{"uid":"cap_hUKuWLbGYihoejtBWXBJq","slug":"dkim-selector-lookup-protonmail-3f3e0a8c","name":"DKIM Selector Lookup – ProtonMail","description":"DKIM public key for selector \"protonmail\" of a domain: looks up protonmail._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 protonmail selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/protonmail?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_An0hxLOGVY8DqRm-9gqES","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 'protonmail' selector of a given domain, confirming key type, length, testing flag, and revocation status.","exampleAgentPrompt":"Can you check if example.com has a valid ProtonMail DKIM key configured — I want to know the key type, length, and whether it's been revoked?","exampleUseCases":[{"title":"ProtonMail email deliverability audit","prompt":"We just set up ProtonMail for ourcompany.com — can you verify the protonmail DKIM selector is properly configured, not revoked, and tell me the key type and length?"},{"title":"Pre-migration email auth check","prompt":"Before we migrate email hosting, check whether acmecorp.com has a working ProtonMail DKIM selector and confirm whether mail signed with it would pass verification."},{"title":"Security audit for suspicious domain","prompt":"I think suspicious-domain.net might be impersonating a ProtonMail sender — can you look up their protonmail DKIM selector and tell me if the key is valid, revoked, or in test mode?"}],"resultDescription":"Returns parsed details of the protonmail._domainkey.<domain> TXT record: v= and k= tag values, key type (e.g. RSA), public-key bit length, whether the testing flag is set, and whether the key is revoked (empty p= field). Confirms whether mail signed with the protonmail selector will pass DKIM verification.","failureModes":["Domain does not have a protonmail._domainkey TXT record — returns not found or empty result","DNS resolution fails via Cloudflare DoH — network or timeout error","Domain is invalid or malformed — returns validation error","Record exists but p= is empty — key is revoked, flagged in response","Payment not attached or insufficient — returns 402 Payment Required"],"whenToPreferThis":"Use this endpoint when you specifically need to verify the ProtonMail DKIM selector (protonmail._domainkey) for a domain, as opposed to other selectors like 'google' or 'default'. Ideal for auditing ProtonMail-hosted email configurations, troubleshooting DKIM signing failures for ProtonMail senders, or checking revocation status of ProtonMail signing keys.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:12.904Z","isFirstParty":false,"canonicalSlug":"dkim-selector-lookup-protonmail-3f3e0a8c"}