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AgentUtility Token Balance Lookup
x402
AgentUtility Token Balance Lookup is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Returns the token balance of a wallet address for a specific ERC-20 token on a given chain
Price / call$0.005
Success—
StatusUnknown
How this service works
Paid x402 endpoints organized into product clusters. USDC-settled on Base. MCP-callable. ERC-8004 identity registry agentId 47167.
Output
Returns a JSON object with the chain identifier, token contract address, queried wallet address, human-readable balance (e.g. '1234.56'), and the raw integer balance in smallest token units (e.g. '1234560000').
Example use cases
Example prompt
“What's the current USDC balance (token 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913) for wallet 0x8f5cb67b49555e614892b7233cfddebfb746e531 on Base?”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/token-balanceWhen to prefer
Use this endpoint when you need a fast, pay-per-call on-chain ERC-20 token balance lookup without managing your own RPC infrastructure. Ideal for AI agents that need to verify wallet holdings, check USDC balances before a payment flow, or enrich user data with on-chain token balances — especially when operating on Base and paying via x402/USDC microtransactions.
Side effects
- Invalid wallet address format — malformed hex address returns an error
- Unsupported chain — chain not available on this endpoint
- Invalid token contract address — token not found or non-ERC-20 contract
- Network or RPC errors — upstream blockchain node unavailable
- Insufficient x402 payment — call rejected if USDC payment of $0.005 is not attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"token": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"wallet": "0x8f5cb67b49555e614892b7233cfddebfb746e531",
"balance": "1234.56",
"balance_raw": "1234560000"
}
}Tags
x402
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