Sandbox — Proco | Live in 10 Minutes. No Real Money.

Quickstart

Four steps to your first payment

Everything below runs on Base Sepolia testnet. No real funds at risk.

1

Install the SDK

Terminalshell
npm install @proco/sdk

2

Initialise with your sandbox key

initialise.tstypescript
import { Proco } from '@proco/sdk';

const proco = new Proco({
  apiKey: 'sk_sandbox_...',      // your sandbox key from the dashboard
  environment: 'sandbox'    // ← routes everything to Base Sepolia
});

3

Create an agent wallet with a policy

create-wallet.tstypescript
const wallet = await proco.wallets.create({
  agentId: 'agent_trading_001',
  policy: {
    maxTransactionAmount: 100,      // USDC cap per transaction
    allowedCounterparties: ['0x...'], // whitelist
    requireApprovalAbove: 50          // human-in-the-loop above $50
  }
});

// → { id: 'wlt_...', address: '0x742d35Cc...', balance: '1000.00 USDC' }

Wallet created · 1,000 testnet USDC pre-loaded

4

Send your first payment

send-payment.tstypescript
const payment = await proco.payments.create({
  from: wallet.id,
  to: '0x742d35Cc4fBB0a3b6c8f...',
  amount: 25,
  currency: 'USDC',
  memo: 'API call fee'
});

// Event stream:
// → { event: 'payment.created',   ts: 0ms    }
// → { event: 'payment.signed',    ts: 120ms  }
// → { event: 'payment.broadcast', ts: 340ms  }
// → { event: 'payment.settled',   ts: 8200ms }

payment.status   // 'settled'
payment.settlementTime  // '8.2s'
payment.txHash   // '0xabc123...'

Settled in 8.2s · Zero gas cost in sandbox

Testnet USDC

No faucet needed.

Every sandbox wallet starts pre-loaded. Focus on building, not token logistics.

Starting balance

1,000 USDC

Each sandbox wallet is provisioned with 1,000 testnet USDC on Base Sepolia — automatically, on creation. No faucet requests, no waiting. When you run low, top up with a single API call: proco.sandbox.refill(walletId)

Network

Base
Sepolia

What's included

Everything production has.

The sandbox is a full environment clone — not a reduced feature set.

🔑

Sandbox API keys

Fully isolated. Switch to production by changing one string.

💵

Testnet USDC

1,000 USDC per wallet on creation. Refill any time with one call.

🛡️

Policy engine

Same spend limits, counterparty rules, and approval flows as production.

⚡

Webhooks

Real-time event streaming for every payment state transition.

📋

Audit trail

Full transaction log with policy evaluations and event timestamps.

⛓️

Base Sepolia

Same chain, same RPC stack. Identical behaviour to production Base mainnet.

📦

TypeScript SDK + REST

Full SDK with type-safe response objects. REST API for any language.

🚀

One-line production upgrade

Change 'sandbox' to 'production'. That's it.

Live in 10 minutes.
No real money.

Four steps to your first payment

No faucet needed.

Everything production has.

Ready to go live?

Live in 10 minutes.No real money.

Four steps to your first payment

No faucet needed.

Everything production has.

Ready to go live?

Live in 10 minutes.
No real money.