Hunter API
Data Validation · Email
io is an email finding and verification platform that helps sales teams, recruiters, and marketers discover professional email addresses associated with any company domain and verify their deliverability. With over 4 million users globally, Hunter is the leading tool for B2B email prospecting, combining domain-level email discovery, individual email finding by name + company, multi-step email verification, and outreach campaign management in a single platform and REST API.
Hunter API Highlights
Hunter API is verified for developer integrations in Nigeria and across African markets, providing documented endpoints, sandbox testing, and developer support.
API Key (query parameter: ?api_key=YOUR_KEY)
Domain Search & Email Finder: 15 req/sec, 500 req/min. Email Verifier: 10 req/sec, 300 req/min.
Nigeria
Ghana
Kenya
AWSHunter API is best for:
Nigerian sales teams, recruiters, and outreach professionals who need to find and verify professional email addresses from company domains with a generous free tier and MCP server for AI-native workflows.
- Free:50 searches/month
- Starter:$34/month annual ($49 monthly)
- Growth:$73/month annual ($104 monthly)
- Business:$244/month annual ($349 monthly)
- Unified Credits system as of July 2025
Hunter API Core Features & Capabilities
Features Included
Not Supported
Required Access Documents for Hunter API
- Email RegistrationRequiredSign up at hunter.io with an email address. Free plan activates immediately 50 monthly searches, no credit card required.
Different Hunter API use cases
- Nigerian B2B Sales Prospecting:Use Hunter's Domain Search to find email addresses of Nigerian business decision-makers by entering a company domain, enabling targeted outreach for B2B sales and partnerships.
- Email Finder for Nigerian Contacts:Provide a Nigerian contact's name and company domain to Hunter's Email Finder API to locate their most likely professional email address, verified and formatted for immediate outreach.
- Pre-Send Email Verification:Validate email addresses in your Nigerian sales outreach list using Hunter's Email Verifier API before sending campaigns, eliminating hard bounces that damage your domain's sender reputation.
- AI-Powered Outreach Workflows:Use Hunter's official MCP server to build AI agent workflows that automatically find, verify, and enrich email contacts from Nigerian company domains via Claude or OpenAI-powered automation.
- Recruitment Email Discovery:Nigerian recruiters can use Hunter to find the professional email addresses of candidates working at specific companies by combining domain search with name-based email finder.