Hunter
Hunter is an email finding and verification service that helps find professional email addresses associated with a domain and verify email deliverability.
Hunter publishes 12 APIs on the APIs.io network, including Account API, Campaigns API, Combined Enrichment API, and 9 more. Tagged areas include Contact Discovery, Email, Email Verification, Lead Generation, and Prospecting.
The Hunter catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.
Hunter’s developer surface includes authentication, developer portal, documentation, pricing, engineering blog, signup flow, changelog, and 27 more developer resources.
Kin Score
APIs 12
Individual APIs this provider publishes, each with its own machine-readable definition.
Hunter Account API
Retrieve account information and usage statistics.
Hunter Campaigns API
Manage email sequences and recipients.
Hunter Combined Enrichment API
Merge person and company enrichment for a single email address.
Hunter Company Enrichment API
Enrich company information linked to a domain name.
Hunter Discover API
Find companies matching criteria using natural language or filters.
Hunter Domain Search API
Search for email addresses associated with a domain.
Hunter Email Count API
Count email addresses found for a domain.
Hunter Email Enrichment API
Enrich personal information linked to an email or LinkedIn profile.
Hunter Email Finder API
Find the most likely email address for a person at a company.
Hunter Email Verifier API
Verify the deliverability of an email address.
Hunter Leads API
Manage leads stored in Hunter.
Hunter Leads Lists API
Manage leads list collections in Hunter.
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Postman Collections 1
Ready-to-run Postman collections for exercising this provider's APIs.
Hunter API
POSTMANOpen Collections 1
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Hunter API
OPEN COLLECTIONArazzo Workflows 10
Multi-step API workflows described with the Arazzo specification.
Hunter Account-Guarded Domain Search
Check remaining search quota before running a domain search.
ARAZZOHunter Combined Enrich and Upsert Lead
Combine person and company enrichment for an email, then upsert it as a lead.
ARAZZOHunter Discover, Search, and Count
Discover a target company, search its domain, and count its emails.
ARAZZOHunter Domain Search to Build a Verified List
Search a domain, create a list, verify the top email, and upsert it as a lead.
ARAZZOHunter Domain Search, Find, and Verify
Search a domain for emails, find a named person's address, then verify it.
ARAZZOHunter Enrich, Verify, and Create Lead
Enrich a person from an email, verify the address, and save a verified lead.
ARAZZOHunter Find, Verify, and Add Campaign Recipient
Find a person's email, verify it, and add it to a campaign when valid.
ARAZZOHunter Find, Verify, and Create Lead
Find a person's email, verify it, and only save a lead when it is valid.
ARAZZOHunter Verify and Add to Campaign
Verify an email, add it to a campaign when valid, then start the campaign.
ARAZZOScroll for all 10
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
MCP Server
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Hunter Plans Pricing
PLANSRate Limits 1
Documented rate limits and quota policies.
Hunter Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Hunter Finops
FINOPSFeatures 7
Notable capabilities this provider offers.
Domain Search
Find all email addresses associated with a domain name along with confidence scores and sources.
Email Finder
Generate the most likely email address for a person given their name and company domain.
Email Verification
Verify the deliverability and validity of email addresses with detailed status reporting.
Lead Management
Store, organize, and manage prospect leads with lists, tags, and CRM-like contact management.
Email Campaigns
Create and manage automated email outreach sequences with recipient tracking and scheduling.
Data Enrichment
Enrich email addresses and domains with personal, company, and firmographic data points.
Company Discovery
Find companies matching ideal customer profiles using natural language queries and advanced filters.
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Semantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Hunter Context
JSON-LDSpectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Hunter API Rules
SPECTRALHunter API Rules
SPECTRALJSON Schema 41
Standalone JSON Schema definitions for this provider's data models.
