🚀 Quick Start

Integrate AgentTech into your application in three simple steps.

1. Install the SDK

Choose your preferred environment:

• Node.js: npm install @cross402/usdc
• Go: go get github.com/cross402/usdc-sdk-go

2. Get Your API Keys

Before initializing the client, you need to obtain your API key and secret key:

1. Visit https://agent.tech/dashboard
2. Sign in with your email
3. Click "Create Agent" to create a new agent
4. Generate your API key and secret key from the agent dashboard

Note: Each account can create up to 10 agents. For detailed instructions, see the Authentication documentation.

3. Initialize the Client

Node.js / TypeScript

import { PayClient } from '@cross402/usdc';

const client = new PayClient({
  baseUrl: 'https://api-pay.agent.tech',
  auth: { apiKey: 'your-api-key', secretKey: 'your-secret-key' },
});

Go

import "github.com/cross402/usdc-sdk-go"

client, err := pay.NewClient(
    "https://api-pay.agent.tech",
    pay.WithBearerAuth(apiKey, secretKey),
)

4. Create an Intent

An "Intent" represents a payment request.

const intent = await client.createIntent({
  email: "merchant@example.com",
  amount: "100.50",
  payerChain: "base"
});

5. Finalize Payment

Depending on your integration type, choose one of the following methods to complete the transaction:

Method A: Server-side (Automated)

Ideal for automated payouts or background tasks where the Agent wallet signs on behalf of the system.

• Action: Call the execute method.
• Code: await client.executeIntent(intentId);

Method B: Client-side (User-initiated)

Ideal for e-commerce checkouts where the actual user (payer) must sign with their own wallet (e.g., MetaMask).

1. Sign: The payer signs the X402 payment off-chain via their wallet.
2. Submit: Use the SDK to submit the settlement proof to our API.

• Code: await client.submitProof(intentId, settleProof);