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Connect Hunter.io to ChatGPT or Claude

Use Hunter to find, check and act on email addresses without pasting them in one at a time. Leads can be verified before anyone writes to them, contacts can be looked up from a name and company domain, and campaign replies can be passed to your team. Describe what you want to your AI assistant, check what it will do, and it keeps running with your laptop closed.

Try asking

Create a ClickRuntime automation: every day at 7am, verify the emails of leads added to my Hunter list 'Q3 SaaS founders' since yesterday, and email me the ones that are undeliverable or risky.

Paste it into your assistant. It tells you what it will send or change before it runs live.

Build your own

Build any Hunter.io automation you can describe

The ideas above are ready-made starting points, not a fixed list. Describe what Hunter.io should do in your own words, with your conditions, other apps or an AI step, and your assistant writes it, tests it and runs it on ClickRuntime.
  • Your own rules

    Conditions, thresholds, filters and exceptions, written the way you'd explain them to a colleague.

  • Any number of apps

    One automation can read from one app and update several others. Over 248 apps are ready, and anything with an API works too.

  • AI where it helps

    Summaries, classification, extraction and drafts use ClickRuntime's built-in AI, with no extra key.

  • On a schedule or on each event

    Runs as often as every 5 minutes, or the moment an app sends an event, and keeps track of what it already handled.

For example, ask your assistant

Every day, take new company domains I add to a list, find the CEO's email with Hunter.io and only keep emails it marks as valid.

For each new row in my Google Sheet with a name and company domain, look up the email with Hunter.io and fill it in.

When a new lead lands in my Google Sheet, find their email with Hunter.io, verify it and send a short intro from Gmail if it is valid.

Works with

Hunter.io with the apps you already use

Hunter fills in and checks email addresses, but the lists and messages usually live somewhere else. Connecting it cleans the addresses in your sheets and inbox before you use them.

Hunter.io works with hundreds of other apps

Name any of them when you ask your assistant, and your automation connects them. Over 248 apps are ready to go, and anything with an API works too.

  • Slack
  • HubSpot
  • Pipedrive
  • Salesforce
  • Attio
  • Close
  • Airtable
  • Notion
  • lemlist
  • Instantly
  • Smartlead
  • Apollo.io
  • Typeform
  • Jotform
  • Outlook
  • LinkedIn
  • Zoho CRM

Beyond chat

Have Hunter.io work when you're not in the chat

Connecting Hunter.io to ChatGPT or Claude lets you ask about it while you chat. ClickRuntime handles the part that should happen on its own: checks on a schedule and actions on each new event, set up from the same chat and running after you close it.

Setup

Connect Hunter.io

You connect Hunter with the API key from your own Hunter dashboard. Every account has one, including free accounts.

Hunter.io

Email finder

  1. Sign in to Hunter and open the API keys page in your dashboard.
  2. Copy your key, or generate a new one.
  3. In the ClickRuntime dashboard, open Connections & secrets and save the key as a secret for Hunter. It is sent in the X-API-KEY header.

Good to know

Hunter.io limits that affect automations

  • Every lookup and verification uses credits from your Hunter plan. When they run out Hunter returns an error until your quota resets.
  • Email Verifier allows 10 requests per second and 300 per minute, so verifying a big list is spread over a few minutes.
  • Domain Search, Email Finder and enrichment allow 15 per second and 500 per minute. Discover allows 5 per second and 50 per minute.
  • Hunter doesn't push campaign replies, so reply alerts check your campaigns every 15 minutes.

FAQ

Questions about automating Hunter.io

What can ClickRuntime do with my Hunter key?
It can find emails by domain or by name, enrich and verify addresses, read your Hunter lists, and check your campaign recipients for replies.
Does it use my Hunter credits?
Yes. Each search or verification counts against your plan, just as it would in Hunter. A daily verification only checks leads added since the last run.
Does it work on a free Hunter account?
Yes, free accounts get an API key too. The number of lookups you can make is limited by your plan's credits.
How quickly do I hear about campaign replies?
Within about 15 minutes. The automation checks your Hunter campaigns on that schedule and posts any recipient whose status has changed to replied.
Do I need AI for Hunter automations?
No. Verification, lookups and reply alerts run without it. If you ask for personalised outreach drafts, that uses the AI that comes with every ClickRuntime plan, so you don't need your own AI key.
Is this a Hunter.io connector for ChatGPT or Claude?
Not for chatting with Hunter.io data. A chat connector lets your assistant read and change Hunter.io while you're in the conversation. ClickRuntime is for the work that should happen without you: you set up an automation from the chat once, and it keeps running on a schedule or on each Hunter.io event.

Tell your assistant what Hunter.io should do

Free plan. No credit card.