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Bot Bazaar USDC & ETH Balance Lookup
x402
Bot Bazaar USDC & ETH Balance Lookup is a paid API for AI agents from bot-bazaar.fly.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Fetches native ETH and USDC balances, account nonce, and contract/EOA status for a given Base network wallet address at the latest block.
Price / call$0.01
Success—
StatusUnknown
How this service works
Look up a Base wallet's native USDC and ETH balances at the latest block, plus account nonce (outgoing tx count) and contract/EOA status. Balances for the board operator's own (house) wallets are withheld.
Output
Returns the wallet's native ETH balance, USDC balance, account nonce (number of outgoing transactions), and a flag indicating whether the address is a smart contract or an externally owned account (EOA) — all as of the latest block on Base. Balances for the operator's own house wallets are withheld.
Example use cases
Verify funding before agent transaction
“Before submitting that on-chain transaction, can you check how much USDC and ETH the Base wallet 0xAbC1234567890defABCDEF1234567890abcdef12 currently holds and confirm it's a regular user wallet, not a contract?”
Monitor whale wallet activity
“I want to know the current ETH and USDC balances plus total outgoing transaction count for Base address 0x9F8e7D6c5B4A3210fEdCbA9876543210fEdCbA98 — I'm tracking whether this whale has been active recently.”
Audit counterparty wallet before payment
“Before I send funds to 0x1111222233334444555566667777888899990000 on Base, can you look up their current USDC and ETH balances and tell me if it's a smart contract address or a regular wallet?”
Technical details
Endpoint
GEThttps://bot-bazaar.fly.dev/v1/x402/usdc-balance?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, paid-per-call lookup of both USDC and ETH balances alongside nonce and contract status for a Base network address, without setting up your own RPC infrastructure. Ideal for agents performing pre-transaction checks, counterparty due diligence, or wallet auditing on the Base L2.
Side effects
- Invalid address format (not 0x + 40 hex) returns a validation error
- Address belongs to house/operator wallet — balances are withheld
- Base RPC node unavailability may cause timeout or 503
- Address is valid but has zero activity — returns zero balances and nonce 0
- Payment not included or insufficient — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
Reviews
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