Heuristic Solidity risk scan: pattern-level red flags for a contract address (verified source via Sourcify) orGET /scan · x402 API by apollo-contract-scan
Heuristic Solidity risk scan: pattern-level red flags for a contract address (verified source via Sourcify) or raw source. Honest scoping: a fast pre-audit, not a formal security audit.
What does this x402 API do?
Heuristic Solidity risk scan: pattern-level red flags for a contract address (verified source via Sourcify) or. This is an x402-gated GET API resource from apollo-contract-scan. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05. The listing records $0.5 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.5 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-05
- Resource ID
- fb17c13f0615182ef124517a
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://apollo-contract-scan.vercel.app/scan", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in 402-index
Discovered through bazaar.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
OPTIONS https://apollo-contract-scan.vercel.app/ returned 405.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.5 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.