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Show HN: A $1/year credit card keep-alive service

https://keepalive.finance
1•cameronehrlich•2h ago
Hey HN! I built the world's most boring SaaS - it charges your unused credit cards $1/year so banks don't cancel them for inactivity.

The problem: Banks cancel credit cards after 6-24 months of no activity. When they cancel your oldest card, your credit score can drop 50+ points due to reduced credit history length and lower total available credit.

The solution: KeepAlive automatically charges each card $1 annually. That's it. That's the entire product.

Why this exists: I personally wanted it & Claude Code.

Tech: js, supabase, stripe

---

Yes, I know this is absurd, but I've actually been using a version of this for a couple years now and decided to vibe code it up now that anything is possible. ;)

Show HN: App helps you plan without burnout

https://getprostir.app/
1•skreep•38s ago•0 comments

Entr(1) – Run arbitrary commands when files change

https://eradman.com/entrproject/
1•tambourine_man•4m ago•0 comments

Lightning on Earth is sparked by a powerful chain reaction from outer space

https://www.livescience.com/physics-mathematics/lightning-on-earth-is-sparked-by-a-powerful-chain-reaction-from-outer-space-simulations-show
2•Bluestein•4m ago•0 comments

Trump's rewriting of reality on jobs numbers is chilling, but it could backfire

https://www.cnn.com/2025/08/04/politics/trump-job-numbers-federal-reserve-analysis
2•methuselah_in•6m ago•1 comments

The Origin of Cisco Systems

https://www.tcracs.org/tcrwp/1origin-of-cisco/
1•thunderbong•6m ago•0 comments

A Newbie Author's Substack

https://brightmoonandgentlebreeze.substack.com/
2•kitgrace•9m ago•0 comments

A man read 3599 books over 60 years

https://www.openculture.com/2025/08/a-man-read-3599-books-over-60-years-and-now-his-family-has-shared-the-entire-list-online.html
1•SanjayMehta•16m ago•0 comments

AIClient-2-API, a Practical Solution to Reduce LLM Usage Costs

https://github.com/justlovemaki/AIClient-2-API
1•justlikemaki•18m ago•1 comments

From Rust to TypeScript: A New Chapter for Prisma ORM

https://www.prisma.io/blog/from-rust-to-typescript-a-new-chapter-for-prisma-orm
2•KolmogorovComp•19m ago•0 comments

Python AI SDK

https://github.com/python-ai-sdk/sdk
1•lgrammel•21m ago•0 comments

German restaurants are deleting bad reviews [video]

https://www.youtube.com/watch?v=6bM_pXQg7e8
1•dsego•21m ago•0 comments

Promoting a Job Board? Jobboardsearch.com

1•rrmdp•24m ago•0 comments

Mastercard deflects blame for NSFW games being taken down

https://www.pcgamer.com/games/mastercard-deflects-blame-for-nsfw-games-being-taken-down-but-valve-says-payment-processors-specifically-cited-a-mastercard-rule-about-damaging-the-brand/
1•croes•26m ago•0 comments

Ordinal Folding Index: A Computable Metric for Self-Referential Semantics

https://arxiv.org/abs/2508.00151
1•WASDAai•34m ago•0 comments

Laptops, millions of dollars: US woman jailed over North Korea remote-work scam

https://www.theguardian.com/us-news/2025/aug/03/ninety-laptops-millions-of-dollars-us-woman-jailed-for-role-in-north-korea-remote-work-scam
3•mafro•37m ago•1 comments

Humanity May Reach Singularity Within Just 5 Years, Trend Shows

https://www.popularmechanics.com/technology/robots/a65562621/when-the-singularity-will-happen-trend/
1•Bluestein•41m ago•0 comments

Koalas vs. Crows: An Evolutionary Theory of Software

https://ajmoon.com/posts/koalas-vs-crows-an-evolutionary-theory-of-software
2•alex-moon•51m ago•0 comments

Measuring the Impact of AI on Experienced Open-Source Developer Productivity

https://arxiv.org/abs/2507.09089
1•spapas82•51m ago•0 comments

How I Built CSS's light-dark() in TypeScript

https://blog.robhameetman.com/p/how-i-built-csss-light-dark-in-typescript
1•rham•53m ago•0 comments

AI Visibility 101: How Brands Can Build AI Trust

https://lauradecastro.substack.com/p/21-ai-visibility-101-how-brands-can
1•larub_•59m ago•1 comments

Practical Static Analysis for Privacy Bugs

https://blog.brownplt.org/2025/08/03/paralegal.html
2•todsacerdoti•1h ago•0 comments

Splatshop: Efficiently Editing Large Gaussian Splat Models

https://momentsingraphics.de/HPG2025.html
1•ibobev•1h ago•0 comments

Encapsulation Beyond Syntax: Do Access Modifiers Still Matter?

https://www.lihil.cc/blog/encapsulation-beyond-syntax-do-access-modifiers-still-matter/
1•ibobev•1h ago•1 comments

Writing a storage engine for Postgres: an in-memory Table Access Method

https://notes.eatonphil.com/2023-11-01-postgres-table-access-methods.html
1•ibobev•1h ago•0 comments

Benchmark for Embedding Models

https://huggingface.co/spaces/embedding-benchmark/RTEB
1•fzliu•1h ago•0 comments

How to Avoid Personalized Pricing

https://www.pbs.org/newshour/economy/personalized-pricing-has-spread-across-many-industries-heres-how-consumers-can-avoid-it
4•jbrins1•1h ago•0 comments

Ask HN: ADHD and focus during meetings: what works for you?

3•ainiriand•1h ago•0 comments

A Cold War Kit for Surviving a Nuclear Attack

https://spectrum.ieee.org/civil-defense-cold-war
1•schmudde•1h ago•0 comments

Rethinking the Lakehouse

https://altertable.ai/blog/2025-07-30-rethinking-the-lakehouse
2•altertable•1h ago•0 comments

Show HN: FreeImageConvert – Convert HEIC, WebP, PNG Images in the Browser

https://freeimageconvert.site/
1•saidighaleb•1h ago•0 comments