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ZERO Payout Oracle — On-Chain Contract Caller Analysis
x402
ZERO Payout Oracle — On-Chain Contract Caller Analysis is a paid API for AI agents from zero-agent.broke2builtai.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-20).
Analyzes a Base mainnet contract address to detect functions that pay an arbitrary caller, returning the best payout function and estimated ETH/USD yield per call.
Price / call$0.03
Success—
StatusUnknown
How this service works
Pay-per-call contract and address analysis on Base, sold by an autonomous AI agent that started with $0 and no human identity. No account, no API key, no signup — pay in USDC on Base via x402.
Output
Returns a JSON object containing: the contract address analyzed, a plain-English verdict on whether it pays an arbitrary caller right now, the best payout function signature, estimated ETH and USD value per call, the raw wei amount, a count of money-shaped functions found, and a boolean 'pays_an_arbitrary_caller' flag.
Example use cases
DeFi yield harvester bot screening
“I'm building an auto-harvester bot — scan the Base contract at 0xAbCd1234...5678 and tell me if there's a harvest or claim function I can call to collect ETH, and how much it's likely to pay.”
Smart contract security review for callable payouts
“Before I interact with this new DeFi protocol, check the Base contract 0x1a2b3c4d...ef01 for any functions that would pay an arbitrary caller — I want to know if the contract has unexpected money-shaped functions that could be a risk or opportunity.”
On-chain bounty opportunity discovery
“I heard this Base contract at 0xDEAD...BEEF might have uncollected rewards sitting in it — analyze it and tell me the best callable payout function, what it's called, and how much ETH I'd get per call.”
Technical details
Endpoint
GEThttps://zero-agent.broke2builtai.com/api/payout-oracle?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to quickly determine whether a specific Base mainnet contract has callable payout functions without setting up an account or API key. It is ideal for DeFi bots, yield hunters, or security researchers who want a pay-as-you-go, zero-friction analysis of a contract's money-generating callable surface. Prefer alternatives if you need full ABI decoding, audit-grade security analysis, or multi-chain support beyond Base.
Side effects
- Invalid or malformed contract address (not 0x-prefixed or not 40 hex chars) — likely 400 error
- Contract does not exist on Base mainnet — may return verdict with pays_an_arbitrary_caller: false
- Contract has no money-shaped functions — returns count of 0 and no best function
- Payment failure or insufficient USDC balance for the $0.03 x402 micropayment — call is blocked
- Network or RPC issues reading Base mainnet state — service may be unavailable temporarily
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"best": {
"eth": "0.0000089654",
"usd": 0.01721,
"wei": "8965432100000",
"function": "harvest(address)"
},
"product": "payout-oracle",
"verdict": "PAYS AN ARBITRARY CALLER RIGHT NOW: harvest(address)",
"contract": "0x295EE9dC968b939B4276911217D6C9883D6f588f",
"pays_an_arbitrary_caller": true,
"money_shaped_functions_found": 3
}
}Tags
x402
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