We’re excited to introduce a new way to access your Lnk.Bio account.

You can now log in or sign up using Bluesky, thanks to support for the Atproto OAuth2 flow.

This makes it easier to connect your Lnk.Bio presence with the growing Bluesky ecosystem, while keeping your login options flexible.

A seamless Bluesky login experience

With this update, you can:

  • Sign up to Lnk.Bio using your Bluesky account
  • Log in instantly without creating a new password

Everything is handled through the official Atproto OAuth2 flow, ensuring a secure and modern authentication process.

Add Bluesky to your existing account

Already using Lnk.Bio? You can easily connect Bluesky as an additional login method.

Go to:
Menu → Settings → Login Methods

From there, you can link your Bluesky account and use it alongside your existing login methods.

Built with open source, for the community

To make this integration possible, we didn’t just implement Bluesky login internally.

We also built and released two open source libraries, now available to the community:

atproto-php

This library provides a PHP implementation of the Atproto OAuth2 flow, making it easier for developers to integrate Bluesky authentication into their own projects.

It handles the complexity of the protocol (PKCE, DPoP, and PAR support) and offers a clean foundation for building secure login flows.

bluesky-php

On top of authentication, this library focuses on interacting directly with Bluesky.

It provides tools to connect to the platform and build integrations more easily, without having to deal with low-level details.

Why open source?

We believe that features like this should not live in isolation.

By releasing these libraries as open source, we’re:

  • Supporting developers building on Bluesky
  • Contributing to a growing ecosystem
  • Making it easier for others to integrate Atproto and Bluesky

We’re proud to share this work openly and hope it helps others build faster.

A step closer to the open web

Bluesky and Atproto represent a new direction for social platforms, one that emphasizes openness and decentralization.

With this integration, Lnk.Bio continues to support that vision, while giving you more flexibility in how you connect and manage your account.