openapi: 3.0.1
info:
  title: IPQualityScore Device Fingerprint Email Validation API
  description: Real-time fraud prevention and threat intelligence API from IPQualityScore (IPQS). Covers proxy/VPN/Tor and IP reputation scoring, email and phone validation, malicious URL scanning, device fingerprinting, transaction risk scoring, and dark-web leaked-data checks. The API key is passed as a path parameter and responses are returned as JSON.
  termsOfService: https://www.ipqualityscore.com/terms-of-service
  contact:
    name: IPQualityScore Support
    url: https://www.ipqualityscore.com/contact
  version: '1.0'
servers:
- url: https://www.ipqualityscore.com/api/json
security:
- ApiKeyPath: []
tags:
- name: Email Validation
paths:
  /email/{api_key}/{email}:
    get:
      operationId: emailValidation
      tags:
      - Email Validation
      summary: Validate an email address.
      description: Verifies an email address for validity, deliverability, disposable or temporary domains, spam traps, honeypots, and recent abuse, returning a fraud score and DNS/MX checks.
      parameters:
      - name: api_key
        in: path
        required: true
        description: Your IPQualityScore API key.
        schema:
          type: string
      - name: email
        in: path
        required: true
        description: The URL-encoded email address to validate.
        schema:
          type: string
      - name: timeout
        in: query
        required: false
        description: Seconds to wait for a mailbox provider response (1-60, default 7).
        schema:
          type: integer
          minimum: 1
          maximum: 60
      - name: fast
        in: query
        required: false
        description: Prioritize speed over deep verification.
        schema:
          type: boolean
      - name: abuse_strictness
        in: query
        required: false
        description: Adjusts abuse-pattern detection (0-2).
        schema:
          type: integer
          minimum: 0
          maximum: 2
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EmailValidationResponse'
components:
  schemas:
    EmailValidationResponse:
      type: object
      properties:
        success:
          type: boolean
        message:
          type: string
        valid:
          type: boolean
        disposable:
          type: boolean
        smtp_score:
          type: integer
        overall_score:
          type: integer
        first_name:
          type: string
        generic:
          type: boolean
        common:
          type: boolean
        dns_valid:
          type: boolean
        honeypot:
          type: boolean
        deliverability:
          type: string
        frequent_complainer:
          type: boolean
        spam_trap_score:
          type: string
        catch_all:
          type: boolean
        timed_out:
          type: boolean
        suspect:
          type: boolean
        recent_abuse:
          type: boolean
        fraud_score:
          type: integer
        suggested_domain:
          type: string
        leaked:
          type: boolean
        domain_age:
          type: object
        first_seen:
          type: object
        sanitized_email:
          type: string
        request_id:
          type: string
  securitySchemes:
    ApiKeyPath:
      type: apiKey
      in: path
      name: api_key
      description: IPQualityScore API key passed as a path parameter on each request.