> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fuseai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Verify an email address

> Verify whether an email address can be sent to, checked by ZeroBounce. Charged for every verdict but `unknown`, at the key's usage plan price.

The answer carries `email`, `status` (`valid`; `invalid`, which includes addresses never to be sent to; `risky`, a catch-all domain that accepts every address; or `unknown`) and `creditsCharged`. A check ZeroBounce cannot answer in time answers 504 and charges nothing: retry. Send an `X-Idempotency-Key` header: the same key with the same body is charged once however often it is sent, while a key reused for another person or address is new work.

Only keys whose usage plan includes `email_verify` may call it. Rate limit: the plan's `email_verify` entry.

Errors:
- `402` `INSUFFICIENT_CREDITS` — The balance cannot pay for the check; nothing was checked.
- `403` `API_NOT_ON_PLAN` — The key's usage plan does not include `email_verify`.
- `429` `RATE_LIMITED` — The plan's per-minute or per-day limit for `email_verify` is spent.

Requires one of the following token scopes: data.



## OpenAPI

````yaml /openapi.json post /business/data/emails/verify
openapi: 3.1.0
info:
  title: Fuse Business API
  version: 1.0.0
  description: >-
    External API for lists, campaigns, prospect search and contacts.
    Authenticate with your API token as HTTP Basic. All paths are under /api/v1.
servers:
  - url: https://api.tryfuse.ai/api/v1
    description: Production
security:
  - basicAuth: []
tags:
  - name: Lists
  - name: Custom columns
  - name: Smart columns
  - name: Exports
  - name: Campaigns
  - name: Knowledge hubs
  - name: Analytics
  - name: Website intent
  - name: Account
  - name: Data
  - name: Prospect search
  - name: Campaign steps
  - name: Scheduled sends
  - name: Campaign templates
  - name: Agents
  - name: Research
  - name: Company search
  - name: Saved searches
  - name: Folders
  - name: Contacts
paths:
  /business/data/emails/verify:
    post:
      tags:
        - Data
      summary: Verify an email address
      description: >-
        Verify whether an email address can be sent to, checked by ZeroBounce.
        Charged for every verdict but `unknown`, at the key's usage plan price.


        The answer carries `email`, `status` (`valid`; `invalid`, which includes
        addresses never to be sent to; `risky`, a catch-all domain that accepts
        every address; or `unknown`) and `creditsCharged`. A check ZeroBounce
        cannot answer in time answers 504 and charges nothing: retry. Send an
        `X-Idempotency-Key` header: the same key with the same body is charged
        once however often it is sent, while a key reused for another person or
        address is new work.


        Only keys whose usage plan includes `email_verify` may call it. Rate
        limit: the plan's `email_verify` entry.


        Errors:

        - `402` `INSUFFICIENT_CREDITS` — The balance cannot pay for the check;
        nothing was checked.

        - `403` `API_NOT_ON_PLAN` — The key's usage plan does not include
        `email_verify`.

        - `429` `RATE_LIMITED` — The plan's per-minute or per-day limit for
        `email_verify` is spent.


        Requires one of the following token scopes: data.
      operationId: verifyEmail
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                email:
                  type: string
                  format: email
                  maxLength: 320
                  description: The address to check, e.g. `jane@stripe.com`.
              required:
                - email
      responses:
        '200':
          description: Success
          headers:
            RateLimit-Limit:
              schema:
                type: integer
              description: Requests permitted in the current window.
            RateLimit-Remaining:
              schema:
                type: integer
              description: Requests remaining in the current window.
            RateLimit-Reset:
              schema:
                type: integer
              description: Seconds until the current window resets.
          content:
            application/json:
              schema:
                type: object
                required:
                  - email
                  - status
                  - creditsCharged
                properties:
                  email:
                    type: string
                  status:
                    type: string
                    enum:
                      - valid
                      - invalid
                      - risky
                      - unknown
                  creditsCharged:
                    type: integer
                    description: The plan's price, or 0 for `unknown`.
              example:
                email: jane@stripe.com
                status: valid
                creditsCharged: 10
        '400':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '402':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - basicAuth: []
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            param:
              type:
                - string
                - 'null'
            doc_url:
              type:
                - string
                - 'null'
            request_id:
              type:
                - string
                - 'null'
          required:
            - code
            - message
      required:
        - error
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: >-
        Your API token (`af_…`) as the Basic-auth username, with an empty
        password.

````

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