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evm-contract-abi
x402
evm-contract-abi is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Fetches the ABI of a verified EVM smart contract, automatically resolving proxy contracts to their implementation ABI
Price / call$0.008
Success—
StatusUnknown
How this service works
Fetch just the ABI of a verified EVM contract, resolving a proxy to its implementation ABI as well. A cheap slice for when you only need the interface to encode calls or decode data, not the full source. Unverified contracts are reported honestly.
Output
Returns the ABI (Application Binary Interface) of a verified EVM smart contract as a JSON array of function, event, and error definitions. If the contract is a proxy, the ABI of the underlying implementation is resolved and returned. If the contract is unverified, the response honestly reports that status.
Example use cases
Example prompt
“Can you fetch the ABI for the smart contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Ethereum — I need it to encode some function calls?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/contract/abiWhen to prefer
Use this endpoint when you only need the ABI (interface) of an EVM contract to encode calls or decode data, and don't need the full source code. It is cheaper and faster than fetching full contract source. Particularly useful when working with proxy contracts where you need the implementation ABI automatically resolved. Choose this over a full source-code endpoint when your goal is programmatic interaction (encoding/decoding), not auditing.
Side effects
- Contract address is not verified on the specified network — returns an honest unverified status
- Invalid contract address format (not 0x + 40 hex) — returns a validation error
- Contract address is an EOA (not a contract) — returns appropriate error
- Unsupported network specified — returns validation error for non-enum network value
- Contract exists but ABI resolution fails for complex proxy patterns — partial or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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