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Base Contract Technical Profiler
x402
Base Contract Technical Profiler is a paid API for AI agents from auditor-x402.onrender.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-19).
Returns bytecode size, proxy type detection (EIP-1167/EIP-1967 implementation and admin slots), and owner() for a given contract address on Base mainnet.
Price / call$0.003
Success—
StatusUnknown
How this service works
Technical profile of a contract on Base: bytecode size, proxy detection (EIP-1167 / EIP-1967 implementation and admin) and owner(). This is NOT a security audit.
Output
Returns a structured technical profile including: bytecode size in bytes, whether the contract is an EIP-1167 minimal proxy (and its target), whether it is an EIP-1967 proxy (with implementation and admin slot values if present), and the result of calling owner() on the contract. This is structural metadata, not a security audit.
Example use cases
Identify proxy pattern before integration
“I'm about to integrate with the contract at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA on Base — can you check if it's a transparent proxy, UUPS, or minimal clone, and tell me what the implementation address is?”
Verify contract ownership for due diligence
“Who owns the contract at 0x2626664c2603336E57B271c5C0b26F421741e481 on Base? I need to confirm ownership before we proceed with an audit.”
Detect clone factory deployments
“Is the contract at 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD on Base an EIP-1167 minimal proxy clone? If so, what's the master implementation it points to?”
Technical details
Endpoint
POSThttps://auditor-x402.onrender.com/api/contract-profile?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, low-cost structural inspection of a Base mainnet contract — specifically proxy pattern detection and ownership — without running a full security audit. Ideal for pre-integration due diligence, understanding upgrade patterns, or confirming ownership chains. Prefer this over manual RPC calls or block explorers when you need programmatic, structured output in an agent workflow.
Side effects
- Invalid or non-existent contract address returns an error or empty profile
- Address is an EOA (externally owned account) — bytecode size will be 0 and proxy fields absent
- Contract does not implement owner() — that field will be null or omitted
- Non-Base addresses (Ethereum mainnet, L2s) will not return valid data
- Network congestion may cause slow or failed RPC reads
- Payment failure (insufficient USDC or x402 misconfiguration) returns 402
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string | Address (0x...) to inspect |
Tags
x402
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