messaging

Apache Iggy: Hyper-Efficient Message Streaming at Laser Speed

Orchestrate end-to-end encryption, cryptographic identities, mutual authentication, and authorization policies between distributed applications – at massive scale.

Macro is a unified workspace for teams: email, chat, docs, tasks, agents, calls, and CRM — @-linked together with shared AI memory.

zenoh unifies data in motion, data in-use, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks.

An AI agent for teams, communities, and multi-user environments.

Rust client for NATS, the cloud native messaging system.

🚀 Apache RocketMQ built in Rust 🦀 — faster, safer, and more memory-efficient. Powering high-performance messaging for the AI era, with AI Agent, MCP, and AI-SRE capabilities.

A native implementation of ØMQ in Rust

AMQP client library in Rust, with a clean, futures based API

MQTT Server/MQTT Broker - Scalable Distributed MQTT Message Broker for IoT in the 5G Era

ZapFast: a fast, native WhatsApp client in Rust and egui

Chatmail Rust Core library, used by Android/iOS/desktop chatmail apps, bindings and bots 📧

simple but convenient CLI-based Matrix client app for sending and receiving (in Rust)

Implementation of the nanomsg "Scalability Protocols" in rust.

C API for Zenoh

An extensible message broker for edge applications

Fast, distributed per-aggregate event log with strict ordering and optimistic concurrency control.

Distributed AI agents that work everywhere with no-code UI

Decentralized peer-to-peer messaging with bootstrap discovery, direct connections, and no centralized message infrastructure.

simple but convenient CLI-based Nostr client app for following users and sending DMs