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

# Check if a user exists

> Check if a user exists using various identifiers such as username, email, griddid, or phone.



## OpenAPI

````yaml /connect-api/openapi.json get /api/user/check
openapi: 3.0.0
info:
  title: GNet Connect API
  version: 1.0.0
  description: API for the GNet Connect platform
servers:
  - url: https://core.grdd.dev
    description: Development server
  - url: https://core.grdd.net
    description: Production server
security: []
paths:
  /api/user/check:
    get:
      tags:
        - user
      summary: Check if a user exists
      description: >-
        Check if a user exists using various identifiers such as username,
        email, griddid, or phone.
      operationId: check_user
      parameters:
        - name: email
          in: query
          required: false
          schema:
            type: string
        - name: username
          in: query
          required: false
          schema:
            type: string
        - name: phone
          in: query
          required: false
          schema:
            type: string
      responses:
        '200':
          description: Success

````