Agnic Check Balance (x402)

Check USDC balance across networks (Base, Solana). Use when the user wants to check balance, see how much USDC is available, view funds, or verify wallet balance. Covers "check my balance", "how much do I have", "show funds", "wallet balance".

Checking USDC Balance

Use npx agnic@latest balance to check USDC balance across supported networks.

Authentication

Run npx agnic@latest status --json to verify. If not authenticated:

• Headless (CI/server/agent): Set AGNIC_TOKEN env var or pass --token <token>
• Interactive (has browser): Run npx agnic@latest auth login

See the authenticate-wallet skill for details.

Command Syntax

npx agnic@latest balance [--network <network>] [--json]

Options

Option	Description
--network <name>	Filter by network (default: all networks)
--json	Output result as JSON

Supported Networks

Network	Description
base	Base mainnet (primary)
base-sepolia	Base testnet
solana	Solana mainnet
solana-devnet	Solana devnet

Examples

# Check balance on all networks
npx agnic@latest balance --json

# Check balance on Base mainnet only
npx agnic@latest balance --network base --json

Expected Output

Network       Balance      Address
base          125.50 USDC  0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7
base-sepolia    0.00 USDC  0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7
solana          0.00 USDC  N/A
solana-devnet   0.00 USDC  N/A

Error Handling

Common errors:

• "Not authenticated" -- Run npx agnic@latest auth login or set AGNIC_TOKEN
• Network timeout -- Try again or specify a single network with --network base