Hunter

API

Domain search, professional email finder & verifier API

Overview

The Hunter API offers RESTful endpoints for domain search (retrieve emails linked to a domain), professional email finder (find emails via name & company), author finder (locate authors using article URLs), and email verifier (check deliverability). Responses are JSON-formatted, including confidence scores, source URLs, and contact metadata. Use cases include sales lead generation (building targeted lists), content marketing outreach (finding guest post authors), contact list cleaning (reducing bounces), and CRM data enrichment. It supports API key authentication and batch requests, suitable for small projects and enterprise workflows.

Example Integration (JavaScript)

script.js JS


fetch('https://hunter.io/api')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful
JSON support
API key auth
Batch requests
Confidence scoring

Frequently Asked Questions

? Is Hunter API free to use?

Yes, it has a free tier with limited monthly requests. Paid plans unlock higher limits and advanced features like batch verification.

? Does it require an API Key?

Yes, all requests need a valid API key from the Hunter.io dashboard after signing up.

? What is the response format?

All responses are JSON-formatted, including fields like email address, confidence score, source URLs, and contact details.

Top Alternatives

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Tool Info

Pricing Freemium

Category Development

Platform Public API

Pros

⊕ Easy integration
⊕ Multi-functional endpoints
⊕ High accuracy
⊕ Batch operation capability

Cons

⊖ Rate limited across tiers
⊖ Free tier has strict caps
⊖ No XML option
⊖ Advanced features require premium plans