Trade

---
name: trade
description: Swap or trade tokens on Base network. Use when you or the user want to trade, swap, exchange, buy, sell, or convert between tokens like USDC, ETH, and WETH. Covers phrases like "buy ETH", "sell ETH for USDC", "convert USDC to ETH", "get some ETH".
user-invocable: true
disable-model-invocation: false
allowed-tools: ["Bash(npx awal@2.0.3 status*)", "Bash(npx awal@2.0.3 trade *)", "Bash(npx awal@2.0.3 balance*)"]
---

# Trading Tokens

Use the `npx awal@2.0.3 trade` command to swap tokens on Base network via the CDP Swap API. You must be authenticated to trade.

## Confirm wallet is initialized and authed

```bash
npx awal@2.0.3 status
```

If the wallet is not authenticated, refer to the `authenticate-wallet` skill.

## Command Syntax

```bash
npx awal@2.0.3 trade <amount> <from> <to> [options]
```

## Arguments

| Argument | Description                                                            |
| -------- | ---------------------------------------------------------------------- |
| `amount` | Amount to swap (see Amount Formats below)                              |
| `from`   | Source token: alias (usdc, eth, weth) or contract address (0x...)      |
| `to`     | Destination token: alias (usdc, eth, weth) or contract address (0x...) |

## Amount Formats

The amount can be specified in multiple formats:

| Format        | Example                | Description                            |
| ------------- | ---------------------- | -------------------------------------- |
| Dollar prefix | `'$1.00'`, `'$0.50'`  | USD notation (decimals based on token) |
| Decimal       | `1.0`, `0.50`, `0.001` | Human-readable with decimal point      |
| Whole number  | `5`, `100`             | Interpreted as whole tokens            |
| Atomic units  | `500000`               | Large integers treated as atomic units |

**Auto-detection**: Large integers without a decimal point are treated as atomic units. For example, `500000` for USDC (6 decimals) = $0.50.

**Decimals**: For known tokens (usdc=6, eth=18, weth=18), decimals are automatic. For arbitrary contract addresses, decimals are read from the token contract.

## Options

| Option               | Description                                   |
| -------------------- | --------------------------------------------- |
| `-c, --chain <name>` | Blockchain network (default: base)            |
| `-s, --slippage <n>` | Slippage tolerance in basis points (100 = 1%) |
| `--json`             | Output result as JSON                         |

## Token Aliases

| Alias | Token | Decimals | Address                                    |
| ----- | ----- | -------- | ------------------------------------------ |
| usdc  | USDC  | 6        | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| eth   | ETH   | 18       | 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE |
| weth  | WETH  | 18       | 0x4200000000000000000000000000000000000006 |

**IMPORTANT**: Always single-quote amounts that use `$` to prevent bash variable expansion (e.g. `'$1.00'` not `$1.00`).

## Input Validation

Before constructing the command, validate all user-provided values to prevent shell injection:

- **amount**: Must match `^\$?[\d.]+$` (digits, optional decimal point, optional `$` prefix). Reject if it contains spaces, semicolons, pipes, backticks, or other shell metacharacters.
- **from / to**: Must be a known alias (`usdc`, `eth`, `weth`) or a valid `0x` hex address (`^0x[0-9a-fA-F]{40}$`). Reject any other value.
- **slippage**: Must be a positive integer (`^\d+$`).

Do not pass unvalidated user input into the command.

## Examples

```bash
# Swap $1 USDC for ETH (dollar prefix — note the single quotes)
npx awal@2.0.3 trade '$1' usdc eth

# Swap 0.50 USDC for ETH (decimal format)
npx awal@2.0.3 trade 0.50 usdc eth

# Swap 500000 atomic units of USDC for ETH
npx awal@2.0.3 trade 500000 usdc eth

# Swap 0.01 ETH for USDC
npx awal@2.0.3 trade 0.01 eth usdc

# Swap with custom slippage (2%)
npx awal@2.0.3 trade '$5' usdc eth --slippage 200

# Swap using contract addresses (decimals read from chain)
npx awal@2.0.3 trade 100 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x4200000000000000000000000000000000000006

# Get JSON output
npx awal@2.0.3 trade '$1' usdc eth --json
```

## Prerequisites

- Must be authenticated (`awal status` to check)
- Wallet must have sufficient balance of the source token

## Error Handling

Common errors:

- "Not authenticated" - Run `awal auth login <email>` first
- "Invalid token" - Use a valid alias (usdc, eth, weth) or 0x address
- "Cannot swap a token to itself" - From and to must be different
- "Swap failed: TRANSFER_FROM_FAILED" - Insufficient balance or approval issue
- "No liquidity" - Try a smaller amount or different token pair
- "Amount has X decimals but token only supports Y" - Too many decimal places