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

# Check WhatsApp numbers

> Checks whether one or more numbers are registered on WhatsApp.



## OpenAPI

````yaml openapi.evolution-v2.json POST /chat/whatsappNumbers/{instance}
openapi: 3.1.0
info:
  title: Evolution V2 Layer
  version: 1.0.0
  description: >-
    Pilot Status API Layer — Evolution V2. Base URL
    `https://pilotstatus.com.br/api/layer/evolution-v2`. Authenticate with the
    `apikey` header (your Pilot Status `ps_` key). Instance/session endpoints
    are NOT available through the layer.
servers:
  - url: https://pilotstatus.com.br/api/layer/evolution-v2
security:
  - apiKey: []
tags:
  - name: Call & Business
  - name: Chat
  - name: Group
  - name: Label
  - name: Message
  - name: Profile
  - name: Settings & Proxy
  - name: Storage (S3)
  - name: Template
paths:
  /chat/whatsappNumbers/{instance}:
    post:
      tags:
        - Chat
      summary: Check WhatsApp numbers
      description: Checks whether one or more numbers are registered on WhatsApp.
      operationId: post__chat_whatsappNumbers_instance
      parameters:
        - name: instance
          in: path
          required: true
          schema:
            type: string
          description: The number's display name in the Pilot Status dashboard.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                numbers:
                  type: array
                  items:
                    type: string
                  description: >-
                    Array of numeric phone strings (E.164 without symbols) to
                    verify.
                  example:
                    - '5511999999999'
                    - '5521988888888'
              required:
                - numbers
      responses:
        '200':
          description: Success — provider-native response body.
          content:
            application/json:
              schema:
                type: array
                description: >-
                  One entry per checked number (OnWhatsAppDto). Order includes
                  users, groups and broadcast targets.
                items:
                  type: object
                  properties:
                    jid:
                      type: string
                      description: >-
                        Resolved WhatsApp JID for the number (user, group or
                        broadcast).
                    exists:
                      type: boolean
                      description: Whether the number is registered on WhatsApp.
                    number:
                      type: string
                      description: The original number as supplied in the request.
                    name:
                      type: string
                      description: Saved contact pushName or group subject, when available.
                    lid:
                      type: string
                      description: >-
                        LID marker/identifier when the JID is a LID (@lid)
                        address.
                  required:
                    - jid
                    - exists
                    - number
              example:
                - jid: 5511999999999@s.whatsapp.net
                  exists: true
                  number: '5511999999999'
                  name: Maria Silva
                - jid: 5511888888888@s.whatsapp.net
                  exists: false
                  number: '5511888888888'
        default:
          description: Error — provider or layer error.
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: integer
                  error:
                    type: string
                  message:
                    type: string
                  response:
                    type: object
              example:
                status: 400
                error: Bad Request
                message: Invalid payload
components:
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: apikey
      description: >-
        Your Pilot Status API key (ps_...). Evolution GO also accepts
        `Authorization: Bearer <key>`.

````