Crypto payments for SaaS apps

SolKnife Gateway

Add a crypto payment gateway to your app on the Solana blockchain. Accept USDC, USDT, SOL, or another Solana token, send customers Telegram updates through @solknife_bot, and let your backend receive signed payment callbacks.

Connect your app Read docs

You receive the full payment

Your business wallet receives the full customer payment in the token you choose. SolKnife takes a separate fixed SOL fee.

Verified on Solana

Gateway checks the Solana payment details before marking an order as paid, so your app does not rely on browser claims.

Simple SaaS onboarding

Start with USDC, USDT, SOL, or another Solana token. Connect your wallet, callback URL, Telegram chat id, and app domain.

Telegram notifications

Customers add @solknife_bot and share a chat id, then receive payment status updates in Telegram.

App-ready callbacks

Signed callbacks let your backend update orders, subscriptions, or credits after Gateway confirms payment.

Trust pages

Clear enough for SaaS teams, strict enough for crypto payments.

About Gateway

What Gateway does, who it is for, and how it turns Solana payments into backend events.

Security model

How direct wallet settlement, server-side API keys, and signed callbacks protect your flow.

Disclaimer

Clear boundaries for custody, refunds, compliance, availability, and payment finality.

Payment flow

Create checkout. Customer pays in crypto. Your app gets the result.

Your backend creates the intent after collecting the customer's Telegram chat id. The customer pays with a Solana wallet. Gateway verifies the payment before sending a signed callback to your system and a bot notification to the customer.

Try payment console

Create intent

POST /api/payments
x-gateway-key: sk_live_...

  {
    "checkoutReference": "order-1001",
    "customerTelegramChatId": "123456789",
    "merchantAmountRaw": "250000000",
    "merchantTokenMint": "accepted token address"
  }