dolaramp

stablecoin api.

accept, hold and pay out USDT, USDC and PYUSD on solana, tron, gram(ton), base and arbitrum with one REST API. no nodes, no indexers, no gas tokens to buy. sign up in the panel and your key works on the free plan right away.

open the panel → api docs → integration flows →

sign up in the panel with google, github or an email code. your api key is there, on the free plan.

// what the api does
  1. hotwallets: one per network, created with a wallet_secret that is shown to you once.
  2. child addresses: one per customer, order or invoice. tag them with your own external_ref.
  3. deposits: a signed webhook (deposit.confirmed) the moment money lands on a child.
  4. sweep: move child balances into your hotwallet in batch, gasless (sweep.confirmed).
  5. withdraw: pay out to any address (withdraw.confirmed / withdraw.failed). a withdrawal larger than the balance is refused, never sent partially unless you ask for it.
  6. bridge: move USDC between solana, base and arbitrum through Circle CCTP, up to $10m per order (bridge.confirmed).
// who builds on it
you runyou use
an online storea child address per order, deposit webhook marks it paid
a payment gatewaychildren per merchant, sweep, payouts to each merchant
an exchange or brokera permanent deposit address per user, withdrawals on request
payroll or mass payoutsone funded hotwallet, many withdrawals
a crypto card programtop-up addresses per cardholder, settlement to your hotwallet

each profile is drawn node by node, with the real calls and webhooks, in the integration flows.

// networks & stablecoins
networkstablecoinsgasless
solanaUSDT · USDC · PYUSDyes
tronUSDTyes
baseUSDCyes
arbitrumUSDC · USDT (USD₮0)yes
gram (ton)USDTyes

only the issuers' official contracts are read. the full list, per network, is on contracts.

// pricing
freeproenterprise
monthly$0subscription, in the panelnegotiated
fee per operationfrom $0.10from $0.05negotiated
USDT on TRON, all-in$1.60$1.55negotiated
watched addresses1,00050,000custom
bridge$2 + 0.3%$2 + 0.2%negotiated

every network, every fee: pricing.

bridge minimum amount $10 per operation; Circle's own fee is passed through without markup. GET /v1/quote and GET /v1/bridge/quote show the exact fee before anything moves.

// non-custodial

your hotwallet keys are sealed in an envelope that opens only with your wallet_secret. we sponsor the gas and take our fee inside the same operation; we do not hold your balance. more on security.

start building.

create your account in the panel, grab the api key and follow the reference.

open the panel → api docs →

questions or volume pricing: hello@dolaramp.com