LINKSPREED Announces the UIID Embeddable Login Button — Sign In with UIID in a Single Copy-and-Paste
LINKSPREED announced the UIID Embeddable Login Button, a new project that reduces the work of adding 'Sign in with UIID' to a website from hours of development to a single copy-and-paste snippet.
USA, October 7, 2026 — LINKSPREED today announced the UIID Embeddable Login Button, a newly announced project that will reduce the work required to add “Sign in with UIID” to a website from hours of development to a single copy-and-paste snippet.
This is a new announced project and will be worked on in upcoming releases.
More about UIID at uiid.me.
The problem we are removing
Adding a federated login to a website today is a developer task, and a surprisingly involved one. Even with good documentation, the integrator has to build a button, construct an authorization URL with the correct parameters, run a server-side callback handler, exchange an authorization code, and validate the resulting identity token before a single user can sign in.
For an experienced developer, that is roughly half a day of work. For the far larger population of people building sites on website builders, shop templates, community platforms and no-code tools, it is not a half-day task — it is a hard stop. They have no backend to put a callback handler into.
Every hour of integration effort is a point on the drop-off curve. The Embeddable Login Button is designed to flatten that curve to almost nothing.
What is being built
A generated snippet. Inside the UIID developer console, a site owner will generate a snippet that is already pre-filled with their own client identifier. They paste it into their page. That is the integration.
A button that renders itself properly. The rendered control will automatically match the visitor’s light or dark color scheme and will be localized, so it looks native on the host site without the integrator styling anything.
A complete login handshake without server-side code. The snippet will carry the entire sign-in flow, so that platforms with no backend of their own can still offer UIID login.
A hosted verification path. For no-code platforms that cannot run their own backend validation, UIID will offer a hosted session verification endpoint so the result of a login can be confirmed without the site operating server infrastructure.
Security is the design constraint, not an afterthought
An embeddable authentication snippet is a security-sensitive object. Three principles are non-negotiable in this project.
No client secret ever appears in the snippet. The industry settled this question years ago: a public client — anything running in a browser — cannot hold a secret, because anyone can read it. The Embeddable Login Button will use a public client identifier together with the authorization code flow with PKCE, which is the mandated pattern under current OAuth security best practice. The console’s snippet generator will only ever emit public client identifiers. Confidential credentials will live on a separate screen with an explicit warning, so that pasting a secret into a frontend is structurally difficult rather than merely discouraged.
Credential entry never happens inside an embedded frame. The button is embedded; the actual sign-in is not. Sensitive steps render in a top-level context or a UIID-owned popup, which is what prevents an embedded login frame from being overlaid and hijacked by the surrounding page.
Callback addresses are exact-match only. No wildcards, validated at registration time. This closes the open-redirect class of attacks that has affected federated login implementations for as long as federated login has existed.
Tokens are short-lived and held in memory. Refresh tokens rotate on every use, so that a token exposed through a scripting flaw on a host page has minimal value and a short life.
Who this is for
Small businesses and site owners who want modern passwordless login without hiring a developer to build it.
No-code and low-code builders — website builders, shop templates, community platforms — which are currently unable to offer UIID at all because they have no backend to integrate against.
Developers who do have a backend but would rather spend their afternoon on their own product than on an OAuth handshake.
The UIID ecosystem as a whole, which benefits from a consistent, recognizable sign-in control appearing across every integration.
Why this is the first thing we are shipping in this portfolio
Of everything LINKSPREED has on its roadmap, this is the change with the shortest path between engineering effort and measurable outcome. The limiting factor on UIID adoption has not been the protocol for some time. It has been distribution — and distribution is gated by how long it takes someone to say yes and then actually finish the integration.
Reducing that from hours to minutes does not require new standards, new browser capabilities or new partnerships. It requires making the existing, standards-compliant flow trivially easy to adopt.
What success looks like
We are measuring this project against outcomes we can state publicly and be held to:
- The median time from creating an application in the developer console to the first successful production login, which we intend to bring under ten minutes.
- The share of new integrations that use the snippet rather than the manual flow.
- The proportion of new developer accounts that reach a first successful production login within their first week.
Availability
The Embeddable Login Button is a newly announced project and will be delivered in upcoming releases. Announcements will be published through LINKSPREED’s press channel, at blog.linkspreed.com and in the Help Center at help.linkspreed.com.
Developers and site owners interested in early access can apply to the Trusted Tester Program by emailing [email protected], naming this project and including their UIID. Applications without a UIID are not evaluated.
About LINKSPREED
LINKSPREED is the company behind UIID, a universal digital identity platform providing standards-based, passwordless identity for people, organizations, software agents and machines, and the broader Web4 ecosystem.
Learn more at uiid.me.