{"uid":"cap_QQkb-3LxbTbh_dSTXtJU9","slug":"agentshelf-dkim-s1-dns-txt-lookup-d699c0fc","name":"AgentShelf DKIM S1 DNS TXT Lookup","description":"Call when an agent needs TXT at s1._domainkey.{hostname}. A different selector is a different DNS name. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/dns-txt-dkim-s1 first.","url":"https://agentshelf.syntexa.ch/v1/dns-txt-dkim-s1?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"hostname":{"type":"string","examples":["example.com"],"maxLength":253,"minLength":1,"description":"Public DNS hostname such as example.com. Not a URL, not an IP literal, and not a private name."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5u1dL-FjSlXNnvMOQHaJU","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up the DKIM TXT record at the s1._domainkey selector for a given hostname via DNS","exampleAgentPrompt":"Look up the DKIM TXT record at the s1._domainkey selector for example.com and tell me what it contains.","exampleUseCases":[{"title":"Email deliverability audit","prompt":"Check the DKIM TXT record for the s1 selector on mailchimp.com — I want to see the public key and confirm DKIM is configured."},{"title":"Domain onboarding verification","prompt":"Fetch the s1._domainkey DKIM TXT record for acme-corp.io so I can confirm their DKIM setup is in place before we send on their behalf."},{"title":"Email security debugging","prompt":"Pull the DKIM TXT record at s1._domainkey for newsletter.example.net — I'm trying to figure out why our emails are failing DKIM validation."}],"resultDescription":"Returns the raw DNS TXT record value found at s1._domainkey.{hostname}, typically containing the DKIM public key and policy parameters (e.g. v=DKIM1; k=rsa; p=...).","failureModes":["Hostname does not exist in DNS — NXDOMAIN or empty response","No TXT record at s1._domainkey for the given hostname — returns null or empty","Invalid or malformed hostname input — validation error","DNS timeout or resolver unavailability — network error response","DKIM record exists under a different selector (not s1) — record not found at this path"],"whenToPreferThis":"Use this endpoint when you specifically need the s1 DKIM selector TXT record for a hostname and want a direct, low-cost DNS lookup without running your own resolver. Prefer the free sandbox endpoint /v1/sandbox/dns-txt-dkim-s1 first; fall back to this paid endpoint when the sandbox is unavailable or rate-limited. Do not use this for other DKIM selectors (e.g. s2, google, default) — those are different DNS names requiring different endpoints.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T06:47:45.593Z","isFirstParty":false,"canonicalSlug":"agentshelf-dkim-s1-dns-txt-lookup-d699c0fc"}