{"uid":"cap_curHYR43KeXE7FRAQ4amD","slug":"dkim-selector-ac-lookup-fa04f473","name":"DKIM Selector AC Lookup","description":"DKIM public key for selector \"ac\" of a domain: looks up ac._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the ac selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/ac?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"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":null,"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_OSFp8uUQ0fxSbSR2XtY_b","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":"Looks up and parses the DKIM public key for the 'ac' selector of a given domain via Cloudflare DoH, returning key metadata including type, length, testing flag, and revocation status.","exampleAgentPrompt":"Can you check the DKIM ac selector for example.com — I want to know if the key is valid, what type and length it is, and whether it's revoked or in testing mode?","exampleUseCases":[{"title":"Verify DKIM before email campaign","prompt":"We're about to send a big email campaign from example.com and I want to confirm the ac DKIM selector is properly set up and not revoked — can you check it?"},{"title":"Audit domain email authentication","prompt":"I'm doing a security audit of acmecorp.com — can you look up the ac DKIM selector and tell me the key type, length, and whether it's in testing mode or revoked?"},{"title":"Diagnose DKIM signing failures","prompt":"Emails signed with the ac selector for mybusiness.com are failing DKIM verification — can you look up the ac._domainkey record and tell me what's there, including whether the key might be empty or revoked?"}],"resultDescription":"Returns parsed DKIM record details for the ac selector including: the v= protocol version, k= key type (e.g. rsa), public key length in bits, whether the testing flag (t=y) is set, and whether the key is revoked (empty p= value). Confirms whether mail signed with the ac selector should verify successfully.","failureModes":["Domain does not have an ac._domainkey TXT record — returns not found or empty result","DNS resolution failure via Cloudflare DoH — network or upstream error","Malformed TXT record that cannot be parsed into DKIM fields","Domain input missing or invalid — request rejected","Empty p= tag indicating a revoked key — reported as revoked, not an error"],"whenToPreferThis":"Use this endpoint when you specifically need to inspect the 'ac' DKIM selector for a domain — for example when auditing email authentication configuration, troubleshooting DKIM verification failures for ac-signed mail, or checking revocation status. Prefer this over generic DNS TXT lookup endpoints when you need structured DKIM field parsing (v=, k=, key length, testing flag, revocation) rather than a raw DNS response.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:22.931Z","isFirstParty":false,"canonicalSlug":"dkim-selector-ac-lookup-fa04f473"}