> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cdp.coinbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Pay for Service

## Overview

Make a paid API request to an x402 endpoint with automatic USDC payment. Use when you or the user want to call a paid API, make an x402 request, or use a paid service.

Use [search-for-service](/agentic-wallet/cli/skills/search-for-service) first to find available endpoints.

## Prerequisites

* Must be authenticated (`npx awal@latest status` to check)
* Wallet must have sufficient USDC balance (`npx awal@latest balance` to check)

## Confirming wallet status

```bash theme={null}
npx awal@latest status
```

If the wallet is not authenticated, refer to the [authenticate-wallet](/agentic-wallet/cli/skills/authenticate) skill.

## Command syntax

```bash theme={null}
npx awal@latest x402 pay <url> [-X <method>] [-d <json>] [-q <params>] [-h <json>] [--max-amount <n>] [--json]
```

## Options

| Option | Description |
| - | - |
| `-X, --method <method>` | HTTP method (default: GET) |
| `-d, --data <json>` | Request body as JSON string |
| `-q, --query <params>` | Query parameters as JSON string |
| `-h, --headers <json>` | Custom HTTP headers as JSON string |
| `--max-amount <amount>` | Max payment in USDC atomic units (1000000 = \$1.00) |
| `--correlation-id <id>` | Group related operations |
| `--json` | Output as JSON |

## USDC amounts

x402 uses USDC atomic units (6 decimals):

| Atomic Units | USD |
| - | - |
| 1000000 | \$1.00 |
| 100000 | \$0.10 |
| 50000 | \$0.05 |
| 10000 | \$0.01 |

## Examples

```bash theme={null}
# Make a GET request (auto-pays)
npx awal@latest x402 pay https://example.com/api/weather

# Make a POST request with body
npx awal@latest x402 pay https://example.com/api/sentiment -X POST -d '{"text": "I love this product"}'

# Limit max payment to $0.10
npx awal@latest x402 pay https://example.com/api/data --max-amount 100000
```

## Error handling

| Error | Resolution |
| - | - |
| "Not authenticated" | Run `npx awal@latest auth login <email>` first |
| "No X402 payment requirements found" | URL may not be an x402 endpoint; use [search-for-service](/agentic-wallet/cli/skills/search-for-service) to find valid endpoints |
| "Insufficient balance" | Fund wallet with USDC; see [fund](/agentic-wallet/cli/skills/fund) skill |