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VeriGrace Contract Gate
x402
VeriGrace Contract Gate is a paid API for AI agents from api.verigrace.com:4451, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-13).
Performs static analysis of Solidity smart contracts on Base, returning a pass/fail safety verdict and checklist of red flags before trading or interacting with the contract.
Price / call$0.25
Success—
StatusUnknown
How this service works
Pre-trade contract safety gate: static analysis of verified Solidity source + on-chain metadata. Returns pass/fail verdict + red flag checklist (reentrancy, unchecked calls, owner privs, delegatecall, oracle single-point, rug vectors, age). Pay-per-check: 0.25 USDC on Base via x402. Source: Blockscout + Base RPC (public data only).
Output
A pass/fail verdict indicating whether the contract meets safety thresholds, accompanied by a structured red flag checklist covering: reentrancy vulnerabilities, unchecked external calls, owner privilege abuse vectors, delegatecall usage, oracle single-point-of-failure risks, rug pull vectors, and contract age — all derived from verified Solidity source and on-chain metadata.
Example use cases
DeFi token safety check before swap
“I'm about to buy this token on Base — can you run a contract safety audit on 0x4e2a3bd9D9a1... and tell me if it passes and what red flags show up, especially rug vectors or shady owner controls?”
NFT contract audit before minting
“I want to mint from this NFT project but I'm not sure if the contract is legit — can you check 0x7f8c2D00B... on Base for reentrancy issues, unchecked calls, or anything else that looks dangerous?”
DeFi protocol pre-investment due diligence
“Before I put any money into this new DeFi protocol, run a static analysis on their contract at 0x91aF55eC... and give me a pass or fail verdict along with the full checklist of security issues.”
Technical details
Endpoint
GEThttps://api.verigrace.com:4451/api/contract-gate?utm_source=zero.xyzWhen to prefer
Choose VeriGrace Contract Gate when you need a fast, automated pre-trade security screening of a specific smart contract on Base before a user interacts with or invests in it. It is ideal for AI trading agents, DeFi wallets, and portfolio tools that need a lightweight, pay-per-check gate rather than a full manual audit. Prefer this over general-purpose code scanners when you need on-chain metadata combined with static Solidity analysis in a single API call, and when operating on the Base network specifically.
Side effects
- Contract address not found on Base — returns error if contract does not exist on-chain
- Unverified source — analysis may be incomplete if Solidity source is not verified on Blockscout
- Network/RPC unavailability — Base RPC outages may cause timeouts
- Payment failure — transaction rejected if 0.25 USDC not successfully sent via x402
- Invalid contract address format — returns validation error for malformed addresses
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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