{"id":"b55071b1-6a5d-4b05-ac8e-b3964fce934c","shortId":"UtdLnY","kind":"mpp","title":"Find a person's professional email address by name and company domain, pay-per-call via MPP.","tagline":"Find a person's professional email address by name and company domain, pay-per-call via MPP.","description":"The Hunter Email Finder endpoint, served through the Locus MPP (Micropayment Protocol) gateway, locates a professional email address for a specific person given their name and a company domain (or company name). It is one of eight Hunter.io endpoints available through this gateway, which also includes domain search, email verification, email/company enrichment, company discovery, combined enrichment, and email count.\n\nThis specific endpoint (`/hunter/email-finder`) accepts a POST request with parameters such as `domain` or `company`, `first_name`, `last_name`, `full_name`, or `linkedin_handle`. An optional `max_duration` parameter (3–20 seconds) controls how long the service will spend searching. The endpoint is priced at 13,000 base units of pathUSD (6 decimals), which works out to $0.013 per request, settled on Tempo L2. Payment is handled via the MPP charge intent — each call is a one-shot micropayment.\n\nThe gateway is operated by Locus (paywithlocus.com) and proxies requests to the underlying Hunter.io API. Full Hunter API documentation is available at hunter.io/api-documentation/v2, and Locus-specific LLM integration docs are referenced at beta.paywithlocus.com/mpp/hunter.md. Note that the probe returned 404 on HEAD/GET; the endpoint is POST-only, which is consistent with the OpenAPI spec. No response schema examples are provided in the spec.","tags":["email","verification","enrichment","outreach"],"capabilities":["email-finder","person-lookup","domain-based-search","linkedin-handle-lookup","micropayment-per-call","tempo-l2-settlement","post-only-endpoint"],"categories":["data","search"],"synonyms":["email lookup","find email by name","hunter.io email finder","professional email search","business email lookup","contact finder","email discovery","person email search"],"warnings":["Probe returned 404 on HEAD and GET; endpoint is POST-only per the OpenAPI spec, so liveness could not be confirmed via probe alone.","No response schema or example responses are documented in the OpenAPI spec.","Currency address 0x20c000000000000000000000b9537d11c60e8b50 is assumed to be pathUSD with 6 decimals based on the Tempo/Locus convention; this is not explicitly confirmed in the spec.","Crawled pages all returned 404 JSON errors; no supplementary documentation was retrievable from the gateway itself."],"endpointUrl":"https://hunter.mpp.paywithlocus.com/hunter/email-finder","protocol":"mpp","transport":"http","auth":{"type":"mpp","details":{"realm":"hunter.mpp.paywithlocus.com","intent":"charge","method":"tempo","service_methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}}}},"qualityScore":"0.550","qualityRationale":"The OpenAPI spec is well-structured with clear request schemas and pricing metadata for all eight endpoints. However, no response schema or example responses are provided, the probe returned 404 because it only tried HEAD/GET on a POST-only endpoint (so liveness is not confirmed but plausible), and crawled pages yielded no additional 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'/hunter/email-finder':99 '/mpp/hunter.md.':213 '0.013':153 '000':142 '13':141 '20':126 '3':125 '404':219 '6':147 'accept':100 'address':7,25,54 'also':81 'api':190,193 'avail':76,196 'base':143 'beta.paywithlocus.com':212 'beta.paywithlocus.com/mpp/hunter.md.':211 'business email lookup' 'call':16,34,169 'charg':166 'combin':91 'compani':11,29,64,67,89,110 'consist':230 'contact finder' 'control':128 'count':95 'decim':148 'discoveri':90 'doc':207 'document':194 'domain':12,30,65,83,108 'domain-based-search' 'durat':123 'eight':73 'email':6,24,39,53,85,94 'email discovery' 'email lookup' 'email-finder' 'email/company':87 'endpoint':41,75,98,137,223 'enrich':88,92 'exampl':238 'find':1,19 'find email by name' 'finder':40 'first':111 'full':115,191 'gateway':49,79,177 'given':59 'handl':119,162 'head/get':221 'hunter':38,192 'hunter.io':74,189,199 'hunter.io email finder' 'hunter.io/api-documentation/v2,':198 'includ':82 'integr':206 'intent':167 'l2':159 'last':113 'linkedin':118 'linkedin-handle-lookup' 'llm':205 'locat':50 'locus':45,181,203 'locus-specif':202 'long':130 'max':122 'micropay':47,175 'micropayment-per-call' 