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Base Contract Risk Verdict
x402
Base Contract Risk Verdict is a paid API for AI agents from api.jagent.dev, paid per call via x402, $0.0099/call, status unknown (last checked 2026-10-10).
Analyzes a Base mainnet smart contract address and returns a plain-English risk verdict including proxy type, token standards, and privileged function details.
Price / call$0.0099
Success—
StatusUnknown
How this service works
Plain English risk verdict for a Base smart contract. JSON body: address (0x + 40 hex), one contract per call, body max 4 KB, 2 to 30 s. Returns JSON: proxy type, standards, privileged functions (min…
Output
A JSON response containing the contract's proxy type (e.g. transparent, UUPS, or none), implemented token/interface standards (e.g. ERC-20, ERC-721), a list of privileged functions with their access control details, and an overall plain-English risk summary describing the contract's safety profile.
Example use cases
DeFi token safety check before swap
“I'm about to swap into this token on Base at 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA — can you analyze the contract and tell me if there are any red flags, admin backdoors, or proxy patterns I should worry about?”
NFT contract audit before minting
“I want to mint from this NFT contract on Base at 0x7c6b91d9be155a6db01f749217d76ff02a7227f2 — run a risk check on it and let me know if it has any privileged functions or upgradeable proxy patterns that could be risky.”
Verify contract before approving token spend
“Before I approve this Base contract at 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 to spend my USDC, can you check whether it's a proxy, what token standards it follows, and flag any dangerous owner-only functions?”
Technical details
Endpoint
POSThttps://api.jagent.dev/v1/contract-risk-verdict?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, plain-English security assessment of a specific Base mainnet smart contract before interacting, approving, or investing. It is purpose-built for Base (not generic EVM chains) and returns structured risk signals including proxy patterns and privileged functions — making it ideal for pre-transaction safety checks in DeFi, NFT, or wallet agent workflows where a human-readable verdict is needed alongside structured JSON data.
Side effects
- Invalid or malformed address (not 0x + 40 hex) returns a validation error
- Contract address does not exist on Base mainnet returns not-found or empty analysis
- Request body exceeds 4 KB limit returns a payload-too-large error
- Contract bytecode is not verifiable or is an EOA returns limited or inconclusive results
- Response latency may reach up to 30 seconds for complex contracts
- Payment failure via x402 protocol prevents call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| address | string |
Tags
x402
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