domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| sitewhere/sitewhere SiteWhere is an open-source, multi-tenant IoT application enablement platform built on Java/Spring microservices, offering device and asset… | 66 | 1045 | abandoned |
| Grover-c13/PokeGOAPI-Java A Java library providing an unofficial client API for Pokemon GO, allowing programs to interact with the game's servers. It supports action… | 23 | 1045 | abandoned |
| kubernetes-retired/service-catalog A Kubernetes extension (SIG project) that integrates service brokers via the Open Service Broker API, letting users provision external clou… | 10 | 1038 | abandoned |
| uscensusbureau/citysdk CitySDK is a JavaScript (ClojureScript-compiled) library that simplifies access to US Census Bureau APIs, providing utilities for fetching … | 10 | 1038 | abandoned |
| fashiontec/openwash-server OpenWash is the backend API server for the OpenWash project, providing a REST API for a laundry/washing service application. It serves as t… | 32 | 1029 | abandoned |
| Shopify/js-buy-sdk A lightweight JavaScript SDK for embedding Shopify ecommerce into any website, providing product retrieval, cart management, and checkout v… | 67 | 1018 | abandoned |
| jfinkels/flask-restless A Flask extension that automatically generates RESTful JSON APIs from SQLAlchemy models. It is no longer maintained, with the last release … | 23 | 1004 | abandoned |
| n8n n8n is a fair-code workflow automation platform with native AI capabilities, combining a visual canvas with custom JavaScript/Python code. … | 95 | 202527 | active |
| Supabase Supabase is an open-source Postgres development platform that bundles a hosted (or self-hosted) Postgres database with authentication, auto… | 98 | 108441 | stable |
| laravel/laravel Laravel is a batteries-included PHP web application framework with expressive syntax, covering routing, ORM (Eloquent), migrations, queues,… | 99 | 84878 | stable |
| spring-projects/spring-boot Spring Boot is an opinionated framework for building stand-alone, production-grade Spring-based Java applications with minimal configuratio… | 99 | 81367 | stable |
| Strapi Strapi is the leading open-source headless CMS, written entirely in JavaScript/TypeScript, that lets developers design content models visua… | 95 | 73015 | stable |
| spring-projects/spring-framework Spring Framework is the foundational application framework for Java-based enterprise applications, providing dependency injection, AOP, tra… | 99 | 60212 | stable |
| BerriAI/litellm LiteLLM is an open-source AI gateway and Python SDK that provides a unified OpenAI-format interface to 100+ LLM providers (OpenAI, Anthropi… | 91 | 57340 | active |
| Appwrite Appwrite is an open-source backend-as-a-service platform providing authentication, databases, file storage, serverless functions, messaging… | 97 | 57130 | stable |
| diegosouzapw/OmniRoute OmniRoute is a free, MIT-licensed AI gateway that exposes a single OpenAI-compatible endpoint routing to 350+ LLM providers (90+ with free … | 78 | 56223 | active |
| Mastodon Mastodon is a free, open-source, self-hosted social network server for microblogging built on the ActivityPub protocol, written in Ruby on … | 95 | 50254 | stable |
| calcom/cal.diy Cal.diy is the fully open-source, MIT-licensed community edition of Cal.com, a scheduling platform for booking meetings and managing availa… | 84 | 47946 | active |
| Prisma ORM Prisma is a next-generation ORM for Node.js and TypeScript that generates a fully type-safe client from a declarative schema, supporting Po… | 99 | 47564 | active |
| KeygraphHQ/shannon Shannon is an open-source, autonomous AI pentester for web applications and APIs that runs locally from the command line. It analyzes sourc… | 84 | 47226 | active |
| Serverless Framework The Serverless Framework is a CLI tool and framework that deploys code and cloud infrastructure together using simple YAML syntax, primaril… | 95 | 46918 | active |
| Rocket.Chat Rocket.Chat is an open-source, MIT-licensed team communication platform built in TypeScript on Meteor, offering real-time chat, voice/video… | 95 | 46032 | stable |
| payloadcms/payload Payload is an open-source, MIT-licensed fullstack Next.js framework and headless CMS written in TypeScript. A single config instantly gener… | 94 | 44422 | stable |
| Alamofire Alamofire is an elegant HTTP networking library for Swift built on top of URLSession, providing chainable request/response handling, parame… | 87 | 42422 | stable |
| Agno Agno is a Python SDK and runtime (AgentOS) for building, running, and managing full agent platforms, including agents, teams, and workflows… | 95 | 41938 | active |