'mpp':18,36,46,165 'name':9,27,61,68,112,114,116 'note':214 'one':71,173 'one-shot':172 'openapi':233 'oper':179 'option':121 'paramet':105,124 'pathusd':146 'pay':14,32 'pay-per-cal':13,31 'payment':160 'paywithlocus.com':182 'per':15,33,154 'person':3,21,58 'person email search' 'person-lookup' 'post':102,226 'post-on':225 'post-only-endpoint' 'price':139 'probe':217 'profession':5,23,52 'professional email search' 'protocol':48 'provid':240 'proxi':184 'referenc':209 'request':103,155,185 'respons':236 'return':218 'schema':237 'search':84,135 'second':127 'serv':42 'servic':132 'settl':156 'shot':174 'spec':234,243 'specif':57,97,204 'spend':134 'tempo':158 'tempo-l2-settlement' 'under':188 'unit':144 'verif':86 'via':17,35,163 'work':150","prices":[{"id":"2a023e93-d875-40c4-b6ab-21da80c55c5c","listingId":"b55071b1-6a5d-4b05-ac8e-b3964fce934c","amountUsd":"0.013","unit":"per_call","nativeCurrency":"pathUSD","nativeAmount":"13000","chain":"tempo","payTo":null,"paymentMethod":"mpp-tempo","isPrimary":true,"details":{"realm":"hunter.mpp.paywithlocus.com","intent":"charge","method":"tempo","dynamic":false,"decimals":6,"unit_type":"request","amount_hint":null,"raw_payment":{"amount":"13000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"unitType":"request","description":"Email Finder"},"asset_contract":"0x20c000000000000000000000b9537d11c60e8b50"},"createdAt":"2026-04-18T20:01:10.117Z"}],"sources":[{"listingId":"b55071b1-6a5d-4b05-ac8e-b3964fce934c","source":"mpp_dev","sourceId":"hunter:POST:/hunter/email-finder","sourceUrl":"https://mpp.dev/api/services","isPrimary":true,"firstSeenAt":"2026-04-18T20:01:10.117Z","lastSeenAt":"2026-04-22T02:45:11.283Z"}],"details":{"listingId":"b55071b1-6a5d-4b05-ac8e-b3964fce934c","quickStartSnippet":"curl -X POST https://hunter.mpp.paywithlocus.com/hunter/email-finder \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"domain\": \"stripe.com\", \"first_name\": \"John\", \"last_name\": \"Collison\"}'","exampleRequest":{"domain":"stripe.com","last_name":"Collison","first_name":"John"},"exampleResponse":null,"schema":{"path":"/hunter/email-finder","method":"POST","payment":{"amount":"13000","intent":"charge","method":"tempo","currency":"0x20c000000000000000000000b9537d11c60e8b50","decimals":6,"unitType":"request","description":"Email Finder"},"description":"Email Finder"},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Email Finder endpoint accepts domain, company, first_name, last_name, full_name, linkedin_handle, and max_duration parameters","source_url":"https://hunter.mpp.paywithlocus.com"},{"claim":"Email Finder is priced at 13000 base units settled via Tempo L2 with charge intent","source_url":"https://hunter.mpp.paywithlocus.com"},{"claim":"Full Hunter API documentation is available at hunter.io/api-documentation/v2","source_url":"https://hunter.io/api-documentation/v2"},{"claim":"Locus-specific LLM docs referenced at beta.paywithlocus.com/mpp/hunter.md","source_url":"https://beta.paywithlocus.com/mpp/hunter.md"}],"useCases":["Finding a specific person's work email before cold outreach","Enriching a CRM contact list with verified email addresses","Automating lead generation pipelines that need per-person email discovery","Looking up emails via LinkedIn handle when domain is unknown","Agent-driven sales prospecting with pay-per-lookup billing"],"bestFor":["Sales and outreach teams needing individual email addresses on demand","AI agents that need programmatic, pay-per-call email finding without API key management","Developers integrating email discovery into automated workflows via micropayments"],"notFor":["Bulk email list purchases (this is a per-person lookup, not a bulk export)","Free-tier or no-cost email lookups — every call costs $0.013","Email marketing compliance or opt-in verification (use the email-verifier endpoint instead)"],"kindDetails":{"docs":{"llmsTxt":"https://paywithlocus.com/mpp/hunter.md","homepage":"https://hunter.io/api-documentation/v2"},"tags":["email","verification","enrichment","outreach"],"realm":"hunter.mpp.paywithlocus.com","status":"active","methods":{"tempo":{"assets":["0x20c000000000000000000000b9537d11c60e8b50"],"intents":["charge"]}},"provider":{"url":"https://hunter.io","name":"Hunter"},"categories":["data"],"service_id":"hunter","integration":"third-party","service_name":"Hunter","service_description":"Email finding, verification, and company enrichment for outreach and lead generation."},"updatedAt":"2026-04-22T02:45:11.283Z"}}