#websocket

An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and management. Optimizes Agent & Tool calling, and supports plugins.

Webapp for collaborative online retrospectives

A framework to build Slack apps using JavaScript

Slack Developer Kit for Node.js

Slack Developer Kit for Python

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.

A framework to build Slack apps using Python

The Streaming-first HTTP server/module of Apache Pekko

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

🐙 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.

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

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

High performance, minimalist Go web framework

Open-source speech recognition toolkit for training, inference, streaming ASR, VAD, punctuation, speaker diarization pipelines, and OpenAI-compatible/MCP serving.

modular service framework to move and transform network packets

Slack Developer Kit (including Bolt for Java) for any JVM language

Bidirectional and low-latency communication for every platform

🚀 Coroutine-based concurrency library for PHP

The Yjs CRDT WebSocket backend for conflict-free real-time collaboration in your app.

Rust SDK for ACP clients and agents.

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.

MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.

A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers