Anymail Finder Verify Email API

openapi: 3.2.0
info:
  title: Anymail finder Verify Email API
  description: ''
  version: '5.1'
  contact: {}
servers:
- url: https://api.anymailfinder.com
tags:
- name: verify-email
paths:
  /v5.1/verify-email:
    post:
      description: Validates the provided email address to determine its authenticity and deliverability. The input requires a single email address. The response includes a "validation" field, which can be "valid" if the email is confirmed to be genuine and deliverable, "invalid" if the email is definitively non-existent or undeliverable, or "risky" if the validation process is inconclusive.
      operationId: validate
      parameters:
      - name: x-webhook-url
        in: header
        description: If provided, the result will be POSTed to this URL instead of waiting for the response.
        required: false
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Api51VerifyEmailBodyDto'
      responses:
        '200':
          description: Validation completed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Api51VerifyEmailResponseSuccessDto'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Api51ErrorResponseDto'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Api51ErrorResponseDto'
        '402':
          description: Upgrade needed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Api51ErrorResponseDto'
      security:
      - api_key: []
      summary: Validate an email
      tags:
      - verify-email
components:
  schemas:
    Api51VerifyEmailResponseSuccessDto:
      type: object
      properties:
        input:
          type: object
          description: Your request original input.
        credits_charged:
          type: number
          description: Number of credits charged for this request.
        email_status:
          enum:
          - valid
          - risky
          - invalid
          type: string
          description: 'The result of the email validation: ''valid'', ''risky'' or ''invalid''.'
        mx_domain:
          type:
          - string
          - 'null'
          description: The root domain of the MX hostname, e.g. google.com or outlook.com. null if mx_host is null.
          example: google.com
        mx_host:
          type:
          - string
          - 'null'
          description: The domain's primary MX hostname, or null if none found.
          example: aspmx.l.google.com
      required:
      - input
      - credits_charged
      - email_status
      - mx_domain
      - mx_host
    Api51ErrorResponseDto:
      type: object
      properties:
        error:
          type: string
          description: Error code
          example: no_result
        message:
          type: string
          description: Detailed explanation of the error
          example: We could not find an email for this person. Sorry.
      required:
      - error
      - message
    Api51VerifyEmailBodyDto:
      type: object
      properties:
        email:
          type: string
          format: email
          description: The email to validate.
      required:
      - email
  securitySchemes:
    api_key:
      type: apiKey
      in: header
      name: Authorization