Discover the most starred and trending open source tools tagged with #api.
GeoNetwork is a catalog application to manage spatially referenced resources. It provides powerful metadata editing and search functions as well as an interactive web map viewer. It is currently used in numerous Spatial Data Infrastructure initiatives across the world.
Easy, flexible and powerful cloud-native Laravel CMS package powered by AI with JSON:API, GraphQL API, templates, and themes
AI image studio for DeepSeek Harness — generate, edit & compare images in chat, with 500+ prompts, gallery, multi-model workflows and ComfyUI.
A RAG app to ask questions about rows in a database table. Deployable on Azure Container Apps with PostgreSQL Flexible Server.
lunar.dev: Agent native MCP Gateway for governance and security
Modern Jira REST API client for JavaScript & TypeScript — Jira Cloud API v2/v3, Agile & Service Desk. Type-safe, tree-shakable, works in Node.js and browsers (ESM/CJS).
PyAthena is a Python DB API 2.0 (PEP 249) client for Amazon Athena.
FastAPI plugin to enable SSO to most common providers (such as Facebook login, Google login and login via Microsoft Office 365 Account)
Framework for automated integration tests with focus on message-based applications
Hive Console is part of the Hive GraphQL platform. Schema registry and analytics for GraphQL federation and other GraphQL APIs
Chrome extension to add a metadata layout on top of the standard Salesforce UI to improve the productivity and joy of Salesforce configuration, development, and integration.
Open-source multi-provider AI gateway for Claude Code and other coding agents, with model routing, streaming, tools, reasoning, fallbacks, and local model support
SystemVerilog 2017 Pre-processor, Parser, Elaborator, UHDM Compiler. Provides IEEE Design/TB C/C++ VPI and Python AST & UHDM APIs. Compiles on Linux gcc, Windows msys2-gcc & msvc, OsX
Longbridge OpenAPI SDK Base.
Project templates for Revit add-ins
Gravitee.io - OpenSource API Management
Template to build modern web apps with a classic REST API. Ideal if you need offline & real-time features on day one.
🗜 A Ruby wrapper for the bit.ly API
Starknet full node designed for peak concurrency and efficiency
YouTrackDB is a general-use object-oriented graph database with storage format native to handle graph relations. YouTrackDB supports Gremlin queries and ACID transactions. YTDB supports both embedded and client-server deployment models.