Core Concepts

Wallet-First

KORAMP does not use a user table for customers. The wallet address is the transaction identity. As a consequence:

• No registration process, email, or passwords.
• Users keep holding their own private keys.
• Order history is tracked through wallet addresses, not accounts.

Quote

A quote is a price offer that is locked when created. A quote stores:

• Reference market price.
• Spread.
• Service fee.
• Network fee.
• Tax.
• Total Rupiah amount and crypto amount.
• Expiration time.

Quotes are consumed atomically: once used to create an order, a quote is marked used and cannot be reused.

Top Up vs Sell

• Top Up (on-ramp): users pay Rupiah via Xendit QRIS, then crypto is sent to the destination wallet. Value direction: Rupiah in, crypto out.
• Sell (off-ramp): users send crypto to the platform deposit address, then Rupiah is transferred to their bank account. Value direction: crypto in, Rupiah out.

Both use the same quote model, but the payment and confirmation flows differ.

Assets & Networks

Asset	Network	Chain ID	Wallet Ecosystem
SOL	Solana Devnet	-	Solana
ETH	Base Sepolia	84532	EVM
BNB	BSC Testnet	97	EVM

Ramping is active on all three networks. Asset selection determines the wallet ecosystem (Solana or EVM) the user must use.

Order Status

• Top Up orders move from CREATED to complete once completedAt is set.
• Sell orders track deposit confirmations via confirmations and requiredConfirmations.

Learn the flow details in Transaction Flow.