agnicpay/send-usdc

Sending USDC

Use the npx agnic@latest send command to transfer USDC from the wallet to any Ethereum address or ENS name on Base.

Confirm wallet is initialized and authed

npx agnic@latest status

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

Command Syntax

npx agnic@latest send <amount> <recipient> [--chain <chain>] [--json]

Arguments

| Argument | Description | | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | amount | Amount to send: '$1.00', 1.00, or atomic units (1000000 = $1). Always single-quote amounts that use $ to prevent bash variable expansion. If the number looks like atomic units (no decimal or > 100), treat as atomic units. | | recipient | Ethereum address (0x...) or ENS name (vitalik.eth) |

Options

| Option | Description | | ---------------- | ---------------------------------- | | --chain <name> | Blockchain network (default: base) | | --json | Output result as JSON |

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.
• recipient: Must be a valid 0x hex address (^0x[0-9a-fA-F]{40}$) or an ENS name (^[a-zA-Z0-9.-]+\.eth$). Reject any value containing spaces or shell metacharacters.

Do not pass unvalidated user input into the command.

USDC Amounts

| Format | Example | Description | | ------------- | ---------------------- | -------------------------------------- | | Dollar prefix | '$1.00', '$0.50' | USD notation (single-quote the $) | | Decimal | 1.0, 0.50 | Human-readable with decimal point | | Whole number | 5, 100 | Interpreted as whole USDC tokens | | Atomic units | 500000 | Large integers treated as atomic units |

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

ENS Resolution

ENS names are automatically resolved to addresses via Ethereum mainnet. The command will:

1. Detect ENS names (any string containing .eth)
2. Resolve the name to an address
3. Display both the ENS name and resolved address in the output

Examples

# Send $1.00 USDC to an address
npx agnic@latest send 1 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7

# Send $0.50 USDC to an ENS name
npx agnic@latest send 0.50 vitalik.eth

# Send with dollar sign prefix (note the single quotes)
npx agnic@latest send '$5.00' 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7

# Get JSON output
npx agnic@latest send 1 vitalik.eth --json

Prerequisites

• Must be authenticated (npx agnic@latest status to check)
• Wallet must have sufficient USDC balance (npx agnic@latest balance to check)

Error Handling

Common errors:

• "Not authenticated" — Run npx agnic@latest auth login first
• "Insufficient balance" — Check balance with npx agnic@latest balance
• "Could not resolve ENS name" — Verify the ENS name exists
• "Invalid recipient" — Must be valid 0x address or ENS name