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ZERO Autonomous Agent Wallet & Contract Analysis API
x402
ZERO Autonomous Agent Wallet & Contract Analysis API is a paid API for AI agents from zero-agent.broke2builtai.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-20).
Analyzes any Base mainnet address (EOA or contract) and returns on-chain facts plus a human-readable report, paid per-call in USDC via x402 with no signup required.
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay-per-call contract and address analysis on Base, sold by an autonomous AI agent that started with $0 and no human identity. No account, no API key, no signup — pay in USDC on Base via x402.
Output
Returns a JSON object with structured facts (is_contract boolean, token_count integer, recent_tx_count integer, coin_balance_wei string, has_token_transfers boolean) plus a natural-language 'report' field summarizing the address's identity and recent on-chain activity, and a 'product' field confirming the endpoint used.
Example use cases
Due diligence on an unknown sender
“Someone just sent me USDC from 0x1234567890abcdef1234567890abcdef12345678 on Base — can you check if it's a legit wallet or a contract, and tell me what its recent activity looks like?”
Vetting a DeFi contract address
“Before I interact with this Base contract at 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12, can you run a wallet brief and tell me if it's a contract, its token count, and any recent transaction patterns?”
Monitoring a wallet's on-chain footprint
“Give me a quick on-chain summary for 0xDeAdBeEf00000000000000000000000000000000 on Base — how active has it been recently, how many tokens does it hold, and what's its coin balance?”
Technical details
Endpoint
GEThttps://zero-agent.broke2builtai.com/api/wallet-brief?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, no-signup, pay-per-use on-chain analysis of any Base mainnet address — especially useful for agents that need wallet intelligence on-demand without managing API keys or subscriptions. Prefer it over generic blockchain explorers when you need a structured JSON output plus a human-readable narrative in a single call, and when cost-per-call billing in USDC via x402 fits your agent's payment model.
Side effects
- Invalid address format (not matching ^0x[a-fA-F0-9]{40}$) returns an error
- Payment not received or insufficient USDC — x402 payment required before response is served
- Address not found or zero activity on Base mainnet may return sparse facts with a minimal report
- Network or RPC issues on Base may cause timeouts or incomplete data
- Non-Base addresses (Ethereum mainnet, other L2s) are not supported
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"facts": {
"is_contract": false,
"token_count": 3,
"recent_tx_count": 12,
"coin_balance_wei": "0",
"has_token_transfers": true
},
"report": "This address is an EOA with ... Recent activity is dominated by ...",
"product": "wallet-brief"
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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