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Vextorium Proxy Detect
x402
Vextorium Proxy Detect is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-11).
Detects whether a smart contract is an upgradeable proxy and returns its type, implementation address, admin, and beacon across 12 EVM chains.
Price / call$0.003
Success—
StatusUnknown
How this service works
Detect whether a contract is an upgradeable proxy (EIP-1967 transparent/UUPS, beacon, ZeppelinOS, EIP-1167 minimal) and return implementation, admin and beacon. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
Output
Returns a JSON object with: is_proxy (boolean), type (e.g. 'ZeppelinOS', 'EIP-1967 transparent', 'UUPS', 'EIP-1167 minimal', or null), implementation address, admin address, beacon address, network, contract address, and a human-readable note explaining the security implication of the proxy type found.
Example use cases
Audit proxy pattern before investing
“Before I interact with this DeFi protocol, can you check if the contract 0x2Ce6311ddAE708829bc0784C967b7d77D19FD779 on Ethereum is an upgradeable proxy and who the admin is? I want to know if someone can change the code on me.”
Resolve implementation for code review
“I need to review the actual code behind this Arbitrum contract — can you check if 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 is a proxy on Arbitrum and give me the real implementation address so I can look at the logic?”
Security scan for proxy type on Polygon
“Can you scan 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygon and tell me if it's a proxy contract — specifically whether it's a transparent proxy, UUPS, beacon, or minimal clone?”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/proxy-detect?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to programmatically determine whether a smart contract on any of the 12 supported EVM chains delegates its logic to another contract via a known proxy standard (EIP-1967 transparent/UUPS, beacon, ZeppelinOS legacy, or EIP-1167 minimal clone). Prefer this over manual ABI inspection when you need a fast, structured answer with the implementation, admin, and beacon addresses resolved automatically — especially useful in security audits, DeFi due diligence, or contract indexing pipelines.
Side effects
- Invalid or non-checksummed contract address returns an error
- Address is an EOA (not a contract) — returns is_proxy: false
- Unsupported network value returns validation error
- Contract exists but uses an unknown/non-standard proxy pattern — returns is_proxy: false with null fields
- Network RPC issues may cause timeouts or empty responses
- Address with no deployed bytecode treated as non-proxy
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "An upgradeable proxy lets the admin change the code: check who it is.",
"type": "ZeppelinOS (legacy upgradeable proxy)",
"admin": null,
"beacon": null,
"network": "base",
"contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"is_proxy": true,
"implementation": "0x2Ce6311ddAE708829bc0784C967b7d77D19FD779"
}
}Tags
x402
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