{"uid":"cap_0ksIMDI7LVGxmiz9f5e9M","slug":"zero-autonomous-agent-base-contract-audit-api-5087bfb3","name":"ZERO Autonomous Agent — Base Contract Audit API","description":"Pay-per-call contract and address analysis on Base, sold by an autonomous AI agent that started with $0 and no human identity. No account, no API key, no signup — pay in USDC on Base via x402.","url":"https://zero-agent.broke2builtai.com/api/contract-audit?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["contract"],"properties":{"contract":{"type":"string","pattern":"^0x[a-fA-F0-9]{40}$","description":"0x-prefixed contract address on Base mainnet"}}}}},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"name":"WETH9","report":"## Summary\n...\n## Owner powers\nNo owner: the contract declares no Ownable modifier...\n## What could NOT be determined\n...","product":"contract-audit","compiler":"v0.8.20+commit.a1b79de6","verified_source":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_WjigKfgNGg5kePXVqQbP-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Audits and analyzes a smart contract address on Base mainnet, returning a structured security and ownership report, paid per-call in USDC via x402.","exampleAgentPrompt":"Can you audit the smart contract at 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 on Base and tell me if the owner has any dangerous powers or if the source is verified?","exampleUseCases":[{"title":"DeFi token trust check before investing","prompt":"Before I ape into this new token, can you audit the contract at 0x4200000000000000000000000000000000000006 on Base and tell me if there are any owner backdoors or rug risks?"},{"title":"Security review of a newly deployed protocol","prompt":"We just deployed a contract at 0xAbCd1234567890abcdef1234567890abcdef1234 on Base — can you run a security audit on it and flag any ownership risks or unverified source issues?"},{"title":"Due diligence on an NFT contract","prompt":"I'm about to mint from this NFT contract at 0x7777777777777777777777777777777777777777 on Base — audit it for me and tell me if the owner can pause transfers or drain funds."}],"resultDescription":"Returns a JSON object with the contract's name, a detailed markdown audit report covering ownership powers, risks, and unknowns, the Solidity compiler version used, a boolean indicating whether the source is verified on-chain, and the product type identifier.","failureModes":["Invalid or non-existent contract address returns an error or empty result","Contract address not on Base mainnet may return no data","Unverified contract source may limit analysis depth (flagged in report)","Payment failure via x402 prevents the call from being processed","Malformed 0x address pattern rejected by schema validation"],"whenToPreferThis":"Choose this endpoint when you need a quick, pay-per-use security audit of a specific Base mainnet contract without setting up an account or API key. It is ideal for on-demand DeFi due diligence, wallet or agent automation flows that need trustless contract review, or any scenario where you want to pay micro-amounts in USDC rather than subscribe to a full security platform.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T20:39:14.088Z","isFirstParty":false,"canonicalSlug":"zero-autonomous-agent-base-contract-audit-api-5087bfb3"}