DOCUMENTATION
The API isthe product.

Everything the board computes, you can compute over REST and webhooks — with a sandbox full of fake money.

REST + WEBHOOKSEVERY OBJECT, EVERY EVENT
SDKSTYPESCRIPT · PYTHON
SANDBOXFULL LEDGER, FAKE MONEY
RATE LIMITSGENEROUS · PUBLISHED

The full reference ships with your sandbox keys — this template links it here. Wire your docs platform or keep the teaser.

$ curl https://api.basis.fin/v1/ledger \
-H "Authorization: Bearer sk_live_····"
{
"cash_position": 4982140.00,
"unreconciled": 0.00,
"as_of": "now"
}
200 OK · 41MS
ALL SYSTEMS OPERATIONAL

Treasury & spend intelligence for companies that take their numbers seriously.

THE CLOSE — ONE EMAIL, MONTHLY
NEW YORK
09:42:07
basis
© 2026 BASIS FINANCIAL, INC.SOC 2 TYPE II · PCI DSS · GDPR · AES-256

Create a free website with Framer, the website builder loved by startups, designers and agencies.