{"id":"75ae82d2-b11e-4785-975a-d1983e4fce78","shortId":"Vyj4dz","kind":"x402","title":"AI-powered smart contract audit summary with risk scoring, paid per call via x402.","tagline":"AI-powered smart contract audit summary with risk scoring, paid per call via x402.","description":"The `/intel/contract-report` endpoint on intel.hugen.tokyo provides AI-synthesized smart contract audit summaries for crypto assets. Given a contract address and chain (defaulting to Base), it returns a risk score, risk level, verification status, compiler version, security flags (e.g., proxy detection, open-source status), an actionable verdict, and recommendations. This replaces the need to manually aggregate data from multiple sources and run separate LLM analysis.\n\nThe endpoint is part of a broader Intel API suite that also offers token reports, wallet reports, and yield reports. It accepts GET requests with optional `address` and `chain` query parameters; when the address is omitted, demo data is returned. The API is gated via the x402 payment protocol at $0.50 USDC per call on Base. Alternative access methods include an MCP gateway, API key with free trial credit, or the `x402-pay` Python SDK.\n\nThe response includes structured fields such as `risk_score` (numeric), `risk_level` (categorical), `is_verified`, `compiler`, `verdict` (natural language summary), `security_flags`, and `recommendations` (actionable list). The OpenAPI spec is version 3.1.0 and the service is at version 0.1.0. Response schemas are not fully specified in the OpenAPI definition, so the exact shape is inferred from the sample 402 challenge response.","tags":[],"capabilities":["smart-contract-audit","risk-scoring","proxy-detection","source-verification","ai-synthesis","multi-chain-support","x402-payment","erc20-analysis"],"categories":["crypto","security","defi"],"synonyms":["contract audit","smart contract analysis","contract security check","solidity audit","contract risk score","contract verification","on-chain security","crypto due diligence"],"warnings":["Response schema is not formally specified in the OpenAPI definition; structure inferred from 402 challenge sample.","No dedicated documentation beyond auto-generated FastAPI /docs page.","API is at version 0.1.0 — early stage, interface may change.","Supported chains beyond 'base' are not documented."],"endpointUrl":"https://intel.hugen.tokyo/intel/contract-report","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","amount":"500000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"},"payTo":"4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z","amount":"500000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}]},"qualityScore":"0.650","qualityRationale":"The endpoint is live (402 challenge captured) with a clear OpenAPI spec and sample response data from the challenge. However, the response schema is not formally defined in the OpenAPI spec, docs are minimal (auto-generated FastAPI), and there is no dedicated pricing or README page. The example response is inferred from the 402 challenge 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'0.1.0':211 '0.50':147 '3.1.0':204 '402':231 'accept':118 'access':154 'action':77,197 'address':50,123,130 'aggreg':87 'ai':2,17,38 'ai-pow':1,16 'ai-synthes':37 'ai-synthesis' 'also':108 'altern':153 'analysi':96 'api':105,138,160 'asset':46 'audit':6,21,42 'base':55,152 'broader':103 'call':13,28,150 'categor':185 'chain':52,125 'challeng':232 'compil':65,188 'contract':5,20,41,49 'contract audit' 'contract risk score' 'contract security check' 'contract verification' 'credit':165 'crypto':45 'crypto due diligence' 'data':88,134 'default':53 'definit':221 'demo':133 'detect':71 'e.g':69 'endpoint':33,98 'erc20-analysis' 'exact':224 'field':177 'flag':68,194 'free':163 'fulli':216 'gate':140 'gateway':159 'get':119 'given':47 'includ':156,175 'infer':227 'intel':104 'intel.hugen.tokyo':35 'key':161 'languag':191 'level':62,184 'list':198 'llm':95 