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openrouter-oauth

Implement OAuth PKCE sign-in with OpenRouter for browser-based web apps.

209|33|Updated Jan 31, 2026
Search Tags:#authentication#frontend#oauth#web app#api key#openrouter#pkce
One-click install
npx skills add https://github.com/OpenRouterTeam/skills --skill openrouter-oauth
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: openrouter-oauth
Source: https://github.com/OpenRouterTeam/skills/tree/main/skills/openrouter-oauth
Command: npx skills add https://github.com/OpenRouterTeam/skills --skill openrouter-oauth

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill eliminates the complexity of implementing secure OpenRouter authentication for browser-based web applications, removing the need for client registration, backend servers, or manual secret management that typically complicates OAuth integration.

Core Features & Use Cases

  • Framework-agnostic OAuth PKCE flow: Works with React, Vue, Svelte, vanilla JS and any other web stack, with no external SDK required.
  • No client registration or backend needed: Users authorize directly on OpenRouter, and your app receives an API key without any server-side setup.
  • Pre-built implementation assets: Includes a drop-in auth module, ready-to-use sign-in button components with multiple variants, and cross-tab auth state synchronization. Use case: A developer building a browser-based AI chat tool can use this Skill to add OpenRouter sign-in in minutes, letting users authenticate and get an API key to access OpenRouter's 600+ AI models without setting up any authentication infrastructure.

Quick Start

Use the openrouter-oauth skill to add Sign In with OpenRouter authentication to your browser-based web app with no client registration or backend required.

Frequently Asked Questions about openrouter-oauth

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I add OpenRouter OAuth authentication to a web app without a backend?▼

You can add OpenRouter OAuth authentication to a web app without a backend by implementing a PKCE-based flow in the browser. This approach uses native Web Crypto APIs to handle token exchange and acquire API keys directly, requiring no server-side setup or client registration.

Does OpenRouter PKCE authentication work with React, Vue, and Svelte?▼

Yes, OpenRouter PKCE authentication works with React, Vue, Svelte, and vanilla JavaScript. The implementation is framework-agnostic and requires no external SDK, providing drop-in auth modules and sign-in button components for various web stacks.

What is OAuth PKCE and how does it secure browser-based API key acquisition?▼

OAuth PKCE secures browser-based API key acquisition by generating a cryptographic verifier and challenge pair using Web Crypto APIs. This prevents interception during the auth redirect and token exchange process, allowing safe authorization without a backend server.

Can I get an OpenRouter API key directly from frontend JavaScript?▼

Yes, you can get an OpenRouter API key directly from frontend JavaScript. The PKCE flow redirects users to OpenRouter for authorization and returns an API key to your web application, eliminating the need for manual secret management or backend infrastructure.

Do I need client registration to implement Sign In with OpenRouter?▼

No, you do not need client registration to implement Sign In with OpenRouter. The browser-based PKCE flow allows users to authorize directly on OpenRouter, securely returning an API key to your application without setting up OAuth client credentials.

How do you handle cross-tab auth state synchronization for OpenRouter logins?▼

Cross-tab auth state synchronization for OpenRouter logins is handled using native browser storage APIs. This ensures that when a user completes the authentication flow in one tab, their authorized API key and session state immediately reflect across all open tabs.

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