{"uid":"cap_VWC2zOLJftBDp5gOw44cL","slug":"domain-age-registrar-lookup-via-rdap-b00f7f69","name":"Domain Age & Registrar Lookup via RDAP","description":"Paid micro-utilities for cold-email outreach agents: domain deliverability audits, cold-email grading, template generation, plus a tools toolbox (hashing, JWT decode, IDs, slugs, JSON, regex, crypto prices, domain age, weather). Paid via x402 (USDC on Base). One signature per call. No keys. FREE CHECK: GET /preview/<paid-path> (same URL with /preview/ prefix) returns a 200 demo sample - verify output shape before paying. PAID CALL: GET the url -> 402 challenge -> sign + retry with X-PAYMENT -> settled on-chain (USDC, Base). Ready-to-paste client: GET /llms.txt section \"Pay in one call\". Catalog+MCP twin: /llms.txt.","url":"https://sigtap-outreach-api.sigtap.workers.dev/tools/domain-age","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"example.com","verdict":"registered","age_days":11000,"registrar":"RESERVED-Internet Assigned Numbers Authority","registrar_url":null,"registration_date":"1995-08-14T04:00:00Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FH7efgACUaCLqzDkFmYlE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a domain's registration date, age in days, and registrar information using RDAP protocol lookup","exampleAgentPrompt":"How old is the domain openai.com? I want to know when it was registered, how many days old it is, and who the registrar is.","exampleUseCases":[{"title":"Fraud screening for new signups","prompt":"Can you check how old the domain fastcashdeals247.net is? I want to know its registration date and age in days — if it's less than 90 days old I'm going to flag this lead as suspicious."},{"title":"Email sender trust check","prompt":"Before I reply to this cold email from someone at globalsupplychain-solutions.co, can you look up when that domain was registered and who the registrar is? I want to see if it's a legit long-standing domain or something freshly created."},{"title":"Competitive research on a new player","prompt":"I just heard about a competitor at vertexai-analytics.io — can you find out when their domain was registered and how old it is in days? Trying to gauge how long they've been around."}],"resultDescription":"A JSON object containing: the domain name queried, a verdict field (e.g. 'registered'), the domain age in days, the registrar name, the registrar URL (if available), and the ISO 8601 registration date timestamp.","failureModes":["Domain not found in RDAP — returns null or unregistered verdict","RDAP registry unavailable for certain TLDs — may return incomplete data","Invalid domain format input — request may fail or return error","Newly registered domains with propagation delays may show incomplete records","Some registrars redact registration dates for privacy — fields may be null"],"whenToPreferThis":"Choose this endpoint when you need quick, structured domain age and registrar data without setting up your own WHOIS/RDAP client. Ideal for fraud detection pipelines, email trust scoring, lead qualification, and competitive research. Prefer this over raw WHOIS lookups when you want a clean JSON response with a calculated age_days field ready to use in logic.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:00.640Z","isFirstParty":false}