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

# Verify Single Email

> Submits an email for verification. Returns a task ID to check the verification status via the `/verify/single/status` endpoint. Consumes credits. Requires a valid API key and active subscription.



## OpenAPI

````yaml POST /verify/single
openapi: 3.1.0
info:
  title: Deliverable Docs API
  description: API for email verification and task status.
  license:
    name: MIT
  version: 1.0.0
servers:
  - url: https://api.deliverable.co/gateway
security:
  - apiKeyAuth: []
paths:
  /verify/single:
    post:
      summary: Verify Single Email
      description: >-
        Submits an email for verification. Returns a task ID to check the
        verification status via the `/verify/single/status` endpoint. Consumes
        credits. Requires a valid API key and active subscription.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/VerifySingleEmailRequest'
      responses:
        '200':
          description: Email added to queue successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerifySingleEmailResponse'
        '400':
          description: Bad request — invalid or missing email
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Invalid API key
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '402':
          description: Insufficient credits, subscription expired, or payment required
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Rate limit exceeded
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    VerifySingleEmailRequest:
      type: object
      required:
        - email
      properties:
        email:
          type: string
          format: email
          description: The email address to verify
          example: user@example.com
        mode:
          type: string
          format: enum
          description: >-
            The mode to verify the email address, by default it is set to
            catch_all
          enum:
            - catch_all
            - non_catch_all
          example: catch_all
    VerifySingleEmailResponse:
      type: object
      properties:
        message:
          allOf:
            - $ref: '#/components/schemas/MessageEnvelope'
            - properties:
                description:
                  example: Email added to queue successfully
        data:
          type: object
          properties:
            task_id:
              type: string
              description: Use this ID with /verify/single/status to poll for the result
              example: task_abc123xyz
    Error:
      type: object
      properties:
        error:
          type: integer
          format: int32
          example: 400
        message:
          type: string
          example: Invalid request body
    MessageEnvelope:
      type: object
      properties:
        status:
          type: string
          example: success
        statusCode:
          type: integer
          example: 200
        description:
          type: string
          example: Operation completed successfully
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key for authentication. Pass your API key in the x-api-key header.

````