---
title: "Start a passwordless authentication"
method: POST
path: "/v3/users/token-exchange"
tags: ["Users"]
---

# Start a passwordless authentication

`POST /v3/users/token-exchange`

Starts a passwordless authentication.

**IMPORTANT**: For passwordless authentication, first is required to send a POST to request an email to be sent to the user’s email with a link for the user to click on to verify his email.

## Request body

- object
  - `identifiers` object, required
    - `email_address` string
  - `delivery` object, required
    - `method` string
    - `destination` string
    - `action` string
    - `redirect` string

## Response `201`

Created

## Other responses

- `400` — Bad Request

---

[API](https://skmtc.net/zuora/apis/admin-api-reference.md) · [All operations](https://skmtc.net/zuora/apis/admin-api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/zuora/admin-api-reference/revisions/789812d35ac8/schema)