Contract Source Verified

Fetches verified contract source code and ABI for a deployed contract on Ethereum, Optimism, Polygon, Base, or Arbitrum.

Overview

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.

Endpoint

Method	Endpoint	Price	Description
POST	/v1/marketplace/api/contract-source-verified	$0.0115	Invoke Contract Source Verified (Code) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i -X POST https://api.jarvisclaw.ai/v1/marketplace/api/contract-source-verified \
  -H 'Content-Type: application/json' \
  -d '{}'

# 2. Pay it (the SDK signs and retries for you)
curl -X POST https://api.jarvisclaw.ai/v1/marketplace/api/contract-source-verified \
  -H 'Content-Type: application/json' \
  -H 'X-PAYMENT: <signed-payload>' \
  -d '{}'

Open in the marketplace