Authsignal

Authsignal Client API

Browser / device-facing REST API for fully custom authentication UIs. Supports passkeys, authenticator apps, SMS / WhatsApp OTP, email OTP, magic links, and push challenges. Authenticated with short-lived client tokens issued by the Server API.

Authsignal Client API is one of 16 APIs that Authsignal publishes on the APIs.io network.

Tagged areas include REST, Client, Passkeys, and OTP. The published artifact set on APIs.io includes API documentation.

GitHub

Documentation

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Documentation
https://docs.authsignal.com/api-reference/client-api/overview

API entry from apis.yml

apis.yml Raw ↑ 
aid: authsignal:client-api
name: Authsignal Client API
description: Browser / device-facing REST API for fully custom authentication UIs. Supports passkeys,
  authenticator apps, SMS / WhatsApp OTP, email OTP, magic links, and push challenges. Authenticated with
  short-lived client tokens issued by the Server API.
humanURL: https://docs.authsignal.com/api-reference/client-api/overview
baseURL: https://api.authsignal.com
tags:
- REST
- Client
- Passkeys
- OTP
properties:
- type: Documentation
  url: https://docs.authsignal.com/api-reference/client-api/overview