{"uid":"cap_eg6LeLpQXx3aUOnTiyE2O","slug":"fhi-domain-change-evidence-api-933927a3","name":"FHI Domain Change Evidence API","description":"Stateful remote-MCP change evidence, payable per call with x402 Base USDC.","url":"https://polished-truth-c514.fhi-llc-1118.workers.dev/api/v1/domain-change-evidence?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","description":"Public DNS name, such as example.com"}}},"responseSchema":{"type":"json","example":{"domain":"example.com","changed":true,"evidence":{"a":["93.184.216.34"],"caa":[],"aaaa":[],"certificates":[]},"monitoring":{"state":"change_detected","signals":["dns_a_changed"]},"firstObservation":false}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Asrb_PQvjUASPc3JMWfel","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves evidence of historical ownership or configuration changes for a given domain name","exampleAgentPrompt":"Can you pull up any evidence of ownership or configuration changes for the domain 'example.com' — I want to know if it changed hands or had major DNS changes recently?","exampleUseCases":[{"title":"Pre-acquisition domain due diligence","prompt":"Before we buy the domain 'acmecorp.io', can you check if there's any evidence it changed ownership or had unusual configuration changes recently? I want to make sure we're not buying something with a sketchy history."},{"title":"Security research on suspicious domain","prompt":"I'm investigating a phishing campaign and one of the domains involved is 'secure-login-bank.net' — can you find any evidence of when it changed hands or how its DNS setup changed over time?"},{"title":"Brand protection monitoring","prompt":"Someone might be squatting on a domain similar to ours — can you pull evidence of any recent ownership or registrar changes for 'my-brandname.com' so I can figure out what's going on?"}],"resultDescription":"Returns structured evidence of historical changes associated with the given domain, which may include ownership transfer records, DNS configuration changes, registrar change events, or other signals indicating the domain's history has been altered. Useful for due diligence, security research, and brand protection.","failureModes":["Domain not found or no evidence available — may return empty results","Invalid domain format — returns validation error","Payment failure via x402 — request rejected before processing","Network or worker timeout — transient error requiring retry","Domain with no recorded change history — empty or minimal response"],"whenToPreferThis":"Choose this endpoint when you need to investigate whether a specific domain has changed ownership, DNS configuration, or registrar over time — particularly for security research, pre-acquisition due diligence, phishing investigation, or brand protection. It is purpose-built for domain change evidence retrieval and is priced per-call at $0.02 USDC via x402 on Base mainnet, making it suitable for autonomous agent workflows that need on-demand domain intelligence without subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T00:38:38.641Z","isFirstParty":false,"canonicalSlug":"fhi-domain-change-evidence-api-933927a3"}