splitwise mcp · hosted
the wrapper works. it just moved the chore to your laptop.
splitwise has no official mcp server, so the ones you found are repos you clone, run locally and hand your own api key. count is the ledger itself, hosted, with an mcp endpoint as the front door.
one url pasted into claude, chatgpt or cursor. no repo, no local process, no api key to mint.
01 · setup, counted
five things to keep working, or one thing to paste.
this is the honest comparison of what you do before the first expense is recorded, taken from the wrappers' own readmes.
- 01register an app at secure.splitwise.com/apps to get a consumer key, or mint an api key
- 02clone the repo and install its python dependencies
- 03write the absolute path to the server into your client config as a local command
- 04keep that process alive on the laptop you record expenses from
- 05get every flatmate onto splitwise, because the ledger lives there
- 01paste one url into your agent as a custom connector
the wrapper step that never ends is the fourth one. an mcp server on your laptop is offline whenever your laptop is.
02 · the difference
a wrapper gives your agent an account. count gives it a ledger.
a wrapper is a translator in front of splitwise: the data is splitwise's, the limits are splitwise's, and everyone in the flat still needs to be on splitwise. count has no upstream.
| the difference | a cloned wrapper | count |
|---|---|---|
| hosted for you | no, you run it | yes |
| something to clone | a repo | nothing |
| something kept alive | a local process | nothing |
| a key you mint yourself | splitwise api key or oauth | no |
| your flatmates need an account | yes, on splitwise | no |
| whose ledger it is | splitwise | yours |
| expenses a day, free | 4 on splitwise free | unlimited |
| price | free wrapper, paid pro tier | free |
drag the table sideways
03 · what we checked
the facts this page rests on.
stated plainly so you can check them yourself before you believe a comparison page written by the company that wins it.
where a wrapper is the right answer
if you already have years of history in splitwise and a group that lives there, a wrapper is the correct tool and you should use one. count is for the ledger you have not started yet, or the one that died in a notes file because two people never installed anything.
04 · the aha
every write returns the whole consequence.
count's tools never answer “expense added”. they answer with every member's new balance, to the cent, in the same message, so the number arrives in a sentence you never typed.
I paid $184.20 for groceries, split three ways
add_expense
recorded. maya owes you $61.40. theo owes you $61.40.
05 · questions
is count hosted
yes. count runs at count.nanocorp.app and the endpoint is /mcp. there is no repo, no python, no process on your machine, and nothing to redeploy when your laptop restarts.
does count need a splitwise account
no. count is the ledger, not a client for someone else's. nobody in your flat needs a splitwise account, or a count account.
what does it expose to my agent
six tools: create_count, add_expense, list_counts, get_balances, settle, add_member. each one is documented with a real response in the docs.
which clients work
any client that accepts a remote mcp url: claude, chatgpt and cursor have exact click paths on the key page. the endpoint speaks streamable http and answers a plain curl, so you can prove it is live before you paste it.
how do my flatmates see the ledger
every count has a share link. it opens a plain web ledger with no signup and no download, and they can add an expense there in two fields. if one of them wants their own agent connected, the page offers them a key.
is it really free
free today, with no card and no signup. your agent does the language work, so count is a ledger and costs us almost nothing to run. a one-time licence is planned for people who keep more than 3 counts; the flatshare stays free.
the one thing you will ever touch
one url. pasted once. by one person.
https://count.nanocorp.app/mcp/k_••••••••••••••••
get your keyfree. no form and no account: the next page mints your key and shows you exactly where to paste it.