Projects sharing features with RealChar

This project is a framework for building voice and text agents using the OpenAI Realtime API. It implements architectural patterns for multi-agent orchestration, hybrid model distribution, state-managed prompting, and real-time response validation. The framework utilizes a hybrid task distributor to split workloads between fast conversational models and high-intelligence models for complex reasoning. It employs an orchestration system that routes user requests between specialized agents using a graph to manage complex task requirements. Additional capabilities include a state machine prompt

This project is a Python framework for building autonomous, event-driven agent systems. It provides a unified runtime for orchestrating multi-agent workflows, managing persistent conversation state, and executing code within secure, isolated sandbox environments. The framework is designed to handle complex task delegation, allowing agents to invoke other agents as tools while maintaining context across multi-turn interactions. The framework distinguishes itself through its deep integration with the Model Context Protocol, enabling agents to connect to external data sources and remote services

Stoatchat is a real-time chat server and messaging backend that utilizes WebSockets to handle instant communication, live event updates, and user presence tracking. The project incorporates an encrypted file storage system and cloud storage layer that applies AES encryption to binary data before upload. It also functions as an HTTP content proxy server to mask user IP addresses when fetching media from third-party services and as a push notification gateway to ensure reliable alert delivery via a background dispatch queue. The system includes role-based access control to manage user permissi

FirebaseChat is a real-time chat application and serverless messaging client that synchronizes conversations and messages instantly across clients. It provides a user interface for a messaging system backed by a cloud-hosted NoSQL document store. The project implements a real-time chat system through the integration of a Firebase backend, allowing for instant messaging workflows and the synchronization of data across connected clients. The application manages data using schema-less NoSQL storage and document-based data modeling. It utilizes a persistent connection for database synchronizatio

Telegram-iOS is a native mobile application for sending and receiving real-time messages. It serves as a cross-platform messaging client developed specifically for iOS to provide a high-performance chatting and file-sharing experience. The application is built as an MTProto communication client, utilizing this specific protocol for the secure and fast delivery of encrypted data. It synchronizes conversations and media across multiple devices using a centralized cloud server. The client implements a range of communication and architectural capabilities, including asynchronous message queuing,

Open-IM-Server is an instant messaging server and cross-platform messaging backend designed for real-time text and media communication. It provides a distributed chat architecture that coordinates user sessions and group communications across multiple server nodes to support millions of concurrent users. The system features a scalable message distribution model that utilizes asynchronous message pipelines and distributed queueing to maintain reliability during traffic spikes. It employs multi-level data caching across local memory and distributed stores to reduce latency and uses a document-b

Chat.io is a real-time messaging platform designed for bidirectional communication between clients and servers. It provides a complete infrastructure for managing persistent user connections, chat sessions, and instant message delivery through event-based messaging protocols. The platform integrates secure identity verification by supporting both local credentials and third-party social media authentication. It manages application data and user profiles using a document-oriented database, while utilizing a high-performance caching layer to handle active user sessions and transient data. The

Pipecat is a framework and software development kit for building real-time multimodal AI agents and speech-to-speech systems. It utilizes a frame-based data pipeline to route audio, video, and text through a modular sequence of processors, enabling the orchestration of low-latency conversational AI. The project is distinguished by its ability to coordinate complex multimodal services, including speech-to-text, language models, and text-to-speech, within a single pipeline. It features semantic voice activity detection for natural turn-taking, state-machine conversation flows for dialogue manag

Libretaxi is an open-source ride-hailing and transport marketplace platform. It functions as a peer-to-peer logistics coordinator that connects passengers with drivers to organize transportation services without a corporate intermediary. The system utilizes a service provider matching engine to pair users with available local providers based on current system state. It facilitates direct coordination between seekers and providers through a real-time messaging bridge. The platform includes a community moderation system with role-based access control to restrict administrative functions. These

XMPPFramework is an Objective-C communication framework and networking library used to build instant messaging applications for Mac and iOS. It provides a programmatic foundation for implementing XMPP clients, managing real-time message exchange, and processing structured XML streams between network endpoints. The framework features a modular plugin architecture and extension system that allows for the integration of custom communication capabilities and protocol extensions into the data stream. It distinguishes itself with specialized support for OMEMO end-to-end encryption and a state-based

Colanode is a local-first collaboration platform designed for shared documents, chat, and databases. It provides a self-hosted suite for team collaboration and knowledge management, allowing users to maintain full control over their data and privacy on their own infrastructure. The platform is distinguished by a synchronization engine that uses WebSockets for real-time data broadcasting and a local-first approach to ensure work continues offline. It incorporates AI-powered retrieval through vector-based semantic search, enabling users to find information based on meaning across documents and

Papercups is an open-source live chat platform and self-hosted customer messaging system. It provides a real-time communication infrastructure consisting of an embeddable web widget for customers and a containerized administrative dashboard for support teams. The platform features an omnichannel messaging hub that aggregates and normalizes conversations from email, SMS, and third-party chat channels into a single unified stream. It also includes a framework for deploying automated FAQ chatbots to handle initial inquiries and a real-time session monitoring tool that allows agents to view a use

This is a minimal WebSocket library for Go designed for bidirectional real-time communication. It serves as a network protocol implementation for managing handshakes, frame masking, and control signals to enable the exchange of text and binary messages over persistent connections. The library distinguishes itself by providing a connectivity layer that wraps browser WebSocket APIs for applications compiled to WebAssembly. It also functions as data compression middleware, utilizing deflate compression to reduce bandwidth usage for transmitted messages. The project covers a broad range of netwo

