Browse Kotlin Multiplatform libraries

Single-executable open backend delivering sub-millisecond REST and realtime APIs, multi-database support, WASM runtime for extensibility, geospatial queries, SSR, built-in auth and admin UI.

Next-generation live media protocol delivering WebRTC-like real-time latency at massive scale via QUIC. Features prioritization, partial reliability, pub/sub fan-out relays, WebTransport/WebCodecs integration.

Compact Mi Home client enabling direct control of lights, air conditioners, purifiers, sensors and robots via MiotAPI, featuring modular control/device frameworks and performance-focused rewrite.

Enables seamless YouTube video and audio playback across multiple platforms, integrating with JetBrains Compose Multiplatform. Features include authentication tokens, event handling, and reels view support.

High-level toolkit for interacting with AWS services via category-based APIs and plugin drivers—auth, storage, analytics, geo, GraphQL—plus SDK escape hatches and Rx/async adapters.

Lightweight implementation of OpenID Connect/OAuth 2.0 supporting Authorization Code Grant Flow, discovery, PKCE, and simple JWT parsing. Includes Android, iOS, desktop support, and OkHttp/Ktor integration.

Simplifies authentication flows using Firebase Authentication, offering composable APIs for Google, Apple, and Email/Password providers. Supports extensible configuration and email actions for user management.

Generates code and runtime libraries from Smithy models, supporting various protocols, authentication, serialization, and observability, along with extensive testing and benchmarking modules.

Facilitates multi-platform authentication with Google Sign-In across Android, iOS, Desktop, and Web. Includes GoogleSignInButton composable for easy integration and future support plans for additional providers.

Facilitates Android device connection without ADB server, supporting wireless debugging, apk sideloading, file management, port forwarding, and shell command execution with secure SSL/TLS1.3 connections.

Implements verifiable credentials for issuing, presentation, and validation across various applications, supporting W3C and ISO standards, ARIES protocols, OpenID, and customizable cryptographic operations.

Client library for interacting with the Notion API, offering coroutine-based, blocking, and future-based flavors. Facilitates OAuth support, pagination, content creation with DSL, and configurable logging/proxy settings.

Streamlines OAuth/OIDC authentication, token lifecycle and secure on-device storage; enables advanced flows (Device Authorization, Token Exchange, Identity Engine) with web-based authentication UI and credential management.

Opinionated library streamlining OpenID Connect Authorization Code Flow implementation with PKCE. Features intuitive API, sensible defaults, and advanced configurability, prioritizing secure standards.

Facilitates interaction with Twitter v2 API, enabling tweet retrieval, real-time tweet streaming with filters, and simple OAuth2 authentication. Designed for Android applications with coroutine support for asynchronous operations.

Unified passkeys API offering create/authenticate flows backed by native authenticators, declarative UI integration, browser handoff, libfido2 support, and a server module for WebAuthn verification.

Drastically speeds server development with high-level abstractions for databases, cache, email, SMS, and file storage; typed HTTP/WebSocket endpoints, auth flows, auto-generated docs and SDKs, Terraform output.

Full-stack authentication stack: ready-to-run server plus shared SDK and client SDK with federated Google, passkey, OTP, email verification, KYC, reusable UI and credential manager.

Standards-first WebAuthn and passkey building blocks: typed protocol models, strict validation, backend ceremony services, client orchestration, and modular transport, storage, crypto and attestation adapters.

Enables integration with WeChat's Open SDK, offering functionalities like launching WeChat, sharing, payments, login, and mini-programs. Provides structured media message support and customizable event handling.

Authentication SDK simplifying sign-up, sign-in, and profile management with prebuilt UI components, customizable typography/theme, plus sample apps demonstrating custom flows, passkeys, MFA, and quickstart integration.

Library enhances interaction with Pixiv's Android platform, supporting login, illustration and novel management, user data retrieval, searching, and dynamic content updates. Includes iOS support.

Simplifies REST API communication and WebSocket management, offering unified network request handling, token-based authentication, localization, and advanced error handling with minimal setup.

Enables seamless integration of passkey-based authentication in mobile applications, supporting passkey creation and authentication via the FIDO/WebAuthn standard, with sample apps and structured error handling.

Interact with Torbox API via a typed client offering request/response models, ApiResult wrappers, category-based endpoints, torrent management helpers and bearer-token authentication.

Facilitates Minecraft login using Microsoft credentials by exchanging Microsoft access tokens for Minecraft ones. Offers quick login and Xbox Live intermediary token retrieval options, ensuring account security awareness.

Streamlines Vodacom Mozambique M‑Pesa C2B checkout by handling authentication, RSA encryption, HTTP orchestration, composable UI flows, input validation, and reactive transaction results with localized messaging.

Checks device authentication status: screen lock configured, biometric support, enrollment and availability via a unified API to tailor secure user experiences.

Fetches game information from IGDB, supporting HTTP clients, Twitch authentication, multi-queries, automatic retry, image URL helpers, and webhook integration. Offers server proxy configuration and request customization.

Enables bio-authentication in applications using native platform APIs, supporting various environments. Facilitates seamless biometric integration, offering customizable authentication flows and native fine-tuning options.