> ## Documentation Index
> Fetch the complete documentation index at: https://agents.laso.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Automate Laso Finance payments with n8n workflows

> Build no-code n8n workflows that call the Laso Finance x402 API to order prepaid cards, gift cards, and send push-to-card payments automatically.

## Overview

[n8n](https://n8n.io) is a workflow automation platform that can orchestrate API calls, including x402 payments. You can build workflows that order prepaid cards, gift cards, and poll for results — all without writing code.

## Approach

n8n doesn't have a native x402 node, so you'll use the **HTTP Request** node with a custom pre-request script that handles the x402 payment signing.

## Prerequisites

* An n8n instance (cloud or self-hosted)
* A funded agent wallet with USDC on Base ([Locus](https://paywithlocus.com/SKILL.md), [Sponge](https://wallet.paysponge.com/skill.md), or [Ampersend](https://www.ampersend.ai/getting-started.md))
* Your wallet's private key stored as an n8n credential

## Workflow setup

### 1. Store your wallet key

In n8n, go to **Credentials** and create a new **Header Auth** credential. Store your private key securely — you'll reference it in the Code node.

### 2. Build the workflow

Create a workflow with these nodes:

```
Trigger → Code (sign x402) → HTTP Request → Process Response
```

### Code node: x402 payment signer

Use a **Code** node to handle the x402 flow. This node:

1. Makes the initial request to get the 402 response
2. Signs the payment with your wallet
3. Returns the signed `X-PAYMENT` header

```javascript theme={null}
const axios = require("axios");

// Initial request to get 402 payment requirements
const url = "https://laso.finance/get-card?amount=50";

try {
  await axios.get(url);
} catch (error) {
  if (error.response?.status === 402) {
    const paymentRequirements = error.response.data;
    // Sign the payment using x402 client library
    // Pass the X-PAYMENT header to the next node
    return [{ json: { paymentRequirements, url } }];
  }
  throw error;
}
```

### HTTP Request node

Configure the HTTP Request node to replay the request with the `X-PAYMENT` header from the previous Code node.

### 3. Poll for card details

Add a **Loop** node that calls `GET /get-card-data?card_id=X` with the Bearer token every 3 seconds until `status` is `"ready"`.

## Example workflows

### Order a card on schedule

```
Schedule Trigger (daily) → Code (x402 sign) → HTTP Request (/get-card)
→ Wait (10s) → HTTP Request (/get-card-data) → IF (status=ready)
→ Send Email with card details
```

## Tips

* Use n8n's **Wait** node for polling delays instead of loops with no delay
* Store tokens from `/auth` in n8n's static data so they persist across executions
* Use the **IF** node to check `status` field when polling for card details
* Set up **Error Trigger** workflows to handle payment failures

<Note>
  Since n8n's Code node runs in a sandboxed environment, you may need to use a
  self-hosted n8n instance to install the `@x402/axios` npm package for full
  x402 support.
</Note>