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Email Finder Hunter Agent Skill

Email finder and verifier - find emails, verify deliverability, discover companies

2k tokens
context cost
the whole folder, loaded on every use
2
files
instructions only
0
copies elsewhere
how many repositories repackaged it
1086
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository
npx skills add https://github.com/gooseworks-ai/goose-skills --skill email-finder-hunter

What comes with it

294 bytes besides the instruction
skill.meta.json

The instruction itself

14 sections, as written by the author

Hunter - Email Intelligence

Setup

Read your credentials from ~/.gooseworks/credentials.json:

export GOOSEWORKS_API_KEY=$(python3 -c "import json;print(json.load(open('$HOME/.gooseworks/credentials.json'))['api_key'])")
export GOOSEWORKS_API_BASE=$(python3 -c "import json;print(json.load(open('$HOME/.gooseworks/credentials.json')).get('api_base','https://api.gooseworks.ai'))")

If ~/.gooseworks/credentials.json does not exist, tell the user to run: npx gooseworks login

All endpoints use Bearer auth: -H "Authorization: Bearer $GOOSEWORKS_API_KEY"

Find email addresses, verify deliverability, and discover companies.

Capabilities

  • Combined Enrichment: Get both person AND company information from an email address in a single request
  • Email Enrichment: Get detailed person information from an email address - name, location, employment, social profiles
  • Email Count: Get count of email addresses we have for a domain, broken down by department and seniority
  • Discover Companies: Find companies matching criteria using filters or natural language
  • Company Enrichment: Get detailed company information from a domain - industry, description, location, size, tech stack, funding
  • Domain Search: Find all email addresses for a domain
  • Email Finder: Find the most likely email address for a person given their name and company domain
  • Email Verifier: Verify if an email address is deliverable

Usage

Combined Enrichment

Get both person AND company information from an email address in a single request.

Parameters:

  • email* (string) - Email address to enrich
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/combined/find","query":{"email":"[email protected]"}}'

Email Enrichment

Get detailed person information from an email address - name, location, employment, social profiles.

Parameters:

  • email (string) - Email address to enrich
  • linkedin_handle (string) - LinkedIn handle to enrich
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/people/find","query":{"email":"[email protected]"}}'

Email Count

Get count of email addresses we have for a domain, broken down by department and seniority. FREE endpoint.

Parameters:

  • domain (string) - Domain to count emails for
  • company (string) - Company name (domain preferred)
  • type (string) - Filter: personal or generic
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/email-count","query":{"domain":"google.com"}}'

Discover Companies

Find companies matching criteria using filters or natural language. Returns up to 100 companies per request. FREE endpoint.

Parameters:

  • query (string) - Natural language search (e.g. Companies in Europe in Tech)
  • headquarters_location (object) - Filter by HQ location
  • industry (object) - Filter by industry
  • headcount (array) - Filter by employee count ranges
  • limit (integer) - Max results (default 100)
  • offset (integer) - Skip N results for pagination
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/discover","body":{"query":"AI startups in San Francisco"}}'

Company Enrichment

Get detailed company information from a domain - industry, description, location, size, tech stack, funding.

Parameters:

  • domain* (string) - Company domain to enrich (e.g. hunter.io)
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/companies/find","query":{"domain":"anthropic.com"}}'

Find all email addresses for a domain. Returns emails with sources, confidence scores, and verification status.

Parameters:

  • domain* (string) - Domain to search (e.g. stripe.com)
  • limit (integer) - Max emails to return (default 10)
  • offset (integer) - Skip N emails
  • type (string) - Filter: personal or generic
  • seniority (string) - Filter: junior, senior, or executive
  • department (string) - Filter by department (sales, marketing, etc)
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/domain-search","query":{"domain":"stripe.com"}}'

Email Finder

Find the most likely email address for a person given their name and company domain.

Parameters:

  • domain (string) - Company domain (e.g. reddit.com)
  • company (string) - Company name (domain preferred)
  • first_name (string) - Person first name
  • last_name (string) - Person last name
  • full_name (string) - Full name (if first/last not available)
  • linkedin_handle (string) - LinkedIn profile handle
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/email-finder","query":{"domain":"openai.com","first_name":"Sam","last_name":"Altman"}}'

Email Verifier

Verify if an email address is deliverable. Returns status (valid, invalid, accept_all, webmail, disposable, unknown).

Parameters:

  • email* (string) - Email address to verify
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/run \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/email-verifier","query":{"email":"[email protected]"}}'

Use Cases

  • Sales Outreach: Find verified emails at target companies
  • Lead Generation: Build email lists by domain
  • Email Validation: Clean lists before campaigns
  • Company Research: Find companies matching criteria
  • Contact Enrichment: Get full profiles from emails

Discover More

For full endpoint details and parameters:

curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/search \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt":"hunter API endpoints"}' List all endpoints
curl -s -X POST $GOOSEWORKS_API_BASE/v1/proxy/orthogonal/details \
  -H "Authorization: Bearer $GOOSEWORKS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"api":"hunter","path":"/v2/combined/find"}'   # Get endpoint details

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How to use it

Copy the folder

Take gooseworks-ai/email-finder-hunter from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.

Install what it needs

The instructions reference npx. Without those the skill loads but fails at the first command.