Sales tax,
settled.
One request returns the exact combined rate for any US ZIP or jurisdiction — state, county, city, and special-district, summed and sourced.
Five endpoints. The whole tax problem.
Each does one job and returns plain JSON. Authenticate with an X-API-Key header — that's the entire integration.
A total is never just a number.
Every rate decomposes into the jurisdictions that levy it. We return each layer, so your ledger reconciles to the cent and your filings reconcile to the line.
Stacked, sourced, summed.
Take a checkout in Dallas. Four jurisdictions stack into one charge — and a special transit district is part of it, not an afterthought.
6.25 + 1.94 + 1.00 + 1.00 = 8.19%
No rounded statewide averages. No “close enough.” The components are the product.
Flat monthly pricing. No per-transaction fees.
Every plan includes the entire API — all five endpoints and full jurisdiction breakdowns. You only choose how many requests you make per day.
The same lookups cost $0.05 each on Stripe Tax and $0.25+ on Avalara — here there's no per-transaction fee, no monthly minimum, and no implementation fee.
Wire up sales tax this afternoon.
One header, one request, every US jurisdiction. Grab a key and resolve your first rate in a single curl.