'manual':86 'mcp':158 'method':155 'multi-chain-support' 'multipl':90 'natur':190 'need':84 'numer':182 'offer':109 'omit':132 'on-chain security' 'open':73 'open-sourc':72 'openapi':200,220 'option':122 'paid':11,26 'paramet':127 'part':100 'pay':170 'payment':144 'per':12,27,149 'power':3,18 'protocol':145 'provid':36 'proxi':70 'proxy-detection' 'python':171 'queri':126 'recommend':80,196 'replac':82 'report':111,113,116 'request':120 'respons':174,212,233 'return':57,136 'risk':9,24,59,61,180,183 'risk-scoring' 'run':93 'sampl':230 'schema':213 'score':10,25,60,181 'sdk':172 'secur':67,193 'separ':94 'servic':207 'shape':225 'smart':4,19,40 'smart contract analysis' 'smart-contract-audit' 'solidity audit' 'sourc':74,91 'source-verification' 'spec':201 'specifi':217 'status':64,75 'structur':176 'suit':106 'summari':7,22,43,192 'synthes':39 'token':110 'trial':164 'usdc':148 'verdict':78,189 'verif':63 'verifi':187 'version':66,203,210 'via':14,29,141 'wallet':112 'x402':15,30,143,169 'x402-pay':168 'x402-payment' 'yield':115","prices":[{"id":"1743bc4d-7594-4b54-bd45-7a46141377b6","listingId":"75ae82d2-b11e-4785-975a-d1983e4fce78","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60","amount":"500000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300},{"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","extra":{"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"},"payTo":"4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z","amount":"500000","scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:40.777Z"}],"sources":[{"listingId":"75ae82d2-b11e-4785-975a-d1983e4fce78","source":"x402_bazaar","sourceId":"https://intel.hugen.tokyo/intel/contract-report","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:40.777Z","lastSeenAt":"2026-04-22T05:32:33.614Z"}],"details":{"listingId":"75ae82d2-b11e-4785-975a-d1983e4fce78","quickStartSnippet":"# Using x402-pay Python SDK\npip install x402-pay\n\nimport x402_pay\nr = x402_pay.get(\n  'https://intel.hugen.tokyo/intel/contract-report?address=0xdac17f958d2ee523a2206206994597c13d831ec7&chain=base'\n)\nprint(r.json())","exampleRequest":null,"exampleResponse":{"verdict":"Verified Solidity contract with standard ERC-20 implementation. Proxy pattern detected — upgradeable by owner.","compiler":"v0.8.19+commit.7dd6d404","risk_level":"medium","risk_score":35,"is_verified":true,"security_flags":{"is_proxy":true,"is_open_source":true},"recommendations":["Monitor proxy upgrades","Verify owner multisig setup"]},"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint costs $0.50 USDC on Base per call.","source_url":"https://intel.hugen.tokyo/intel/contract-report"},{"claim":"The API is described as 'AI-synthesized due diligence reports for crypto assets. Multi-source aggregation + risk scoring + actionable verdicts.'","source_url":"https://intel.hugen.tokyo/docs"},{"claim":"The contract-report endpoint accepts GET with optional address and chain query parameters and returns demo data when address is omitted.","source_url":"https://intel.hugen.tokyo/docs"},{"claim":"Alternative access via MCP gateway, API key, or x402-pay SDK is available.","source_url":"https://intel.hugen.tokyo/intel/contract-report"}],"useCases":["Automated smart contract security review before interacting with a DeFi protocol","Agent-driven due diligence pipeline that checks contract risk before executing trades","Screening newly deployed contracts for proxy patterns and upgrade risks","Integrating contract audit data into a portfolio risk dashboard"],"bestFor":["AI agents needing on-demand contract security assessments","DeFi developers wanting quick risk triage of smart contracts","Automated compliance or risk pipelines for crypto assets"],"notFor":["Full formal verification or exhaustive manual audits","Non-EVM chains or contracts without on-chain verification","Free or high-volume bulk scanning (each call costs $0.50)"],"kindDetails":{},"updatedAt":"2026-04-22T02:51:51.075Z"}}