@mistcash/sdk
Core cryptographic engine — WASM-powered Poseidon hashing, Groth16 proof generation, Merkle tree operations, and Chamber contract utilities.
Introduction
MIST.cash SDK is a TypeScript toolkit for building privacy-preserving applications on Starknet. It enables zero-knowledge proof-based private transactions using Groth16 proofs, Poseidon hashing, and Merkle trees.
Why MIST.cash?
Section titled “Why MIST.cash?”Traditional blockchain transactions are fully transparent — sender, receiver, and amount are all publicly visible. MIST.cash breaks this link using zero-knowledge cryptography, allowing users to deposit, transfer, and withdraw tokens without revealing the connection between sender and receiver.
Architecture
Section titled “Architecture”The SDK is organized as a monorepo with three packages:
@mistcash/config
Shared configuration — contract ABIs, addresses, supported token definitions, and TypeScript types.
@mistcash/react
React integration — the useMist hook for managing deposits, withdrawals,
and proof generation from React applications.
How It Works
Section titled “How It Works”- Deposit — A user deposits tokens into the Chamber contract along with a cryptographic commitment (hash of a secret).
- Privacy — The deposit is added to a Merkle tree. The link between depositor and the commitment is the only public information.
- Withdraw — A different address generates a zero-knowledge proof showing knowledge of a valid commitment in the tree, without revealing which one. Tokens are sent to the new address.
The zero-knowledge proof is generated client-side using a Go-compiled WASM module (Gnark) and verified on-chain via the Garaga verifier.
Quick Links
Section titled “Quick Links” Getting Started Install the SDK and make your first privacy-preserving transaction.
Core SDK Hashing, proofs, Merkle trees, and contract utilities.
React Hook Integrate MIST.cash into your React + Starknet app.
API Reference Complete function signatures and type definitions.