{"uid":"cap_i0lqD4nD3y7RzXjpNRqZu","slug":"is-email-hosted-by-sparkpost-ec999f85","name":"is-email-hosted-by-sparkpost","description":"Is the domain's email hosted by sparkpost? Looks up the MX records (Cloudflare DoH) and matches them against sparkpost's mail-exchanger patterns, returning yes/no, the MX hosts and which matched. Provider detection for deliverability, sales and migration work. $0.01 per lookup.","url":"https://email.intel.rallylive.ca/email/hosted-by/sparkpost?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_X88LkIMjWlZ07AOctm-vW","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":"Checks whether a domain's email is hosted by SparkPost by looking up its MX records via Cloudflare DoH and matching against SparkPost mail-exchanger patterns","exampleAgentPrompt":"Can you check if acme.com's email is hosted by SparkPost? I need to know their MX records and whether any match SparkPost's mail-exchanger patterns.","exampleUseCases":[{"title":"Sales prospecting email stack detection","prompt":"I'm about to reach out to globex.com about switching email providers — can you check if they're currently on SparkPost so I can tailor my pitch?"},{"title":"Deliverability migration audit","prompt":"Before we migrate clients off SparkPost, can you confirm that clientdomain.com is actually hosted by SparkPost and show me which MX records matched?"},{"title":"Competitor intelligence for email tooling","prompt":"I'm building a list of companies using SparkPost — can you check whether techcorp.io's email is hosted by SparkPost based on their MX records?"}],"resultDescription":"Returns a yes/no answer indicating whether the domain's email is hosted by SparkPost, along with the full list of MX hosts found via Cloudflare DNS-over-HTTPS and the specific MX records that matched SparkPost's known mail-exchanger patterns.","failureModes":["Domain has no MX records — returns no match with empty MX host list","DNS lookup failure via Cloudflare DoH — network or timeout error","Invalid or malformed domain name input — request rejected","Domain uses SparkPost-adjacent infrastructure not matching known patterns — false negative","Payment not processed — 402 response, no result returned"],"whenToPreferThis":"Use this endpoint when you need a quick, low-cost ($0.01) programmatic check of whether a specific domain routes its email through SparkPost, particularly for sales prospecting, deliverability auditing, or ESP migration workflows. Prefer this over general MX lookup tools when you specifically need SparkPost pattern-matching logic applied automatically.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-24T12:46:39.772Z","isFirstParty":false,"canonicalSlug":"is-email-hosted-by-sparkpost-ec999f85"}