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developer-sdk.md

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Developer SDK: @kerne/sdk

Kerne provides a robust TypeScript SDK for developers and institutional partners to integrate with the protocol's liquidity and intent-solving engine.

Installation

npm install @kerne/sdk

Core Features

1. Vault Integration

Easily interact with any KerneVault to deposit, withdraw, or query analytics.

import { KerneSDK, VaultTier } from '@kerne/sdk';

const sdk = new KerneSDK({ chainId: 8453 }); // Base
const vault = await sdk.getVault('0x...');

// Get analytics
const apy = await vault.getProjectedAPY();
const solvency = await vault.getSolvencyRatio();

2. useSolver Hook

For partners building intent-based interfaces, the SDK provides a React hook to interact with the Zero-Fee Intent Network (ZIN).

const { fulfillIntent, estimateSpread } = useSolver();

// Fulfill a CowSwap intent
const result = await fulfillIntent({
  tokenIn: '0x...',
  tokenOut: '0x...',
  amountOut: parseUnits('100', 6),
  user: userAddress
});

3. Private Bundle Submission

The SDK supports submitting transactions via private RPCs (like Flashbots) to protect against MEV front-running during large ZIN executions or arbitrage runs.

4. Institutional Compliance

For "Pro Mode" vaults, the SDK includes built-in helpers for IComplianceHook integration, allowing for automated KYC/AML verification before transaction submission.