{"uid":"cap_gpMXRZsWm4gA39IjqG3xU","slug":"dkim-selector-sendgrid-e09e9761","name":"dkim-selector-sendgrid","description":"DKIM public key for selector \"sendgrid\" of a domain: looks up sendgrid._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 sendgrid selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/sendgrid?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_eeWjdUgHJwu2wrpKiytMm","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 'sendgrid' selector of a given domain, confirming email signing validity via Cloudflare DoH.","exampleAgentPrompt":"Can you check whether example.com has a valid, non-revoked DKIM key for the sendgrid selector — I want to confirm SendGrid email signing is properly set up for that domain?","exampleUseCases":[{"title":"Verify SendGrid email auth before campaign","prompt":"We're about to send a big email campaign through SendGrid for acme.com — can you check if the sendgrid DKIM selector TXT record is properly configured and not revoked?"},{"title":"Debug email deliverability issue","prompt":"Emails sent via SendGrid from mybusiness.io keep landing in spam — can you look up the sendgrid._domainkey TXT record for mybusiness.io and tell me if the DKIM key is valid, what the key length is, and whether it has the testing flag set?"},{"title":"Audit new client domain setup","prompt":"I just onboarded a client at clientbrand.net using SendGrid — please check their sendgrid DKIM selector to make sure the public key is present, not empty, and looks correct before we go live."}],"resultDescription":"Returns parsed details of the sendgrid._domainkey.<domain> TXT record including: DKIM version (v=), key type (k=), public key, public-key bit length, whether the testing flag is set, and whether the key is revoked (empty p= field). Confirms overall whether email signed with the sendgrid selector will verify correctly.","failureModes":["Domain not found or does not exist — DNS NXDOMAIN response","No sendgrid._domainkey TXT record present for the domain — record missing","Empty p= field indicating a revoked/disabled DKIM key","Malformed TXT record that cannot be parsed as a valid DKIM record","DNS resolution failure via Cloudflare DoH — upstream timeout or error","Payment not completed — x402 payment required before result is returned"],"whenToPreferThis":"Use this endpoint when you specifically need to check the SendGrid DKIM selector for a domain, as opposed to other selectors (e.g. namecheap, google). It is ideal for verifying SendGrid email deliverability configuration, auditing domain DNS before launching campaigns, or diagnosing DKIM-related email authentication failures for domains using SendGrid as their email service provider.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T18:59:39.355Z","isFirstParty":false,"canonicalSlug":"dkim-selector-sendgrid-e09e9761"}