Platform Components

Hinkal consists of three tightly integrated components.

Hinkal SDK

A developer-first toolkit that allows PSPs, payment processors, neobanks, OTC desks, and enterprises to embed universal confidential settlement directly into their existing infrastructure.

The SDK enables:

• Private treasury and settlement flows

• Confidential merchant payouts and payroll

• Removal of wallet history and transaction linkage

• Selective disclosure for compliance via viewing keys

All without changing custody models, compliance processes, or routing logic.

Hinkal Send

A lightweight application and SDK that enables private transfers from any public wallet to any public wallet, abstracting complexity from end users. Assets are shielded and routed privately under the hood, while recipients receive funds in existing public wallets.

This allows wallets and payment stacks to offer universal “send privately” functionality without introducing new wallet concepts or user friction.

Hinkal Receive

A lightweight application and SDK that enables users to receive and manage funds privately using their existing public wallet.

Instead of sending assets directly to a merchant or recipient’s public address (where balances and settlement flows become visible on-chain), funds are deposited into the Hinkal smart contract as a private balance. The recipient then simply connects their current wallet to the Hinkal interface to unlock and access that balance.

This allows PSPs, payment stacks, and merchants to offer a native “receive privately” option, where settlement happens on public chains but wallet exposure, balances, and transaction history remain confidential, without any new wallets, chain migration, or custody changes.

Hinkal Wallet

A reference wallet implementation demonstrating full-spectrum confidentiality: private balances, private transfers, and private DeFi interactions on public chains. The wallet showcases the capabilities of the protocol.