General

Base URL

https://api.thinkout.io/v1

All requests must use HTTPS. Responses are JSON with snake_case keys.

Create an API key

In ThinkOut open Settings and create a key for the workspace you want to read. The key is shown once. See Authentication.

List your accounts

curl https://api.thinkout.io/v1/accounts \
  -H "Authorization: Bearer $THINKOUT_API_KEY"

Page through transactions

curl "https://api.thinkout.io/v1/transactions?from=2026-01-01&to=2026-03-31&limit=100" \
  -H "Authorization: Bearer $THINKOUT_API_KEY"

Follow next_cursor until has_more is false. See Pagination.

Bank connections, their status, and when each one last synced.

Manual and bank-connected accounts with their current balance in the account currency.

Every booked and pending movement on every account, as the account recorded it.

Inflows, outflows and balances per period, computed the way the cash flow screen computes them.

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