--- title: Find And Verify Business Email Addresses And Build Lead... description: Hunter is an email finding, verification and B2B prospecting platform that exposes its features through an API. It can find email addresses tied to a company... canonical: https://daily.dev/posts/find-and-verify-business-email-addresses-and-build-lead-lists-with-hunter-o1nkr53om twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Find And Verify Business Email Addresses And Build Lead Lists With Hunter | daily.dev og:description: Hunter is an email finding, verification and B2B prospecting platform that exposes its features through an API. It can find email addresses tied to a company... og:url: https://daily.dev/posts/find-and-verify-business-email-addresses-and-build-lead-lists-with-hunter-o1nkr53om og:image: https://api.daily.dev/og/posts/O1nKr53Om.png og:image:alt: Find And Verify Business Email Addresses And Build Lead Lists With Hunter og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Find And Verify Business Email Addresses And Build Lead Lists With Hunter **[API Evangelist](https://daily.dev/sources/apievangelist)** · 5 min read · 0 upvotes · 0 comments ## Summary Hunter is an email finding, verification and B2B prospecting platform that exposes its features through an API. It can find email addresses tied to a company domain, predict and verify a named person's address, and enrich records with company and people details. The API also manages leads, lists and email outreach sequences, and Hunter runs its own MCP server for AI assistants. APIs.io catalogs 10 workflows combining these calls, such as searching a domain, verifying the top email and saving it as a lead. Hunter offers a free tier with self-serve signup. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How does Hunter's API prevent duplicate leads when saving contacts? Hunter's PUT /leads endpoint adds a new lead or updates the existing one if that email address is already saved, which avoids creating duplicate entries. This differs from POST /leads, which simply adds a new lead without that deduplication check. _Developers wiring up CRM sync logic can track API design patterns like this via daily.dev._ ### What API endpoints does Hunter provide for finding people's email addresses? Hunter offers GET /domain-search to find email addresses tied to a company's domain, GET /people/find to fill in details about a specific person, and GET /combined/find to retrieve both a person's and their company's details in one call. It also offers GET /discover/people to find people matching filters. _daily.dev helps developers comparing sales-data APIs keep up with endpoint-level changes._ ### Does Hunter support AI assistants through MCP for email prospecting tasks? Yes, Hunter runs its own MCP server, the connector standard AI assistants use to call external tools. This lets an AI assistant find contacts, save them as leads, and start outreach sequences directly through Hunter's API rather than requiring manual copying between tools. _Builders adding MCP connectors to their AI agents follow tool integrations like this on daily.dev._ ## Similar posts on daily.dev - [Launch HN: AgentMail \(YC S25\) – An API that gives agents their own email inboxes](https://daily.dev/posts/launch-hn-agentmail-yc-s25-an-api-that-gives-agents-their-own-email-inboxes-1q5qilhpm) · Hacker News · 2 upvotes · 0 comments - [Chrome Opens Trial for the Email Verification API: Letting Sites Verify Without Sending Emails](https://daily.dev/posts/chrome-opens-trial-for-the-email-verification-api-letting-sites-verify-without-sending-emails-a85510ngc) · InfoQ · 0 upvotes · 0 comments - [AgentMail raises $6M to build an email service for AI agents](https://daily.dev/posts/agentmail-raises-6m-to-build-an-email-service-for-ai-agents-wxkxkkzih) · TechCrunch · 1 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/find-and-verify-business-email-addresses-and-build-lead-lists-with-hunter-o1nkr53om) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Find And Verify Business Email Addresses And Build Lead Lists With Hunter","url":"https://daily.dev/posts/find-and-verify-business-email-addresses-and-build-lead-lists-with-hunter-o1nkr53om","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/find-and-verify-business-email-addresses-and-build-lead-lists-with-hunter-o1nkr53om"},"datePublished":"2026-10-30T22:25:45.508Z","dateModified":"2026-10-30T22:26:09.711Z","description":"Hunter is an email finding, verification and B2B prospecting platform that exposes its features through an API. 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