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Sparks RE API — Token Audit (EVM Contract Risk Scanner)
x402
Sparks RE API — Token Audit (EVM Contract Risk Scanner) is a paid API for AI agents from sparks-re-api.sparksdigital-re.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).
Analyzes an EVM smart contract address on Base Mainnet to assess risk level, detect proxy patterns, and identify dangerous capabilities like minting, pausing, or blacklisting.
Price / call$0.05
Success—
StatusUnknown
How this service works
AI-powered real estate tools for property normalization, FHA compliance scanning, and investor metrics calculation. Powered by x402 micropayments.
Output
Returns a JSON object with the contract address, network identifier (eip155:8453 for Base), boolean flags for whether it's a contract and whether it's an EIP-1967 proxy, the implementation address if proxied, bytecode size in bytes, a numeric risk score from 0–100, a human-readable risk verdict (e.g. MODERATE_ADMIN_PRIVILEGES), detected capability flags (has_mint_selector, has_pause_selector, has_blacklist_selector, has_selfdestruct_opcode), and an array of explanatory notes.
Example use cases
Pre-investment token safety check
“Before I buy this token, can you audit the contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base and tell me if there are any admin backdoors, mint functions, or pause controls I should know about?”
DeFi protocol proxy detection
“I want to know if the contract at 0x2ce6311ddae708829bc0784c967b7d77d19fd779 is an upgradeable proxy — can you run a token audit and give me the risk score and any notes about its upgrade pattern?”
Stablecoin blacklist risk assessment
“Can you check whether the USDC contract at 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 on Base has blacklist or freeze capabilities, and what's the overall risk verdict?”
Technical details
Endpoint
POSThttps://sparks-re-api.sparksdigital-re.workers.dev/utilities/token-audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, on-chain risk assessment of a specific EVM token or DeFi contract deployed on Base Mainnet — especially when evaluating whether to interact with or invest in a contract. Prefer this over generic block explorers when you need structured risk scoring, proxy detection, and capability flagging in a single machine-readable response without manually parsing bytecode or ABI.
Side effects
- Invalid or malformed contract address (non-42-char or missing 0x prefix) returns a validation error
- Address is an EOA (externally owned account) rather than a contract — is_contract returns false with no further analysis
- Contract bytecode not accessible or RPC timeout on Base Mainnet returns a network error
- Address exists but has no detectable ABI selectors, resulting in empty detected_capabilities
- Payment of $0.05 USDC not provided or x402 micropayment fails, resulting in 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| contract_address | string | 42-character 0x EVM contract address on Base Mainnet |
Output
Schema · Response
{
"type": "json",
"example": {
"notes": [
"EIP-1967 upgradeable proxy detected."
],
"network": "eip155:8453",
"is_contract": true,
"risk_verdict": "MODERATE_ADMIN_PRIVILEGES",
"contract_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"is_eip1967_proxy": true,
"bytecode_size_bytes": 1842,
"risk_score_0_to_100": 35,
"detected_capabilities": {
"has_mint_selector": false,
"has_pause_selector": false,
"has_blacklist_selector": false,
"has_selfdestruct_opcode": false
},
"implementation_address": "0x2ce6311ddae708829bc0784c967b7d77d19fd779"
}
}Tags
x402
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