Sandbox on Solana devnet. No real funds move here. Use sk_test_ keys and a wallet set to devnet. Get devnet SOL from the Solana faucet and devnet USDC from the Circle faucet.
SolKnife GatewayRegister app

Payment setup

Connect crypto payments to your app

Choose the crypto token your business wants to accept, connect the payout wallet, and add your callback URL and Telegram chat id. Store the returned API key and callback secret on your server. Paste the key into the developer console only on a machine you trust.

Devnet USDC from the Circle faucet. It has no value.

Guide: get Telegram chat ID
  1. Open Telegram and start @solknife_sandbox_bot.
  2. Press Start or send /start from the Telegram account that should receive updates.
  3. The bot replies with the numeric chat ID of that account. Copy it.
  4. Paste it here. Gateway sends a notice to this chat when a payment is confirmed.