Open source. Open possibilities.

NexusMind is a production-grade AI model proxy service that aggregates multiple AI providers into a single OpenAI-compatible API interface.

JSDoc is an API documentation generator for JavaScript. It parses annotated source files and outputs HTML documentation, installable globally or locally via npm on Node.js 8.15.0 and later, and is supported by community templates and build-tool plugins.

Apache APISIX is a dynamic, real-time, high-performance cloud-native API and AI gateway built on NGINX and etcd, offering dynamic routing, plugin hot-loading, multi-protocol support, and AI proxying for LLM workloads.

An asynchronous Python client for Stockholm's Open Data Platform API. It currently retrieves disabled-parking locations (about 2045) with address, district, coordinates and validity dates, requires an API key, and is structured so other datasets from the same platform can be added.

HermesMade provides six CLI tools addressing common AI user pain points: censorship risk analysis, model quality monitoring, API cost optimization, local LLM deployment, code inspection, and task cost estimation.

Directus wraps any SQL database with auto-generated REST and GraphQL APIs, a visual management Studio, and a native MCP server for AI agents. It supports granular permissions and self-hosting.

FreeAPI.app is an open-source API hub providing free, diverse APIs for learning and portfolio building, with local, Docker, and Railway deployment options, plus Playwright testing.

A community-maintained directory of 730+ free public APIs across 48 categories, with a searchable website and a free JSON API endpoint. Covers animals, anime, finance, geocoding, weather and more.

Provides free and paid large model API forwarding service, compatible with OpenAI protocol, can call models such as GPT, DeepSeek, Claude, Gemini, Qwen, etc.; free quota is refreshed periodically, paid price lower than official.

A curated directory of free public APIs, organized by category and updated by a large community, helping developers find available endpoints for their projects.

PostgREST serves a fully RESTful API from any existing PostgreSQL database. It handles JWT authentication, delegates authorization to database roles, supports schema-based versioning, generates OpenAPI docs, and pushes data validation and JSON serialization into SQL.

Neovim is an extensible refactor of the Vim text editor designed to simplify maintenance and enable advanced user interfaces.

Soenneker.Loops.Contacts is a .NET utility library for managing Loops contacts by email. It provides create, update, find, and delete operations, configuration through a Loops API key, and scoped or singleton dependency injection registration.

NanoPay is a JavaScript/TypeScript library for the Nano cryptocurrency network. It provides client workflows and low-level functions for accounts, local signing, block building, work generation, node RPC, sends, receives, representative changes, exact amount conversion, payment URIs, and confirmation watching. It supports ESM, CommonJS, TypeScript, and browsers, and is GPL-3.0-only.

Simple Multi Apps - Kotlin is an open-source Android application featuring a modular collection of tools including a stopwatch, games, PDF reader, and video player.

MultiRouter AI is an OpenAI-compatible gateway that routes chat requests across multiple AI providers with automatic failover and load balancing. Supports Groq, Cerebras, Gemini, OpenAI, and custom endpoints via YAML config.

Hoppscotch is an open-source API development ecosystem providing a lightweight alternative to Postman and Insomnia for testing and designing APIs.

An asynchronous Python client for the Open Data Platform of Liège (Belgium). It currently exposes the disabled parking spaces and garages datasets through a simple async API, and its code base is designed to be extended to other datasets from the same platform.

Tomba is a CLI tool for finding and verifying email addresses, enriching contact data, and discovering phone numbers from domains, LinkedIn URLs, or article authors. It supports bulk CSV processing, AI chat, and reusable workflow skills.

DiceBear is an open-source avatar library that generates SVG avatars from any seed string in 63 styles, with native libraries for seven languages, an HTTP API, CLI, and editor.