Hunter · Arazzo Workflow

Hunter Find, Verify, and Add Campaign Recipient

Version 1.0.0

Find a person's email, verify it, and add it to a campaign when valid.

1 workflow 3 source APIs 1 provider
View Spec View on GitHub Contact DiscoveryEmailEmail VerificationLead GenerationProspectingSales IntelligenceArazzoWorkflows

Provider

hunter

Workflows

find-verify-add-recipient
Find an email, verify it, and add it as a campaign recipient when valid.
Finds a person's email at a domain, verifies it, and adds the verified address as a recipient of the specified campaign only when it is valid.
3 steps inputs: apiKey, campaignId, domain, firstName, lastName outputs: email, verificationStatus
1
findEmail
Find the most likely email for the named person at the domain along with a confidence score.
2
verifyEmail
Verify the deliverability of the found email and branch: add it to the campaign when valid, otherwise end without adding.
3
addRecipient
Add the verified email address as a recipient of the specified campaign.

Source API Descriptions

Arazzo Workflow Specification

Raw ↑
arazzo: 1.0.1
info:
  title: Hunter Find, Verify, and Add Campaign Recipient
  summary: Find a person's email, verify it, and add it to a campaign when valid.
  description: >-
    Feeds an outreach campaign with freshly found and verified contacts. The
    flow finds the most likely email for a named person at a domain, verifies
    its deliverability, and branches: a valid address is added as a recipient
    to the campaign while any other status ends the flow. Each step spells out
    its request inline, including the api_key query parameter, so the flow can
    be read and executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: campaignsApi
  url: ../openapi/hunter-campaigns-api-openapi.yml
  type: openapi
- name: emailFinderApi
  url: ../openapi/hunter-email-finder-api-openapi.yml
  type: openapi
- name: emailVerifierApi
  url: ../openapi/hunter-email-verifier-api-openapi.yml
  type: openapi
workflows:
- workflowId: find-verify-add-recipient
  summary: Find an email, verify it, and add it as a campaign recipient when valid.
  description: >-
    Finds a person's email at a domain, verifies it, and adds the verified
    address as a recipient of the specified campaign only when it is valid.
  inputs:
    type: object
    required:
    - apiKey
    - campaignId
    - domain
    - firstName
    - lastName
    properties:
      apiKey:
        type: string
        description: Hunter API key passed as the api_key query parameter.
      campaignId:
        type: integer
        description: Identifier of the campaign to add the recipient to.
      domain:
        type: string
        description: Domain name to find the person's email at.
      firstName:
        type: string
        description: First name of the person.
      lastName:
        type: string
        description: Last name of the person.
  steps:
  - stepId: findEmail
    description: >-
      Find the most likely email for the named person at the domain along with
      a confidence score.
    operationId: emailFinder
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: domain
      in: query
      value: $inputs.domain
    - name: first_name
      in: query
      value: $inputs.firstName
    - name: last_name
      in: query
      value: $inputs.lastName
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      email: $response.body#/data/email
      score: $response.body#/data/score
  - stepId: verifyEmail
    description: >-
      Verify the deliverability of the found email and branch: add it to the
      campaign when valid, otherwise end without adding.
    operationId: emailVerifier
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: email
      in: query
      value: $steps.findEmail.outputs.email
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/data/status
    onSuccess:
    - name: emailValid
      type: goto
      stepId: addRecipient
      criteria:
      - context: $response.body
        condition: $.data.status == "valid"
        type: jsonpath
    - name: emailNotValid
      type: end
      criteria:
      - context: $response.body
        condition: $.data.status != "valid"
        type: jsonpath
  - stepId: addRecipient
    description: >-
      Add the verified email address as a recipient of the specified campaign.
    operationId: addCampaignRecipients
    parameters:
    - name: api_key
      in: query
      value: $inputs.apiKey
    - name: id
      in: path
      value: $inputs.campaignId
    requestBody:
      contentType: application/json
      payload:
        emails: $steps.findEmail.outputs.email
    successCriteria:
    - condition: $statusCode == 201
  outputs:
    email: $steps.findEmail.outputs.email
    verificationStatus: $steps.verifyEmail.outputs.status

Work with this as data

Every workflow here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for arazzo workflows

4 MCP tools reach this
  • find_arazzoBrowse and filter every workflow in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This workflow
curl "https://apis.io/api/v1/arazzo/hunter-find-verify-add-recipient-workflow"
All arazzo workflows
curl "https://apis.io/api/v1/arazzo?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.