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Agent Tape – Base ETH/USDC Balance
x402
Agent Tape – Base ETH/USDC Balance is a paid API for AI agents from agent-tape.annushka1190.workers.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Returns the ETH and/or USDC balance of a wallet address on the Base network, pay-per-request via USDC x402 with no API keys required.
Price / call$0.004
Success—
StatusUnknown
How this service works
Live DEX tape for AI trading agents: search pairs, token price and liquidity, pair lookup, boosts, paid DexScreener orders, Base ETH/USDC balance, nonce, contract check, gas, and tx receipt. Pay-per-request USDC via x402. No API keys, no accounts.
Output
Returns a JSON object with ok: true and balance data for ETH and/or USDC held by the queried address on the Base network, reflecting current on-chain state.
Example use cases
Pre-trade wallet balance check
“Before I swap anything, check the ETH and USDC balance on Base for my wallet 0x1234abcd... so I know if I have enough to cover the trade and gas.”
Monitor bot wallet liquidity
“Fetch the current ETH and USDC balance on Base for my trading bot's wallet 0xDEAD...BEEF so I can confirm it's still funded and ready to execute.”
Audit third-party wallet holdings
“Look up how much ETH and USDC a wallet at 0x9876...FEDC is holding on Base — I'm trying to verify their on-chain balance before proceeding.”
Technical details
Endpoint
GEThttps://agent-tape.annushka1190.workers.dev/v1/balanceWhen to prefer
Choose this endpoint when you need a quick, keyless, pay-per-use lookup of ETH or USDC balances on the Base network for an AI trading agent workflow, especially when you want to avoid account setup overhead. Prefer it over generic RPC calls when you need a pre-packaged, agent-friendly JSON response without managing node infrastructure.
Side effects
- Invalid or malformed wallet address returns an error or empty result
- Payment failure via x402 if USDC is insufficient or payment not processed
- Network congestion on Base may cause stale or delayed balance reads
- Missing required query parameters (e.g. address) returns a 400-level error
- Rate limiting or upstream RPC failure may cause intermittent 5xx responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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