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ISHOB Contract ABI Lookup
x402
ISHOB Contract ABI Lookup is a paid API for AI agents from api.ishob.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-14).
Returns the verified smart-contract ABI (and optional Solidity/Vyper source) for a given contract address on Ethereum, Base, Arbitrum, Optimism, Polygon, or BNB Chain, including proxy resolution to the implementation ABI.
Price / call$0.001
Success—
StatusUnknown
How this service works
Verified smart-contract ABI (+ optional Solidity/Vyper source) for Ethereum, Base, Arbitrum, Optimism, Polygon and BNB Chain from the open Sourcify registry: compiler, deployment, read/write function and event signatures, and proxy resolution to the implementation ABI. Unverified contracts return 404 (not charged).
Output
A JSON object containing the contract ABI array, contract name, chain, compiler version, verification status, a summary of read/write functions and event signatures, and — when resolve_proxy is true — the proxy type and implementation contract's ABI and address. Optionally includes verified Solidity/Vyper source files. Returns 404 (not charged) for unverified contracts.
Example use cases
DeFi protocol integration setup
“I need the full ABI for 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 on Polygon — can you resolve the proxy too so I get the actual implementation's functions, not just the proxy shell?”
Smart contract security audit prep
“Pull the verified ABI and Solidity source for 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on Ethereum so I can review its functions and events before the audit.”
Cross-chain contract comparison
“Get me the verified contract ABIs for address 0x4200000000000000000000000000000000000006 on both Optimism and Base so I can compare their read and write function signatures.”
Technical details
Endpoint
GEThttps://api.ishob.com/v1/crypto/contract-abi?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need authoritative, open-registry-verified ABI data (from Sourcify) across multiple EVM chains including Base, Arbitrum, Optimism, Polygon, and BNB Chain, especially when proxy resolution to the implementation ABI is required. It is ideal for agent workflows that need to understand contract interfaces programmatically without relying on Etherscan API keys. The pay-per-call x402 model makes it cost-effective for low-volume or sporadic lookups.
Side effects
- 404 returned (and not charged) if the contract is not verified in the Sourcify registry
- Invalid address format (not a 40-char hex) causes validation error
- Unsupported chain value returns schema validation error
- Contract exists but has no verified source — ABI may be partial or unavailable
- Proxy resolution may fail if the implementation address cannot be determined on-chain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"abi": [
"..."
],
"name": "FiatTokenProxy",
"chain": "base",
"proxy": {
"type": "ZeppelinOSProxy",
"is_proxy": true,
"implementations": [
{
"abi": [
"..."
],
"name": "FiatTokenV2_2",
"address": "0x2Ce6..."
}
]
},
"summary": {
"read": [
"admin()",
"implementation()"
],
"write": [
"upgradeTo(address)"
],
"events": [
"Upgraded(address)"
]
},
"compiler": "0.6.12+commit.27d51765",
"verified": true
}
}Tags
x402
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