---
title: "Get Authentication Message"
method: POST
path: "/v2/{identifier}/authentication"
tags: ["Auth"]
---

# Get Authentication Message

`POST /v2/{identifier}/authentication`

This endpoint returns an authentication message

## Path parameters

- `identifier` string, required

## Query parameters

- `type` 'raw' | 'link'

## Response `200`

ok

- AuthenticationResponse
  - `message` string, required
  - `sessionID` string, required

## Other responses

- `400` — Bad Request
- `500` — Internal Server error

---

[API](https://skmtc.net/0xpolygonid/apis/privado-id-issuer.md) · [All operations](https://skmtc.net/0xpolygonid/apis/privado-id-issuer/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/0xpolygonid/privado-id-issuer/versions/8ea65174fe46/schema)