> ## Documentation Index
> Fetch the complete documentation index at: https://gnosispay-feat-v2-auth-module.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Siwe message

> Retrieve the message that users need to Sign in with Ethereum (SIWE)



## OpenAPI

````yaml https://core.prod.gnosispay.com/user-api/openapi.json get /auth/siwe/{address}
openapi: 3.1.0
info:
  title: User Service
  version: 0.0.0
servers: []
security: []
tags:
  - name: Health
  - name: Auth
  - name: User
  - name: Cards
  - name: Phone
  - name: PCI
  - name: Terms
  - name: Source of Funds
paths:
  /auth/siwe/{address}:
    get:
      tags:
        - Auth
      summary: Get Siwe message
      description: Retrieve the message that users need to Sign in with Ethereum (SIWE)
      operationId: Auth_getSiweMessage
      parameters:
        - name: address
          in: path
          required: true
          description: Ethereum address
          schema:
            type: string
        - name: domain
          in: query
          required: true
          description: Domain requesting authentication
          schema:
            type: string
            minLength: 1
          explode: false
        - name: uri
          in: query
          required: true
          description: URI of the application
          schema:
            type: string
            format: uri
          explode: false
        - name: appName
          in: query
          required: true
          description: Application name to display in wallet
          schema:
            type: string
            minLength: 1
          explode: false
      responses:
        '200':
          description: The request has succeeded.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetSiweMessageResponse'
        '400':
          description: Validation failure on auth routes (decoder / request constraints).
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AuthValidationError'
        '422':
          description: Client error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GetSiweMessageUnprocessableEntity'
        default:
          description: An unexpected error response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    GetSiweMessageResponse:
      type: object
      required:
        - success
        - message
      properties:
        success:
          type: boolean
          enum:
            - true
        message:
          type: string
    AuthValidationError:
      type: object
      required:
        - kind
        - success
        - error
      properties:
        kind:
          type: string
          enum:
            - validation
        success:
          type: boolean
          enum:
            - false
        error:
          $ref: '#/components/schemas/ValidationErrorDetail'
      description: Validation failure on auth routes (decoder / request constraints).
    GetSiweMessageUnprocessableEntity:
      type: object
      required:
        - success
        - error
      properties:
        success:
          type: boolean
          enum:
            - false
        error:
          type: string
    Error:
      type: object
      required:
        - success
        - error
      properties:
        success:
          type: boolean
          enum:
            - false
        error:
          type: string
    ValidationErrorDetail:
      type: object
      required:
        - name
        - message
      properties:
        name:
          type: string
          enum:
            - ValidationError
        message:
          type: string

````