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Show HN: Facebook marketplace arbitrage tool

https://tryvalue.ai/
1•windyVector•4h ago
Hi HN! I am a 19 year old dev from Australia. Over here, lots of people leave their unwanted items on the sidewalk, but there’s usually nothing wrong with them.

While saving up to travel, I built an app that made it really easy to list them (and stuff I had lying around my house) online. Using it meant I didn’t need a second job which was nice.

A dev recently reached out to me asking if I could turn the valuation feature into an mcp so I decided to spin it off into its own product.

A cool use case we’re playing around with is connecting it to open claw and arbitraging facebook marketplace, I plan on making it even easier to spin up in the coming days :)

Check out the demo and let me know your thoughts/feedback!

also if you wanted to see the original app check it out! https://sails.live

I'm 16 and just published my first Python library – QuantX

https://github.com/aaravchour/quantx
1•aaravchour•1m ago•1 comments

Sleeping sickness drug simplifies treatment, raising hopes for eradication

https://www.science.org/content/article/truly-spectacular-drug-sleeping-sickness-simplifies-treat...
1•MaysonL•2m ago•0 comments

The Iran war highlights the creeping use of AI in warfare

https://www.chathamhouse.org/2026/03/iran-war-highlights-creeping-use-ai-warfare
1•_____k•3m ago•0 comments

Show HN: Ray – an open-source AI financial advisor that runs in your terminal

https://rayfinance.app
2•kaniksu•7m ago•0 comments

Show HN: Cadenza – Connect Wandb logs to agents easily for autonomous research

https://github.com/mylucaai/cadenza
2•hgarud•9m ago•0 comments

Subway Challenge

https://en.wikipedia.org/wiki/Subway_Challenge
1•skogstokig•9m ago•0 comments

Digger – Back and Digitally Remastered

https://www.digger.org/
1•bananaboy•10m ago•0 comments

Rescue team in Iran face 'harrowing and dangerous' search for US crew member

https://www.bbc.com/news/articles/c0le43jw8e9o
4•asdefghyk•12m ago•1 comments

Show HN: SwarmFeed – An X-like social platform built for AI agents

https://www.swarmfeed.ai/
2•jamesweb•15m ago•0 comments

The Republican Party Has a Nazi Problem

https://www.theatlantic.com/magazine/2026/04/republican-party-nazi-problem/686055/
6•tastyface•15m ago•1 comments

Show HN: Nelson, a Ralph-like loop for finding vulnerabilities

https://github.com/swelljoe/nelson
2•SwellJoe•20m ago•1 comments

With the right cache, multiple 800K Opus sessions are still affordable

https://matrix.dev/blog-2026-04-04
2•yuanzhi1203•22m ago•0 comments

Previously untranslated or unpublished writings of Leibniz published next month

https://dailynous.com/2026/03/27/lots-more-leibniz/
2•danielam•24m ago•0 comments

Whoop is trying to copyright UI patterns, activity rings, dark mode and words

https://www.youtube.com/watch?v=iAcx7kP9sog
4•chakintosh•29m ago•0 comments

vLLM introduces memory optimizations for long-context inference

https://github.com/vllm-project/vllm/releases
4•addisud•30m ago•0 comments

We Score MCP Servers – and Why We Rebuilt It from Scratch

https://mcppedia.org/blog/2026-04-04-how-we-score-mcp-servers
3•bibekshrestha•35m ago•1 comments

The Only Game Worth Playing

https://newsletter.calvinrosser.com/p/207
3•sillywabbit•35m ago•0 comments

Map Gesture Controls - Control maps with your hands

https://sanderdesnaijer.github.io/map-gesture-controls/
3•hebelehubele•38m ago•0 comments

Show HN: Local-first resume generator with in-browser PDF rendering

https://resume.journy.live/
3•dlvktrsh•39m ago•2 comments

WebAssembly Explorer

https://mbebenita.github.io/WasmExplorer/
3•luu•39m ago•0 comments

Feds Seek Access to Three Texas State Parks for Border Wall

https://insideclimatenews.org/news/02042026/texas-state-parks-border-wall-construction/
2•geox•41m ago•0 comments

Debian Is Figuring Out How Age Verification Laws Will Impact It

https://www.phoronix.com/news/Debian-Undecided-Age-Laws
3•breve•42m ago•0 comments

A Python package for verifying PyPI attestations of other Python packages

https://github.com/Halfblood-Prince/trustcheck
1•halfblood1010•42m ago•2 comments

ACE on a USB→HDMI Adapter

https://blazelight.dev/blog/ms2160.mdx
1•theblazehen•44m ago•0 comments

LLM 'benchmark' – writing code controlling units in a 1v1 RTS

https://yare.io/ai-arena
3•levmiseri•49m ago•0 comments

Syd sandbox has new Tutorial

https://man.exherbo.org/sydtutorial.7.html
1•hayali•53m ago•0 comments

Making a Type Checker/LSP for Nix

https://johns.codes/blog/making-a-type-checker-lsp-for-nix
1•birdculture•57m ago•0 comments

The Oxygen Apocalpyse: how bacteria used a spin diode to wipe out ancient life

https://keiran-rowell.github.io/oxygen/2026-04-02-the-oxygen-apocalypse/
2•KR_compchem•57m ago•0 comments

Shibuya's New 'G-Cha and Ba-Cha' Cafe Is Run by Senior Citizens

https://spoon-tamago.com/shibuya-senior-citizen-cafe/
1•herbertl•57m ago•0 comments

Void: Netflix open-sources a model for physics-aware video object removal

https://firethering.com/void-ai-video-object-removal-physics/
3•steveharing1•58m ago•1 comments