AccountResult
JSON SCHEMAAccountResult
JSON SCHEMACampaignRecipient
JSON SCHEMACampaign
JSON SCHEMACampaignRecipient
JSON SCHEMACompanyEnrichment
JSON SCHEMACompanyGeoLocation
JSON SCHEMACompanyEnrichment
JSON SCHEMACompanyGeoLocation
JSON SCHEMADiscoverRequest
JSON SCHEMADiscoverResult
JSON SCHEMADiscoverRequest
JSON SCHEMADiscoverResult
JSON SCHEMADomainEmail
JSON SCHEMADomainSearchResult
JSON SCHEMADomainEmail
JSON SCHEMADomainSearchResult
JSON SCHEMAEmailCountResult
JSON SCHEMAEmailFinderResult
JSON SCHEMAEmailVerifierResult
JSON SCHEMAEmailCountResult
JSON SCHEMAEmailFinderResult
JSON SCHEMAEmailVerifierResult
JSON SCHEMAError
JSON SCHEMAGeoLocation
JSON SCHEMAGeoLocation
JSON SCHEMALeadInput
JSON SCHEMALead
JSON SCHEMALeadInput
JSON SCHEMALeadsList
JSON SCHEMALeadsList
JSON SCHEMAMeta
JSON SCHEMAPaginationMeta
JSON SCHEMAPaginationMeta
JSON SCHEMAPersonEnrichment
JSON SCHEMAPersonEnrichment
JSON SCHEMASource
JSON SCHEMAUsageCounter
JSON SCHEMAUsageCounter
JSON SCHEMAVerificationStatus
JSON SCHEMAVerificationStatus
JSON SCHEMAScroll for all 41
JSON Structure 24
JSON Structure definitions describing this provider's data shapes.
Hunter Account Result Structure
JSON STRUCTUREHunter Campaign Recipient Structure
JSON STRUCTUREHunter Campaign Structure
JSON STRUCTUREHunter Company Enrichment Structure
JSON STRUCTUREHunter Company Geo Location Structure
JSON STRUCTUREHunter Discover Request Structure
JSON STRUCTUREHunter Discover Result Structure
JSON STRUCTUREHunter Domain Email Structure
JSON STRUCTUREHunter Domain Search Result Structure
JSON STRUCTUREHunter Email Count Result Structure
JSON STRUCTUREHunter Email Finder Result Structure
JSON STRUCTUREHunter Email Verifier Result Structure
JSON STRUCTUREHunter Error Structure
JSON STRUCTUREHunter Geo Location Structure
JSON STRUCTUREHunter Lead Input Structure
JSON STRUCTUREHunter Lead Structure
JSON STRUCTUREHunter Leads List Structure
JSON STRUCTUREHunter Meta Structure
JSON STRUCTUREHunter Pagination Meta Structure
JSON STRUCTUREHunter Person Enrichment Structure
JSON STRUCTUREHunter Source Structure
JSON STRUCTUREHunter Structure
JSON STRUCTUREHunter Usage Counter Structure
JSON STRUCTUREHunter Verification Status Structure
JSON STRUCTUREScroll for all 24
Examples 23
Example request and response payloads for these APIs.
Hunter Campaign Example
EXAMPLEHunter Domain Email Example
EXAMPLEHunter Error Example
EXAMPLEHunter Geo Location Example
EXAMPLEHunter Lead Example
EXAMPLEHunter Lead Input Example
EXAMPLEHunter Leads List Example
EXAMPLEHunter Meta Example
EXAMPLEHunter Source Example
EXAMPLEHunter Usage Counter Example
EXAMPLEScroll for all 23
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers build with this provider.
Sales Prospecting
Find and verify email addresses for sales outreach by searching company domains and building prospect lists.
Lead Qualification
Enrich leads with company and personal data to qualify prospects and prioritize outreach efforts.
Email List Cleaning
Verify large email lists to reduce bounce rates and improve email deliverability.
Account-Based Marketing
Discover key contacts at target accounts using domain search and build targeted outreach campaigns.
Recruitment Outreach
Find professional email addresses for passive candidates at target companies for recruitment campaigns.
Integrations 6
Pre-built integrations with other platforms and tools.
Salesforce
Push verified leads and enriched contacts directly to Salesforce CRM for pipeline management.
HubSpot
Sync leads and contact data with HubSpot CRM for unified sales and marketing workflows.
Pipedrive
Export leads to Pipedrive CRM with enriched contact and company information.
Zapier
Connect Hunter with thousands of apps through Zapier for automated lead processing workflows.
Google Sheets
Export domain search results and verified emails directly to Google Sheets for analysis.
Zoho CRM
Integrate lead data with Zoho CRM for end-to-end sales pipeline management.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 11
Pagination, idempotency, versioning, errors, and events
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Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API