caps and slow alerts “there is no way to cap your billing on gcp.” – lukewarm707
“We had a budget alert (€80) and a cost anomaly alert, both of which triggered with a delay of a few hours. By the time we reacted, costs were already around €28,000.” – JohnScolaro
2 API keys are treated as public identifiers, not secrets “API keys for Firebase services are not secret.” – embedding‑shape
3 Prepaid or hard spend‑limit models are preferred “Prepaid only is a fantastic idea, especially for dumb‑ass startups.” – trick‑or‑treat
4 Providers prioritize profit over client protection “This is a ‘feature’ for Google, not a bug.” – onemoresoop

Summary:
The conversation centers on disappointment with Google’s billing safeguards, the security implications of “public” API keys, a strong call for prepaid or hard spend limits, and the perception that cloud vendors prioritize revenue over user safety. The quoted statements directly capture each of these dominant perspectives.

🚀 Project Ideas

Generating project ideas…

SpendLock

Summary

-Provides real‑time billing caps and optional prepaid spend limits for GCP projects.
- Eliminates surprise runaway costs by automatically throttling or shutting down resources.

Details

Key Value
Target Audience GCP developers, startups, and any user exposed to Gemini/LLM APIs
Core Feature Continuous spend monitoring + instant API‑level throttling or project disabling
Tech Stack Google Cloud Functions (Node.js), Pub/Sub, Cloud Monitoring, Cloud Scheduler
Difficulty Medium
Monetization Revenue-ready: Subscription tier $15/mo + $0.01 per capped GB processed

Notes

  • HN commenters repeatedly lamented delayed alerts and lack of hard caps – this directly addresses that pain.
  • Could integrate with existing billing alerts to offer a “kill‑switch” that users can enable with one click.

APIKeyGuard

Summary

  • Scans public repositories (GitHub, GitLab) for leaked API keys and automatically revokes or rotates them.
  • Generates scoped, short‑lived replacement keys tied to specific referrers or IPs.

Details

Key Value
Target Audience Open‑source maintainers, CI/CD pipelines, security teams
Core Feature Real‑time leak detection + auto‑remediation (revoke/rotate keys)
Tech Stack Serverless Python Cloud Run, GitHub API, Google Cloud Secret Manager, GitHub Actions
Difficulty High
Monetization Revenue-ready: Pay‑as‑you‑go $0.02 per scan + $5/mo per protected repo

Notes

  • Community worries about accidental exposure of Gemini keys – this tool would prevent that exposure.
  • Could be promoted as a free “security hygiene” service for public projects, with premium features for enterprises.

GeminiBudgeter

Summary

  • A lightweight CLI/library that enforces per‑API‑key quotas and spend caps for Gemini APIs.
  • Throttles requests automatically once a user‑defined monetary threshold is reached.

Details

Key Value
Target Audience Indie developers, hobbyists, and small teams using Gemini directly
Core Feature Client‑side request throttling + spend‑alert API calls
Tech Stack Python package, Google Cloud Monitoring API, Cloud Functions for enforcement
Difficulty Low
Monetization Hobby

Notes

  • Many HN users asked “why isn’t this built‑in?” – providing an easy‑to‑install solution satisfies that demand.
  • Could be open‑sourced and later monetized via hosted dashboard or premium quota tiers.

FvckBudget.io

Summary

  • No‑code dashboard that connects to any cloud billing account, sets custom hard limits, and triggers a one‑click kill‑switch on breach.
  • Supports prepaid credit top‑ups and sends Slack/Discord webhook notifications.

Details

Key Value
Target Audience Solo founders, bootstrapped SaaS, and small dev teams
Core Feature Real‑time spend monitoring, auto‑throttle via Cloud Functions, prepaid credit management
Tech Stack React frontend, Firebase Auth, Cloud Functions (Node.js), Cloud Scheduler
Difficulty Medium
Monetization Revenue-ready: Free tier (up to $100/mo caps); Pro $29/mo for unlimited caps

Notes

  • Directly answers the desire for “prepaid only” or “hard cap” features that HN commenters felt were missing.
  • Could foster community discussion around best practices for budgeting on cloud platforms.

Read Later