{"uid":"cap_Qic_UriQ71ccgyFM4NK4Q","slug":"vexquill-contract-audit-api-e294b479","name":"VexQuill Contract Audit API","description":"Automated static security analysis of Solidity smart contracts. Pay $0.005 USDC on Base per audit via x402. No signup, no API key.","url":"https://x402-audit-api.vexquill.deno.net/scan?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["address"],"properties":{"address":{"type":"string","description":"Base contract address (0x...) with verified source on Sourcify."}}},"responseSchema":{"type":"object","properties":{"target":{"type":"string"},"findings":{"type":"array","items":{"type":"object"}},"auditedAt":{"type":"string"},"riskScore":{"type":"number"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FUjlOsLAtLQlF6MnmKuzw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs automated static security analysis of a Solidity smart contract on Base by contract address, returning findings and a risk score.","exampleAgentPrompt":"Can you run a security audit on the Base smart contract at 0x1234567890abcdef1234567890abcdef12345678 and tell me if there are any vulnerabilities or what its risk score is?","exampleUseCases":[{"title":"Pre-interaction contract safety check","prompt":"Before I approve any tokens to this DeFi protocol on Base at 0xabc123def456abc123def456abc123def456abc1, can you audit the contract and flag any high-risk findings?"},{"title":"New token contract due diligence","prompt":"Someone just launched a token at 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef on Base — can you scan the contract for rug pull mechanics or security holes before I buy in?"},{"title":"Developer pre-deployment review","prompt":"I just deployed my Solidity contract to Base at 0x9999aaaa8888bbbb7777cccc6666dddd5555eeee and want to catch any security issues before I announce it — can you run a static audit and give me the risk score?"}],"resultDescription":"Returns a JSON object containing the target contract address, an array of security findings (each describing a potential vulnerability), a risk score (numeric), and the timestamp of the audit. The findings array details any detected issues such as reentrancy, integer overflows, or access control problems.","failureModes":["Contract address not found or not verified on Sourcify — audit cannot proceed without verified source code","Invalid or malformed address format — must be a valid 0x-prefixed Ethereum/Base address","Payment failure via x402 — audit not performed if USDC payment on Base does not go through","Contract on a network other than Base — only Base-deployed contracts with Sourcify verification are supported","Service downtime or Deno hosting errors — may return 5xx errors"],"whenToPreferThis":"Choose this endpoint when you need a quick, no-signup, pay-per-use static security audit of a Solidity contract deployed on Base with verified source on Sourcify. Ideal for agents that need on-demand contract risk scoring without managing API keys or subscriptions. Best for single-contract lookups rather than bulk audits.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T18:33:20.343Z","isFirstParty":false,"canonicalSlug":"vexquill-contract-audit-api-a43bca0b"}