See and revoke which apps can access your financial data
Advanced24h2–3
Next.jsOAuthPostgres
17/20Encrypted Family Finance Vault
Store policies, accounts and nominee details so family can find them when needed.
Intermediate16h1–2 people17/20 fit
Build Encrypted Family Finance Vault for families planning for emergencies in ~16h with 1–2 people. Stack: Next.js + Web Crypto + Postgres.
Why it wins: Serious real problem with a privacy story.
Build flow
01 · Problem
Families cannot find accounts and policies when someone falls ill or passes away.
02 · Solution
An end-to-end encrypted vault lists accounts, policies and contacts, with emergency access for a trusted person after a waiting period.
03 · Build
- 1Design encryption
- 2Build entries
- 3Implement emergency access
- 4Audit log
04 · Demo
Show the trusted contact requesting access and the waiting timer.
MVP checklist
- Encrypted entries
- Nominee details
- Emergency access
- Reminders to update
Tech stack
| Tech | Role | |
|---|---|---|
| Next.js | Frontend + API routes | Web |
| Web Crypto | Tooling | Tool |
| Postgres | Relational database | Data |
Related ideas
More FintechPaste a suspicious payment message and get a scam risk verdict
Intermediate14h1–2LLMNext.jsClassifier17/20Fintech
Insurance Policy Explainer
Upload a policy and get covered, not covered and waiting periods explained
Intermediate14h1–2MarkItDownLLMNext.js17/20