korb
Consumer and social
grocery shopping cli
SHOW HN2026
How HN took it
12 positive, 16 neutral or asking, 1 mixed, 4 critical, out of 33 comments about the project. Thread score +0.30.
Idea: 9 for, 2 againstExecution: 1 for, 2 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Useful for personal grocery shopping; agentic groceries idea
From 3 comments
I hope REWE is seeing this and offers an official MCP server. In the end we pay real money there. :D I wrote a skill some time ago to support me with "agentic groceries" on my…
aweiher on HNSerious good use of an AI. Just let them do the grey area (like repeated purchase). I'd even let an algo pick better groceries for me. Cools tuff!
ramon156 on HNLove this! Super cool.
tietjens on HN
Impressive Haskell and Lean formal verification
From 2 comments
``` > The suggestion engine (korb suggestion threshold) is re-implemented in Lean 4 with five mathematically proven properties: suggestions have positive frequency, are sorted…
vessenes on HNReally cool to see things still being built in Haskell! How do you find using it compared to some of the newer languages that have more modern tooling? Did you implement your own…
sigr_ on HN
Objections
Reverse-engineered API may break or be locked down
From 3 comments
Cool project, but have mixed feelings about publishing ever easier ways to access this API. They've locked down the API a while ago for a reason. Also there already exists this…
Bewelge on HN> Finally the best side projects are the ones you actually use and this one will be used for all my future grocery shopping. Until it breaks in a few weeks.
rvz on HNWell you don't control the API so it will still break.
rvz on HN
Could enable excessive orders like 300 avocados
From 1 comment
Really cool, but this is also how you end with 300 avocados and 500 L of detergent.
son3tt on HN
Requests
Compare basket prices across markets
From 2 comments
Cool project, but have mixed feelings about publishing ever easier ways to access this API. They've locked down the API a while ago for a reason. Also there already exists this…
Bewelge on HNAn aggregator like this that could surface the same good for the cheapest price all inclusive of delivery would be something I would pay for!
gigatexal on HN
Sort items by unit price
From 2 comments
>I do have a suggestion for your app though: Have it compare your basket of goods across different markets in your region to show you the cheapest option. I'd settle for just…
duskdozer on HNthere is this "400g (1 kg = 3,48 €)" - would be pretty easy to sort results by that I'd guess, good idea!
wazHFsRy on HN
Official REWE MCP server
From 2 comments
Please pitch internally for an official Rewe MCP server. This is the future of doing groceries. Let us login with our credentials and let us do the search/filling the cart with…
aweiher on HNI hope REWE is seeing this and offers an official MCP server. In the end we pay real money there. :D I wrote a skill some time ago to support me with "agentic groceries" on my…
aweiher on HN
Questions
How stable is the API in practice
From 1 comment
been ordering from REWE for years =) always wished the app was less annoying. all my programm skills - for what? lol. probs for reverse engineering the mTLS part, most people…
silbercue on HN
Does Austrian BILLA use the same API
From 1 comment
Nice! Do you know if the Austrian billa (REWE's subsidiary) is using the same api?
wklm on HN
Alternatives named
rewerse-engineering existing REWE reverse-engineered project
From 1 comment
Cool project, but have mixed feelings about publishing ever easier ways to access this API. They've locked down the API a while ago for a reason. Also there already exists this…
Bewelge on HN
asdabot for Asda UK
From 1 comment
That's funny, I've just built the same thing for Asda in the UK https://github.com/markDunne/asdabot It can search for items, add them to the basket, picks a delivery slot and…
splike on HN
heissepreise price comparison for Austrian retailers
From 1 comment
There's this one which got some publicity, doesn't seem to be updated any more but it worked for all these retailers listed and is open source:…
dewey on HN