| DeusData/codebase-memory-mcp A Model Context Protocol (MCP) server that indexes codebases into a persistent knowledge graph of functions, classes, call chains, and HTTP… | 81 | 40771 | active |
| appsmithorg/appsmith Appsmith is an open-source low-code platform for building admin panels, internal tools, and dashboards with drag-and-drop widgets, JavaScri… | 94 | 40752 | active |
| tRPC tRPC is a TypeScript library for building and consuming fully typesafe APIs without schemas or code generation, leveraging TypeScript type … | 95 | 40548 | stable |
| novuhq/novu Novu is an open-source communication infrastructure platform that provides a unified API for sending notifications (in-app inbox, email, SM… | 94 | 39674 | active |
| directus/directus Directus is an open-source backend application that wraps any SQL database into instant REST and GraphQL APIs, a no-code data studio, and a… | 99 | 37603 | active |
| musistudio/claude-code-router Claude Code Router (CCR) is a self-hosted local model gateway and control plane that routes AI coding agent requests (Claude Code, Codex, G… | 87 | 36893 | active |
| Chatwoot Chatwoot is an open-source, self-hostable customer support platform providing an omnichannel shared inbox for live chat, email, WhatsApp, s… | 99 | 36244 | stable |
| Medusa Medusa is an open-source (open-core) digital commerce platform with a built-in customization framework, offering modular commerce primitive… | 94 | 36020 | active |
| refinedev/refine Refine is an open-source React framework for rapidly building internal tools, admin panels, dashboards, and B2B applications on top of exis… | 81 | 35584 | active |
| laravel/framework Laravel is a batteries-included PHP web application framework with expressive syntax, covering routing, ORM (Eloquent), templating (Blade),… | 95 | 34882 | stable |
| TabbyML/tabby Tabby is a self-hosted, open-source AI coding assistant that serves as an on-premises alternative to GitHub Copilot. It provides LLM-powere… | 82 | 33838 | active |
| go-zero go-zero is a cloud-native Go web and RPC microservices framework with built-in engineering practices like circuit breaking, rate limiting, … | 98 | 33280 | stable |
| SGLang SGLang is a high-performance open-source serving framework for large language models and multimodal models, offering low-latency, high-thro… | 93 | 32504 | stable |
| NGINX NGINX is a high-performance HTTP web server, reverse proxy, content cache, load balancer, API gateway, and TCP/UDP/mail proxy server writte… | 99 | 31504 | stable |
| symfony/symfony Symfony is a full-stack PHP framework for building web and console applications, plus a set of reusable, decoupled PHP components used by p… | 95 | 31135 | stable |
| tirth8205/code-review-graph A local-first code intelligence tool that builds a persistent knowledge graph of a codebase using Tree-sitter static analysis, exposed via … | 81 | 30891 | active |
| alibaba/spring-cloud-alibaba Spring Cloud Alibaba is a one-stop framework for building distributed Java microservices on the Spring Cloud programming model, integrating… | 89 | 29167 | active |
| Bagisto Bagisto is an open-source eCommerce platform built on Laravel (PHP) for B2C, B2B, multi-vendor marketplace, multi-tenant, and headless comm… | 99 | 27994 | active |
| marmelab/react-admin React-admin is an open-source frontend framework for building single-page admin panels, dashboards, and B2B applications on top of REST or … | 92 | 26914 | stable |
| go-kratos/kratos Kratos is a lightweight Go framework for building cloud-native microservices, offering APIs for transport (HTTP/gRPC), middleware, registry… | 91 | 25892 | active |
| tsenart/vegeta Vegeta is a versatile HTTP load testing tool and Go library that drills HTTP services with a constant request rate. It is usable both as a … | 58 | 25166 | stable |
| dubinc/dub Dub is an open-source link attribution platform combining branded short links, real-time conversion analytics, and affiliate/partner progra… | 77 | 24581 | active |
| micro/go-micro Go Micro is a Go framework and CLI that combines an AI agent harness with a microservices framework, giving agents tools, memory, guardrail… | 95 | 23043 | active |
| jina-ai/serve Jina-serve is a Python framework for building and deploying multimodal AI services that communicate via gRPC, HTTP, and WebSockets. It prov… | 40 | 21861 | active |
| GoogleCloudPlatform/microservices-demo Online Boutique is a cloud-first microservices demo application: a web-based e-commerce app composed of 11 polyglot microservices communica… | 89 | 20869 | active |
