{"uid":"cap_Fyobtx3K_5fHObyWjjgUA","slug":"agentutility-subdomain-enumerator-385e8ccf","name":"AgentUtility Subdomain Enumerator","description":"Paid x402 endpoints organized into product clusters. USDC-settled on Base. MCP-callable. ERC-8004 identity registry agentId 47167.","url":"https://x402.agentutility.ai/subdomain-enum","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["domain"],"properties":{"domain":{"type":"string","description":"Target domain to enumerate, e.g. 'example.com'. Normalized (scheme/www stripped)."},"include_wildcards":{"type":"boolean","description":"Include wildcard cert entries (*.sub.example.com). Optional, default false."}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"subdomains":{"type":"array","items":{"type":"object","properties":{"hostname":{"type":"string"}}}},"subdomain_count":{"type":"integer"}}}}}}},"responseSchema":{"type":"json","example":{"subdomains":[{"hostname":"www.example.com"}],"subdomain_count":12}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ilL1bpC5SNqYH50tBUPGD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Enumerates subdomains for a given domain, returning a list of discovered hostnames and a count","exampleAgentPrompt":"Can you enumerate all the subdomains for tesla.com and tell me how many there are?","exampleUseCases":null,"resultDescription":"A JSON object containing an array of subdomain objects (each with a 'hostname' field) and a 'subdomain_count' integer indicating how many subdomains were found.","failureModes":["Invalid or non-existent domain returns empty subdomain list","Malformed domain input may return an error response","Payment failure via x402 results in 402 response before processing","Rate limiting or timeout for domains with extremely large subdomain spaces","Private or heavily shielded domains may return incomplete results"],"whenToPreferThis":"Use this endpoint when an agent needs to programmatically discover the subdomain landscape of a target domain — e.g. for security auditing, attack surface mapping, competitive intelligence, or OSINT. Prefer this over manual DNS brute-force tools when you need a single pay-per-call API with structured JSON output settled in USDC via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:09:51.211Z","isFirstParty":false}