01
One gateway instead of a wallet per coin
Invoices, payment links, checkout and payouts share one balance and one API.
Works with
- TRON
- Ethereum
- TON
- Bitcoin
- Solana
- BNB Chain
- Polygon
- Arbitrum
- Base
- Litecoin
- Dogecoin
/ API, payment links or hosted checkout /
Accept crypto, settle in USDT, pay out in bulk
- Coins
- 10
- Networks
- 11
- Fee per payment
- 0.5%
- Crediting on TRON
- 1 min
- Settlement
- 24/7
Why merchants process with Sendcity
02
Any coin in, USDT out
Customers pay in the coin they hold. You get USDT at the rate fixed when the invoice was created.
03
Built for high volume
Thousands of invoices a day, bulk payouts from a CSV file, and webhooks that retry until your server answers.
04
API first, or no code at all
Start with payment links and the Telegram bot, or build on the API. The balance underneath is the same.
Products
Pick what you need. Everything runs on one balance and one API.
Crypto processing
Accept 10 coins on 11 networks through the API, with a status and a webhook for every invoice.
Payment links
Create a link in the dashboard or the Telegram bot and send it in any chat. No website needed.
Hosted checkout
A payment page with your logo and colors. Customers pick a coin, scan a QR code and pay.
ConnectAuto-conversion
Payments in BTC, ETH or TON turn into USDT the moment they arrive, or stay as they are. You choose for each coin.
Mass payouts
Pay affiliates, sellers or users in bulk from a CSV file or through the API. Network fee only.
/ One API for every network /
Developer-ready
- REST API and sandbox
- Webhooks and events
- Idempotency keys
- Test coins on testnets
POST /v1/invoices
Authorization: Bearer sc_test_8f2b1d7e
{
"amount": "48.00",
"currency": "USD",
"order_id": "4127",
"accept": ["usdt_tron", "btc", "ton"]
}/ Hosted or embedded /
Your checkout
Try a test payment. Nothing here touches a real blockchain.
Harbor Books
Order 4127
Order total $48.00
- Send exactly
- 48.00 USDT
- To this address on TRON
TJ8rVw0kQ2mXcL7pNa4sHd9fYt3uBe6gZl- Rate fixed for
- 20:00
Waiting for payment
Send the exact amount to the address above.
0 of 19
Webhook to harborbooks.example200 OK
Test invoice. The addresses are not real, so don’t send funds to them.
Merchant dashboard
- One balance for every coin and network
- Withdrawals to your wallet in minutes
- Reports ready for your accountant
- Online stores
- SaaS
- Telegram bots
- Marketplaces
- Games
- Hosting and VPN
- Online courses
- Freelance platforms
- Digital goods
- Exchangers
Pricing
One rate for every coin and network.
0.5%
per incoming payment
$0
setup and monthly fee
Network fee
for withdrawals and payouts
Over $500,000 a month? We set a lower rate. On $20,000 of monthly sales you pay $100.
ConnectF.A.Q.
Who can connect?
Online stores, SaaS products, Telegram bots and other internet businesses. You can start as an individual or as a company. We ask a few questions about your business before the first withdrawal.
How long does setup take?
Payment links work the same day. An API integration usually takes a developer a day or two with the sandbox.
Can I test without real money?
Yes. The sandbox runs on test networks with test coins and sends real webhooks, so you can build the whole flow first.
Which coins and networks do you support?
USDT, USDC, BTC, ETH, TON, TRX, SOL, BNB, LTC and DOGE across 11 networks, including TRON, Ethereum, BNB Chain, TON and Solana.
What if a customer sends the wrong amount?
If they send too little, the invoice stays open so they can send the rest. If they send too much, the difference goes to your balance and you decide whether to refund it.
How long is the rate fixed?
For 20 minutes from the moment the invoice is created. After that the customer gets a fresh rate.
How fast does money reach my balance?
As soon as the network confirms the payment: about a minute for USDT on TRON and a few seconds on TON.
Do I have to convert everything to USDT?
No. Choose for each coin: convert on arrival, or keep it on your balance.
What does it cost?
We take 0.5% of each incoming payment. No setup or monthly fee. Withdrawals and payouts cost only the network fee.
Who holds the funds?
Payments are credited to your Sendcity balance. Withdraw to your own wallet at any time, or turn on automatic withdrawals.
How do I know a webhook came from you?
Every webhook is signed with HMAC-SHA256 using your secret key. Check the signature before you mark an order as paid.
Get started with Sendcity
Tell us about your project. We reply within one business day with dashboard access and sandbox keys.
Request sent
We’ll reply to within one business day.