Name: contract-source-verified
Price: 0.01 USDC
Availability: InStock

$ man contract-source-verified

agentutility / edge-market / contract-source-verified

PRICE / CALL

$0.01

USDC · base mainnet · scheme: exact

METHOD

POST

CLUSTER

edgemarket

CATEGORY

uncategorized

STATUS

● live

NAME

contract-source-verified — fetches verified contract source code and abi for a deployed contract on ethereum, optimism, polygon, base, or arbitrum

SYNOPSIS

POST https://x402.agentutility.ai/contract-source-verified
     Content-Type: application/json
     X-PAYMENT:    <signed-transferWithAuthorization>

     { ... }

↳ first call → 402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.

DESCRIPTION

Fetches verified contract source code and ABI for a deployed contract on Ethereum, Optimism, Polygon, Base, or Arbitrum. Returns whether the source is verified, the contract name, compiler version, parsed ABI (as a JSON array, not a string), full Solidity source code (multi-file sources reassembled with '// File: ...' separators), license type, optimizer settings, constructor arguments, and, for proxy contracts, the implementation address. Wraps Etherscan v2's multichain getsourcecode endpoint. Use it as an Etherscan source lookup, Basescan ABI fetcher, Solidity source lookup, contract verification check, or ABI fetcher.

INPUT — request schema

property	type	description	req?
address	string	0x-prefixed 20-byte EVM contract address.	required
chain	string	EVM chain. Default 'base'. Other supported: 'ethereum', 'polygon', 'arbitrum', 'optimism'. enum: base · ethereum · polygon · arbitrum · optimism	optional

OUTPUT — response shape

field	type	description
address	string	Deployed contract address that was looked up.
chain	string	Chain the contract lives on (ethereum, optimism, polygon, base, or arbitrum).
is_verified	string	Whether the contract source has been verified on the chain's explorer.
name	string	Contract name as declared in the verified Solidity source.
compiler_version	string	Solidity compiler version used to build the verified contract (e.g. v0.8.20+commit.a1b79de6).
abi	string	Parsed contract ABI as a JSON array of function, event, and error definitions.
source_code	string	Full Solidity source code; multi-file contracts are reassembled with '// File: ...' separators.
license	string	SPDX license identifier declared in the verified source (e.g. MIT, GPL-3.0, UNLICENSED).
optimization	string	Optimizer settings used at compile time, including whether enabled and the runs value.
constructor_arguments	string	ABI-encoded constructor arguments passed when the contract was deployed.
proxy	string	For proxy contracts, the implementation address the proxy delegates calls to.
source	string	Upstream data source for the lookup (Etherscan v2 multichain getsourcecode).

EXAMPLES — two ways to call

EXAMPLE 1 · curl

curl -X POST https://x402.agentutility.ai/contract-source-verified \
  -H 'Content-Type: application/json' \
  -d '{ }'

first response = 402 Payment Required with payment requirements; sign + retry with X-PAYMENT.

EXAMPLE 2 · mcp

# Install the MCP package for this endpoint's cluster
npx -y @agentutility/mcp-<cluster>

# Required: EVM private key with USDC on Base
export X402_PRIVATE_KEY=0x...

# Then call the contract-source-verified tool from your MCP-aware agent.

MCP server handles payment automatically — your coding agent just calls the tool by name.

METADATA

tags: edge-marketcontract-verificationetherscanabi-fetchersolidity-sourceproxy-implementationgetsourcecode
methods: POST
cluster: edgemarket
price: $0.01 USDC per call

ADJACENT — other endpoints in edgemarket

endpoint	description	price
contract-source	Returns verified source code and ABI for any deployed contract on Ethereum, Base, Optimism, Arbitrum, or Polygon.	$0.01
dex-liquidity-depth	Measures DEX liquidity depth by summing TVL across every DefiLlama-tracked yield pool holding a given ERC-20 on Ethereum, Base, Polygon,…	$0.01
eth-logs	Reads on-chain event logs with generic eth_getLogs queries across Base, Ethereum, Arbitrum, Optimism, Polygon, and BSC via public no-auth…	$0.01
lp-lock-check	Checks whether an LP token's liquidity is locked, useful for detecting rug-pull risk before swapping into a new pair.	$0.01
nft-floor	Gets an NFT collection's floor price and recent sales via Reservoir.	$0.01
agent-card-resolve	Resolves an ERC-8004 agentId to its on-chain owner, agentURI, and agent card JSON.	$0.005
arbitrage-spread	Finds the cross-exchange arbitrage spread for any CoinGecko-listed coin.	$0.005
basename-resolve	Resolves Coinbase Basenames (.base.eth) to Ethereum addresses and back, reading the Base mainnet L2 Resolver on-chain (no gas, no wallet).	$0.005