Open-Source API Development Ecosystem β’ https://hoppscotch.io β’ Offline, On-Prem & Cloud β’ Web, Desktop & CLI β’ Open-Source Alternative to Postman, Insomnia
π₯ π₯ π₯ A Free & Self-hostable Airtable Alternative
The open-source, cross-platform API client for GraphQL, REST, WebSockets, SSE and gRPC. With Cloud, Local and Git storage.
Blazing fast, instant realtime GraphQL APIs on all your data with fine grained access control, also trigger webhooks on database events.
AI agents, automations and apps that run your operations. Model agnostic.
Scalar is an open-source API platform:γγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγπ Modern REST API Clientγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγπ Beautiful API Referencesγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγγβ¨ 1st-Class OpenAPI/Swagger Support
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
πΈοΈ GraphQL Federation Framework for any API services such as REST, OpenAPI, Swagger, SOAP, gRPC and more...
Basic rate-limiting middleware for the Express web server
All in one project management tool for efficient teams
:triangular_ruler: Ts.ED is a Node.js and TypeScript framework on top of Express to write your application with TypeScript (or ES6). It provides a lot of decorators and guideline to make your code more readable and less error-prone. βοΈ Star to support our work!
A secure REST API and Model Context Protocol (MCP) server for your vault.
Open-source, self-hosted file-processing tool. Convert, compress, OCR, transcribe & run local AI across image, video, audio, PDF & documents, via UI, REST API & pipelines. Your files never leave your network.
Offline-First Minimalistic HTTP & Socket Testing Client for the Web & Desktop
Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.
SonicJS - The edge-native headless CMS for Cloudflare Workers. Sub-100ms response times, zero cold starts, TypeScript-first. Built on D1, R2, and Hono.
π A real-time monitoring dashboard for Claude Code & Codex, built with SQLite3, Node.js, Express, React, Vite, TailwindCSS, & WebSockets. It tracks sessions, agent activity, tool usage, and subagent orchestration, providing live analytics, a Kanban status board, status notifications, a cute buddy, & an interactive web UI/MacOS/Windows native app.
A strongly typed, runtime-agnostic web framework for building structured HTTP services in JavaScript, built on Web Standards.
π¦ Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.1.x or 3.0.x specification
CLI that generates a production-ready Express + TypeScript project β prettier, ESLint, and a working CRUD example baked in.
Restangular for Angular 2 and higher versions
A self-hosted WhatsApp Gateway & Dashboard built with Next.js 16, Baileys, and Prisma. Manage multi-session accounts, schedule messages, create auto-replies, and integrate via Webhooks.
GitHub REST API client for JavaScript
An API Boilerplate to create a ready-to-use REST API in seconds with Fastify + Kysely and JWT Authentication
Prod Forge is an open-source reference that shows how to build and operate a production-ready system: AI-assisted development, quality gates, CI/CD, infrastructure, observability, migrations, and rollback.
Autonomous backend platform. Your coding agent builds it over MCP, Backenly keeps it running: Postgres, REST APIs, auth, storage, realtime, and functions, with every change governed, verified, and reversible.
Parses a declarative filter object with $op(value) strings into a typed, database-agnostic filter AST. Zero dependencies, ~50 ns per call.