#messaging

JS / Browser Client - Build Chat with GetStream.io

Apache Iggy: Hyper-Efficient Message Streaming at Laser Speed

:speech_balloon: Android Chat SDK ➜ Stream Chat API. UI component libraries for chat apps. Kotlin & Jetpack Compose messaging SDK for Android chat

Messaging library for Python.

React Chat SDK ➜ Stream Chat 💬

Rust client for NATS, the cloud native messaging system.

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably, socket.io, Phoenix.PubSub, SignalR. Set up once and forever.

Python3 client for NATS

Async .NET client for NATS: pub/sub, request/reply, JetStream, KV, Object Store, Services

signal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.

Harper is an open-source Node.js performance platform that unifies database, cache, application, and messaging layers into one in-memory process.

Modular TypeScript SDK for the ADAMANT blockchain and deterministic wallet helpers

Telegram MCP server powered by Telethon to let MCP clients read chats, manage groups, and send/modify messages, media, contacts, and settings.

Java client for NATS

Terminal chat for developers: Go WebSocket server + Bubble Tea TUI client, optional E2E, reactions, DMs, channels, plugins, files, code snippets, admin UI. Backends: SQLite, PostgreSQL, or MySQL. Self-hosted.