This project is a messaging SDK for Android applications, providing the core infrastructure for real-time communication using Kotlin and Jetpack Compose. It offers a suite of modular, declarative UI components and a backend-connected API to manage user authentication, persistent socket connections, and data synchronization. The SDK is distinguished by its offline-first architecture, which utilizes local database persistence to cache conversation history and queue user actions for synchronization once network connectivity is restored. Developers can customize the messaging experience through a

Dootask is an open-source project management tool and self-hosted task orchestrator designed for task distribution, project tracking, and document management. It functions as a collaborative platform that integrates team communication and workflow organization within a single workspace. The platform includes a collaborative document suite for creating shared documents, mind maps, and flowcharts. It also operates as an encrypted team communication platform, utilizing asymmetric encryption to secure internal conversations and data exchange. The system covers broader capabilities in identity ma

This repository is a collection of Java backend projects, encompassing a web application suite, a real-time chat server, a web crawler, and an authentication system. It provides implementations for building server-side logic and business rules to process data and handle web requests. The project includes a networked messaging system for instant bidirectional communication and an automated web scraping engine that parses HTML to aggregate data into local storage. It also features a security framework for managing user permissions and generating visual captchas to prevent automated bot access.

This is an open-source platform for creating, hosting, and interacting with persistent AI characters that maintain personality and memory across conversations. The system orchestrates the full lifecycle of an AI companion by combining character definitions, conversation history, memory retrieval, model abstraction, and external communication channels into a unified runtime pipeline. The platform enables users to define detailed character personalities through structured configuration files that shape conversational behavior, and supports multi-turn dialogue through a memory system that stores

TSWeChat is a native iOS instant messaging client developed using the Swift programming language. It provides a mobile interface for real-time text communication, voice notes, and multimedia messaging. The application implements specialized utilities for multimedia handling, including an audio format converter to ensure voice recordings are compatible across different mobile devices. It also features custom input interface tools to modify the behavior and appearance of the system keyboard for rich message entry. The system manages user relationships through a structured contact address book

Once Campfire is a self-hosted team chat platform and real-time messaging server. It provides a web-based communication environment for internal team messaging, featuring group channels, private direct messages, and a bot-integrated system for automating external messaging services. The platform is distributed as a dockerized collaboration suite, allowing for containerized deployment with bundled application dependencies and automated SSL provisioning. The system covers a broad range of collaboration capabilities, including chat management with granular access controls, file attachment shari

HuLa is an open-source communication suite and cross-platform chat client designed for real-time instant messaging, voice, and video calls. It functions as an LLM-integrated messaging platform and an AI-powered social manager that synchronizes user data and settings across different operating systems. The platform integrates large language models to provide automated AI assistants, real-time message translation, and chat log summarization. It further utilizes artificial intelligence for user sentiment analysis to assist with social matching and risk management. The system includes a high-per

This project is a framework for developing multimodal AI agents that function as programmable participants in real-time communication rooms. It enables the construction of agents that can see, hear, and speak by integrating speech-to-text, large language models, and text-to-speech pipelines to facilitate low-latency, natural conversations. The system is distinguished by its advanced orchestration of real-time media and conversational flow, including support for full-duplex speech, preemptive response generation, and sophisticated interruption management. It further differentiates itself throu

MobileIMSDK is an open-source instant messaging framework that provides reliable real-time message delivery across iOS, Android, Java, HarmonyOS, and web platforms. At its core, it offers a unified communication layer that transparently supports UDP, TCP, and WebSocket transports, enabling developers to send and receive messages without managing protocol differences or connection state. The framework includes an automatic reconnection engine that detects network outages and restores connections without manual intervention, with built-in message retransmission and deduplication to guarantee exa

Duix-Mobile is a software development kit for deploying real-time conversational AI characters on mobile devices. It enables the creation of interactive digital humans capable of fluid voice-to-voice interactions, featuring low-latency speech recognition and synchronized lip movements. The project distinguishes itself through the ability to integrate custom external language models and speech providers to define an avatar's intelligence and voice. It supports the generation of real-time multilingual subtitles and provides mechanisms to track the training status of newly created digital charac

BigBlueButton is an open-source virtual classroom software and meeting server designed for hosting real-time online teaching sessions. It functions as a WebRTC video conferencing platform and collaboration suite, providing a self-hosted environment for virtual classroom management and online course administration. The system distinguishes itself through specialized educational tools, including an interactive quiz engine, breakout room coordination, and live polling. It provides a comprehensive suite of collaborative assets such as a shared infinite whiteboard, real-time co-authored notes, and

Cinny is a decentralized chat interface and web client designed for the Matrix protocol. It serves as a front-end application that enables users to send and receive secure messages and engage in group conversations across a federated messaging network. The application is built as a static web application, allowing it to be deployed as static files or hosted within Docker containers. This structure supports self-hosted chat infrastructure where users maintain control over their communication data. The interface provides tools for real-time team communication, including the ability to organize

Element Web is a web-based communication interface and collaboration platform built on the Matrix open standard. It functions as a client application for sending and receiving real-time messages and facilitating decentralized team communication. The project provides a cross-platform messaging interface that operates within web browsers and can be deployed as a standalone desktop application. It includes a multi-language user interface designed to support a global audience through localization.