Isseven

philipreasa 84 points 45 comments April 05, 2026
isseven.app · View on Hacker News

Discussion Highlights (20 comments)

forthwall

Needs an Agent skill! Gotta be more modern :)

system2

I like how you spent $10 for the domain for this. :)

nvader

Bug report: I entered 3 + 4 and did not get a kinda or true. This app is ngmi

grant0417

Vulnerable to a distillation attack, unfortunately not much of a moat.

Quot

7.0000000000000001 evaluates to true.

nwhnwh

I will vibe code my way out of poverty:

akoboldfrying

Enterprise looks promising, but before I take this to upper management: How many sevens of uptime are we talking?

charcircuit

This SaaS actually will be replaced with an in house vibecoded solution.

s20n

Does this have an MCP server?

hyperhello

Eh, more better than Prolog.

bombcar

I can use this as a random number generator; at least it's not nine.

cyode

Heads up OP: I’m trying to get a pro license but your checkout flow is borked. Probably should fix ASAP before missing out on HN front page traffic.

dustimpact

Apparently “seven” is only kinda seven. I would argue that seven is seven!

evanb

Bug report: I tried 6.999999̅ and got false. So there's some nonstandard model of the reals being leveraged here.

Rendello

Doesn't work for the other 125 encoded characters that are numerically seven, as defined in the Unicode Character Database: https://www.unicode.org/Public/17.0.0/ucd/extracted/DerivedN... (Viewable / copy-able version: https://pastebin.com/fNRv3wD6 )

CobrastanJorji

That documentation is woefully inadequate. It provides only one example request, and then it shows two separate responses, and it doesn't make clear which one is associated with the request. It doesn't even describe the individual request fields, nor does it provide any response codes or a list of error codes/messages. How am I supposed to develop with this? I do, however, appreciate the seven figure SLA. My service requires at least five nines of uptime, and seven figures is definitely more than five.

OsrsNeedsf2P

I misread this as "is even" and was shocked that 46 returned false

himata4113

complaint: someone entered "seven" and it crashed my entire infrastructure because the output returned a non standard 'kinda'.

layer8

It hallucinates 6.9999999999999996 to be seven.

iamgopal

No other numbers were harmed in the making of this API. But their feeling hurts, especially primes.

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