Top 1,254 open source projects in API Gateways & Backends. Ranked by stars, activity, and recorded community growth.
Dominate is a Python library for creating and manipulating HTML documents using an elegant DOM API. It allows you to write HTML pages in pure Python very concisely, which eliminate the need to learn another template language, and to take advantage of the more powerful features of Python.
Ruby finite-state-machine-inspired API for modeling workflow
High-performance code-intelligence engine for AI agents and IDE, supports 257 languages, multi repositories, based on graph, with access via CLI, MCP Server, and API. AI coding agents teammate - expose only needed information, cutting token usage up to 50x. 100% local. Discord: https://discord.gg/39MFHu3J5d
UI5 Web Components - the enterprise-flavored sugar on top of native APIs! Build SAP Fiori user interfaces with the technology of your choice.
An MCP adapter that bridges the Abilities API to the Model Context Protocol, enabling MCP clients to discover and invoke WordPress plugin, theme, and core abilities programmatically.
gnark is a fast zk-SNARK library that offers a high-level API to design circuits. The library is open source and developed under the Apache 2.0 license
Open-source CRM with native AI agent support. 37 MCP tools, REST API, self-hosted. Built with Laravel & Filament
Open-source Back-end, self-hostable & ready to use - Real-time, storage, advanced search - Web, Apps, Mobile, IoT -
Fluent NHibernate!
stripe-mock is a mock HTTP server that responds like the real Stripe API. It can be used instead of Stripe's testmode to make test suites integrating with Stripe faster and less brittle.
Rapidly scaffold out a new tauri app project.
OpenDota: Open source Dota 2 data platform with automated replay parsing
CLI tool for saving a faithful copy of a complete web page in a single HTML file (based on SingleFile)
The OpenAPI.NET SDK contains a useful object model for OpenAPI documents in .NET along with common serializers to extract raw OpenAPI JSON and YAML documents from the model.
cn is a new engine for Tailwind class merging and conflict resolution. It replaces tailwind-merge and clsx. Same APIs. Full parity. And it is 30× faster.
❤️ Fredy - [F]ind [R]eal [E]state [D]amn Eas[y] - Fredy keeps searching for new apartments, houses, and flats in Europe on platforms like ImmoScout24, Immowelt, eBay Kleinanzeigen and instantly delivers the results to you via Slack, Telegram, Email, Discord or ntfy, so you can focus on the more important things in life ;)
Google APIs Client Library for .NET
Data API builder provides modern REST, GraphQL endpoints and MCP tools to your Azure Databases and on-prem stores.
Minimal graphics API. Built on top of latest Vulkan extensions. As close as possibly to my "No Graphics API" blog post and the SIGGRAPH talk.