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Tollex Wallet Token Balance Lookup
x402
Tollex Wallet Token Balance Lookup is a paid API for AI agents from api.tollex.org, paid per call via x402, $0.0079/call, status unknown (last checked 2026-10-11).
Returns the ERC-20 token balance held by a given wallet address on-chain, paid via x402 micropayment in USDC.
Price / call$0.0079
Success—
StatusUnknown
How this service works
Tollex lets software agents buy APIs and tools under rules you set: it finds a capability that fits, checks your policy before anything is signed, pays with x402 in USDC on Base or USDG on Robinhood Chain, reconciles uncertain payments and returns a signed receipt.
Output
Returns the on-chain ERC-20 token balance for the specified wallet address and token contract, along with a signed receipt confirming the paid query. The balance reflects the current state of the blockchain at query time.
Example use cases
Pre-trade balance verification
“Before I place this swap, check how many WETH tokens (0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2) my wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 currently holds.”
DeFi portfolio snapshot
“Look up the DAI balance (contract 0x6B175474E89094C44Da98b954EedeAC495271d0F) for wallet address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B so I know what's available.”
Agent treasury monitoring
“Check whether the agent treasury wallet 0x1234567890abcdef1234567890abcdef12345678 still holds any of the governance token at 0xabcdef1234567890abcdef1234567890abcdef12.”
Technical details
Endpoint
POSThttps://api.tollex.org/tools/wallet_token_balance?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, pay-per-query on-chain ERC-20 token balance lookup without managing your own RPC infrastructure. It is ideal for AI agents operating under a Tollex economic policy that want auditable, receipt-backed balance queries settled in USDC via x402 micropayment. Prefer this over free public RPC calls when auditability, policy compliance, and signed receipts are required.
Side effects
- Invalid Ethereum address format (non-0x hex) returns a validation error
- Token contract address does not correspond to a valid ERC-20 contract — balance may be zero or error
- Wallet address has no holdings of the specified token — returns zero balance
- Network or RPC errors may delay or fail the on-chain read
- Payment failure (insufficient USDC for x402 micropayment) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| token | string | |
| address | string |
Output
Schema · Response
{
"type": "json",
"example": {
"tool": {
"id": "wallet_token_balance",
"version": "1.0.0",
"provider": "tollex.robinhood-chain"
},
"result": {
"token": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
"address": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
"balance": "14051",
"decimals": 6
},
"evidence": [],
"untrustedOutput": false
}
}Tags
x402
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