#websocket

Deploy headless browsers in Docker. Run on our cloud or bring your own. Free for non-commercial uses.

An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

Deploy headless browsers in Docker. Run on our cloud or bring your own. Free for non-commercial uses.

Deploy headless browsers in Docker. Run on our cloud or bring your own. Free for non-commercial uses.

Slack Developer Kit for Python

A framework to build Slack apps using Python

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Bidirectional and low-latency communication for every platform

🚀 Coroutine-based concurrency library for PHP

Multi-framework streaming Markdown renderers for AI apps: Vue/Nuxt, React/Next.js, Svelte, and Angular, with Mermaid, KaTeX, Shiki, Monaco, safe HTML, and low-jitter updates.

A collection of additional crates supporting the actix and actix-web frameworks.

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.

LoopBack makes it easy to build modern API applications that require complex integrations.

A fancy self-hosted monitoring tool

🐙 The Go backend powering OCTO — an open workplace built for humans × AI agents. REST & WebSocket APIs, Lobster (AI agent) orchestration, and WuKongIM real-time messaging control plane.

The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.

WebSocket and WAMP in Python for Twisted and asyncio

Laravel Reverb provides a real-time WebSocket communication backend for Laravel applications.

Python Socket.IO server and client

Library for building WebSocket servers and clients in Python

Node.js & JavaScript SDK for Binance REST APIs & WebSockets, with TypeScript & browser support, integration tests, beautification & more.

Node.js SDK for the Bybit APIs and WebSockets, with TypeScript & browser support.

Simple to use, blazing fast and thoroughly tested WebSocket client and server for Node.js

Mock everything your AI app talks to — LLM APIs, MCP, A2A, AG-UI, vector DBs, search. One package, one port, zero dependencies.

Real-time transport layer for Java AI agents. Build once with @Agent — deliver over WebSocket, SSE, gRPC, and WebTransport/HTTP3. Talk MCP, A2A and AG-UI.

High-performance, scalable, self-hosted instant messaging server in Go — private chat, groups, chatrooms, WebSocket and REST APIs.

A Fast and Easy to use microframework for the web.

Microsoft Azure Cognitive Services Speech SDK for JavaScript