Build on AfterCrypt Protocol

Add conditional transfers, time-locks, and automated release mechanisms to your Web3 application with just 3 lines of code.

Quick Start

1. Install the SDK

npm install @aftercrypt/sdk
# or
pnpm add @aftercrypt/sdk
# or
yarn add @aftercrypt/sdk

2. Initialize the SDK

import { AfterCryptProtocol } from '@aftercrypt/sdk';

const sdk = new AfterCryptProtocol({
  chain: 'bsc',
  mode: 'mainnet',
  apiKey: 'your_api_key_here' // optional
});

3. Create Your First Vault

const vault = await sdk.vaults.create({
  beneficiaries: [
    '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb',
    '0x8626f6940E2eb28930eFb4CeF49B2d1F2C9C1199'
  ],
  shares: [70, 30], // 70% / 30% split
  checkInIntervalDays: 90,
  gracePeriodDays: 30
});

console.log('Vault created:', vault.id);

4. Monitor Vault Status

// Check vault status
const status = await sdk.vaults.get(vault.id);
console.log('Status:', status.status);

// Listen for attestation events
sdk.events.onAttestation(vault.id, (attestation) => {
  console.log('New attestation:', attestation);
});

// Perform regular check-ins
await sdk.vaults.checkIn(vault.id);

Developer Features

TypeScript SDK

Fully typed SDK with IntelliSense support. Works with React, Vue, Angular, and vanilla JavaScript.

SDK Reference

Smart Contracts

Deploy vaults directly from your contracts. Solidity interfaces included.

Contract Docs

REST & GraphQL APIs

Query vault data, monitor attestations, and subscribe to real-time events.

API Reference

Documentation

Architecture Overview

Learn how AfterCrypt Protocol works under the hood

Cross-Chain Guide

Deploy vaults across 8+ supported chains

Attestation Network

Understand the decentralized condition verification process

Security Model

Review our security architecture and audit reports

Integration Examples

See how zkVault and others use AfterCrypt Protocol

API Reference

Complete REST, GraphQL, and SDK documentation

Supported Chains

Deploy vaults on any of these chains with the same unified API. Cross-chain synchronization via LayerZero V2.

56
BNB Chain
1
Ethereum
137
Polygon
42161
Arbitrum
10
Optimism
8453
Base
43114
Avalanche
204
opBNB

Common Use Cases

Wallet Integration

// Add vault creation to your wallet
import { AfterCryptProtocol } from '@aftercrypt/sdk';

async function createTransferVault(
  wallet: WalletClient
) {
  const sdk = new AfterCryptProtocol({
    chain: 'ethereum',
    mode: 'mainnet'
  });

  const vault = await sdk.vaults.create({
    beneficiaries: wallet.beneficiaries,
    shares: wallet.beneficiaryShares,
    checkInIntervalDays: 90
  });

  return vault;
}

DeFi Protocol Integration

// Add time-locked rewards
import { AfterCryptProtocol } from '@aftercrypt/sdk';

async function lockRewards(
  user: Address,
  amount: bigint
) {
  const vault = await sdk.vaults.create({
    beneficiaries: [user],
    shares: [100],
    checkInIntervalDays: 0, // Time-lock only
    gracePeriodDays: 365 // 1-year lock
  });

  // Transfer tokens to vault
  await sdk.assets.deposit(vault.id, {
    token: rewardToken,
    amount
  });
}

Cross-Chain Vault

// Deploy vault to multiple chains
const vault = await sdk.vaults.create({
  beneficiaries: ['0xAlice', '0xBob'],
  shares: [50, 50]
});

// Deploy to other chains
await sdk.crossChain.deployToChain(
  vault.id,
  137 // Polygon
);
await sdk.crossChain.deployToChain(
  vault.id,
  42161 // Arbitrum
);

// Sync state across chains
await sdk.crossChain.sync(vault.id);

Event Monitoring

// Subscribe to vault events
sdk.events.onVaultCreated((vault) => {
  console.log('Vault created:', vault.id);
});

sdk.events.onAttestation(vaultId, (att) => {
  console.log('Attestation received:', att);
});

sdk.events.onConsensusReached(vaultId, () => {
  console.log('Consensus reached!');
});

sdk.events.onVaultReleased(vaultId, () => {
  console.log('Assets released');
});

Developer Resources

Example Apps

Full-stack example applications and starter templates.

Browse Examples

GitHub

Contribute to the protocol or report issues.

View Source

Developer Grants

Apply for grants to build on AfterCrypt Protocol.

Learn More

Ready to Start Building?

Join our developer community and get help from the AfterCrypt Protocol team.

Join TelegramView API Docs