Four rails. One deposit address. One balance.

Give every customer a single permanent address that accepts USDT and USDC on Polygon or BNB Smart Chain, and manage what lands there — payouts, settlements, fees — through one API.

Start in the sandboxSee how the rails converge

Sandbox integration available

One deposit addressenvironment: sandbox

USDC

Polygon

USDT

Polygon

USDC

BNB Smart Chain

USDT

BNB Smart Chain

A

Your Kepler Cash balance

Every rail credits the same address, matched to your customerRef

you choose what happens next
B

Payout or settlement

Pay a customer or settle to an approved destination

More than wallet infrastructure.

A wallet can hold and send tokens. Kepler Cash gives each of your customers one address that works the same way no matter which rail they pay on, then helps you know who paid, what is available, and where it goes next.

One address, four rails

Issue a single permanent address per customer that accepts USDT or USDC on Polygon or BNB Smart Chain, natively, with no bridging.

Know what is available

See received funds, fees, and balances in exact decimal amounts without maintaining your own blockchain accounting.

Move funds confidently

Create payouts and settlements through one API, with signed webhooks keeping your system up to date.

Four settlement rails, one address.

USDC · PolygonUSDT · PolygonUSDC · BNB Smart ChainUSDT · BNB Smart Chain
Read the merchant API

Build against sandbox first.

Use test credentials to build your complete payment flow, including deposits, balances, fees, payouts, settlements, and webhooks, without creating live addresses or moving real funds.

  1. 01Get your sandbox API key.
  2. 02Create a payment address for a customer or order.
  3. 03Receive and verify signed payment updates.
  4. 04Request live access when your integration is ready.

Ready to integrate Kepler Cash?

Start with the sandbox guide. Integration support details will be published here when available.

Existing merchant login