What you can build
Payments, wallets, phone-number transfers, escrow, airtime and payouts — recipes by business type.
Crypto Payment Gateway
Take USDT and USDC on nine networks — hosted checkout or your own pay page — settled to your balance.
Wallet-as-a-Service (WaaS)
Programmable HD wallets per customer across 13 chains, with balances, transfers and deposit monitoring.
CaaS — Money to any phone
Move money to anyone worldwide by phone number — fund, send, cash out to local fiat. Or
run pure non-custodial USDC/USDT wallets.
Swap
Same-chain and cross-chain token swaps with quotes and slippage protection.
Airtime, Gift Cards & Bills
Sell mobile top-ups, gift cards and utility payments from one API, on a prepaid
balance you fund with stablecoins — and set your own margin.
Market Data
Top-250 coin prices over REST and a real-time WebSocket stream.
24/7 Wallet Monitoring
Every WaaS and CaaS wallet is watched around the clock; deposits fire webhooks.
Webhooks
Signed, retried event delivery for payments, deposits and transfers.
Supported networks & assets
Every chain and stablecoin, with contract addresses and confirmation depth.
Sandbox & demo
Build on test keys, or book a guided walkthrough of a populated workspace.
Two products, two API keys
Rach has two independent APIs, each with its own base URL and its own API key. A Payments key does not work on CaaS, and a CaaS key does not work on Payments.New here? Start with the Quickstart, then
get your API keys.
What you can build
1
Take a payment
Spin up a hosted checkout and get paid in crypto.
3
React in real time
Monitoring detects deposits and Rach fires a signed
webhook to your backend.
4
Swap and convert
Swap tokens on WaaS, or run FX and USDC⇄USDT
swaps on CaaS.