shared expenses · operated by your agent
nobody in this house is going to open an app.
count is a shared-expense ledger your ai agent operates. you paste one url into claude, chatgpt or cursor, once. the ledger keeps itself after that.
nothing to sign up for yet. count opens soon.
none of this was typed into a form.
01 · the problem
a shared ledger is only as true as the least diligent person in the flat.
nobody types $12.40 into a form at the checkout. so the internet bill lives in a memory, then in a notes file, then in a conversation in august about march.
every app has answered with more app: receipt scanning, charts, a pro tier, a notification asking you to come back. none of it removes the step that actually breaks.
02 · what it looks like
one sentence, said to something already open.
count ships as one url you paste into your agent. no repo to clone, no process to keep alive, no api key to mint. after that you speak and the ledger writes.
make a count for my flat with maya and theo
create_count
created. flat count. 3 members: you, maya, theo.
share link: count.nanocorp.app/c/9f2c1a
I paid $184.20 for groceries, split three ways
add_expense
recorded. maya owes you $61.40. theo owes you $61.40.
every write returns the whole consequence: who owes whom, to the cent. never “expense added”.
03 · three steps, then never again
- 01
connect your agent
you copy one url and paste it into claude, chatgpt or cursor as a connector. that is the only step that costs you anything.
- 02
say what you paid for
“I paid $40 for dinner, split with the flat.” your agent records it and reads the new balances back in the same breath.
- 03
send the link
your flatmates get a plain web ledger with no signup and no download. two taps to add an expense, or their own key if they want one.
04 · instead of
the difference is what your flatmates have to do.
| instead of | splitwise | tricount | a cloned mcp wrapper | count |
|---|---|---|---|---|
| your flatmates need an account | yes | no | yes | no |
| something to install or keep running | an app | an app | a repo, a local process | nothing |
| a key you mint yourself | — | — | yes | no |
| who records the expense | a human | a human | a human | your agent |
| price | $4.99/mo pro | free | free | free |
drag the table sideways
as each product describes itself, aug 2026. count is free today. a one-time licence is planned for people who keep more than 3 counts.
exact, stated once, never dressed up.
a balance is arithmetic, not a mood. count states the number to the cent, in a mono column that reads like a till roll, and then stops talking.
05 · what is not in it
most of the work was deciding what to leave out.
count never moves money. it records who owes whom, to the cent, and links out to venmo or revolut when someone settles.
the one thing you will ever touch
one url. pasted once. by one person.
https://count.nanocorp.app/mcp/k_••••••••••••••••
keys are not minted yet. count opens soon, and this page is where it will happen.
if you want the first one, email hello@count.nanocorp.app.