Sunspot SDK

A universal, zero-config SDK for generating Groth16 Zero-Knowledge proofs in the browser, Node.js, and Bun. This library seamlessly bridges Noir (1.0.0-beta.18) circuit execution with a blazing-fast Go/Gnark WebAssembly prover.

Installation

npm install sunspot-sdk
npm install @noir-lang/[email protected]

Quick Start

import { SunspotSDK } from 'sunspot-sdk';
import circuitJson from './target/circuit.json'; // Your compiled Noir circuit

async function generateProof() {
    // 1. Initialize the SDK (WASM is bundled automatically)
    const prover = new SunspotSDK(circuitJson);
    await prover.init();

    // 2. Load your Proving Keys
    // circuit.ccs is generated by `sunspot compile`
    const ccsBytes = await fetch('./target/circuit.ccs').then(r => r.arrayBuffer());
    // pk and vk are generated by `sunspot setup`
    const pkBytes = await fetch('./target/circuit.pk').then(r => r.arrayBuffer());

    // 3. Define Circuit Inputs
    // This depends on your noir circuit
    const inputs = {
        old_root: "12345...",
        new_root: "67890..."
    };

    // 4. Generate the Proof
    const { proof, publicInputs } = await prover.prove(
        inputs, 
        new Uint8Array(ccsBytes), 
        new Uint8Array(pkBytes)
    );

    console.log("Proof Generated!", proof.length, "bytes");
}

generateProof();