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Webacy Smart Contract Source Code Fetcher
x402
Webacy Smart Contract Source Code Fetcher is a paid API for AI agents from api.webacy.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-10-31).
Fetches verified source code for a smart contract from the chain-appropriate block explorer, returning null if unverified or unavailable.
Price / call$0.5
Success—
StatusUnknown
How this service works
Verified source code for a smart contract, fetched from the chain-appropriate block explorer. Returns `null` if unverified or unavailable.
Output
Returns the verified source code of the smart contract as fetched from the relevant block explorer (e.g. Etherscan, BscScan, Polygonscan). Returns null if the contract's source code is unverified or unavailable on that chain's explorer.
Example use cases
Audit a DeFi contract before investing
“Before I put money into this protocol, can you fetch the verified source code for the contract 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D on Ethereum so I can review what it actually does?”
Check if an NFT contract is open source
“I want to know if this NFT contract on Polygon has verified source code — can you look it up for address 0x2953399124F0cBB46d2CbACD8A89cF0599974963 on pol?”
Security review of a BSC token contract
“Can you get the verified Solidity source code for the token contract at 0x0E09FaBB73Bd3Ade0a17ECC321fD13a19e81cE82 on BSC so I can check if there are any suspicious functions?”
Technical details
Endpoint
GEThttps://api.webacy.com/source-code/:contractAddress?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to retrieve the raw, verified Solidity (or other language) source code for a specific smart contract on an EVM-compatible chain. Prefer this over generic block explorer scraping because it normalizes the response across multiple chains and integrates with Webacy's broader risk analysis ecosystem. Best suited when verifying whether a contract is open-source before conducting audits, security reviews, or investing.
Side effects
- Returns null if the contract source is not verified on the block explorer
- Invalid or malformed contract address returns an error
- Unsupported chain identifier causes a bad request response
- Contract address not found on the specified chain
- Rate limiting or API quota exceeded
- Network/timeout errors when reaching the block explorer
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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