| tashfeenahmed/freellmapi FreeLLMAPI is an open-source, self-hosted LLM gateway that aggregates free tiers from 34 providers (600+ free model endpoints) behind a sin… | 81 | 20682 | active |
| jasontaylordev/CleanArchitecture A .NET solution template that scaffolds production-ready ASP.NET Core applications following Clean Architecture principles, with optional A… | 91 | 20491 | active |
| apache/casbin Apache Casbin is an open-source authorization library that enforces access control using models such as ACL, RBAC, ABAC, ReBAC, and MAC, de… | 98 | 20349 | stable |
| AdonisJS AdonisJS is a batteries-included, TypeScript-first fullstack MVC web framework for Node.js. It ships with an ORM (Lucid), authentication, v… | 98 | 19101 | stable |
| teng-lin/notebooklm-py An unofficial Python SDK, CLI, and agentic skill for programmatically driving Google NotebookLM (now Gemini Notebook), including source imp… | 82 | 18951 | active |
| iii-hq/iii iii is a Rust-based runtime engine that composes backend services from three primitives (Worker, Trigger, Function), letting polyglot worke… | 83 | 18629 | active |
| Tencent/APIJSON APIJSON is a Tencent open-source Java ORM and JSON-based API protocol that auto-generates CRUD APIs and documentation without backend codin… | 98 | 18402 | active |
| sqlc-dev/sqlc sqlc is a command-line SQL compiler that generates fully type-safe, idiomatic code from SQL queries for languages like Go, Kotlin, Python, … | 84 | 18202 | stable |
| auth0/node-jsonwebtoken A Node.js library implementing JSON Web Tokens (JWT) per RFC 7519, supporting signing and verification with HMAC, RSA, and ECDSA algorithms… | 72 | 18189 | stable |
| mswjs/msw Mock Service Worker (MSW) is an API mocking library for JavaScript that intercepts HTTP, GraphQL, and WebSocket requests in browsers via th… | 90 | 18168 | stable |
| windmill-labs/windmill Windmill is an open-source, self-hostable developer platform that turns scripts in Python, TypeScript, Go, Bash, SQL and other languages in… | 95 | 17687 | active |
| redwoodjs/graphql RedwoodJS GraphQL is the GraphQL-focused full-stack web framework from the Redwood project, integrating React, Apollo, Prisma, and GraphQL … | 82 | 17606 | active |
| apache/brpc Apache bRPC ("better RPC") is an industrial-grade C++ RPC framework for building reliable, high-performance services and clients. It suppor… | 90 | 17594 | stable |
| openimsdk/open-im-server OpenIM Server is an open-source instant messaging backend written in Go that powers in-app chat, group messaging, and voice/video calling. … | 87 | 16616 | stable |
| amplication/amplication Amplication is an open-source platform that generates production-ready backend services (NestJS/Node.js, with .NET support) from data model… | 87 | 16014 | active |
| spree/spree Spree Commerce is an open-source headless eCommerce platform written in Ruby, providing a complete REST API, TypeScript SDK, admin dashboar… | 98 | 15647 | stable |
| apitable/apitable APITable is an open-source, API-oriented low-code platform for building collaborative database-spreadsheet applications, positioned as an o… | 48 | 15575 | active |
| ag-ui-protocol/ag-ui AG-UI is an open, lightweight, event-based protocol that standardizes how AI agent backends connect to user-facing frontend applications. I… | 86 | 15562 | active |
| Effect-TS/effect Effect is a TypeScript library and ecosystem for building production-grade, type-safe applications, centered on the Effect type that encode… | 94 | 15514 | stable |
| jsdoc/jsdoc JSDoc is an API documentation generator for JavaScript, similar to Javadoc. It parses JSDoc-style comments in source code and generates an … | 67 | 15454 | stable |
| cachethq/cachet Cachet is an open-source, self-hosted status page system built on Laravel (PHP) for communicating downtime, incidents, and scheduled mainte… | 67 | 15231 | active |
| TanStack/router TanStack Router is a fully type-safe, client-first router for React and Solid applications, with file-based routing, nested layouts, loader… | 95 | 14995 | active |
| open-metadata/OpenMetadata OpenMetadata is an open-source metadata management platform that unifies data cataloging, lineage, data quality, governance, and business s… | 95 | 14986 | active |
| logto-io/logto Logto is an open-source identity and access management (IAM) infrastructure for SaaS and AI applications, built on OIDC, OAuth 2.1, and SAM… | 98 | 14468 | active |
| sogou/workflow Sogou C++ Workflow is an enterprise-level C++ framework for parallel computing and asynchronous networking, powering Sogou's back-end servi… | 93 | 14418 | stable |
| ABP Framework ABP Framework is an open-source, opinionated application framework for building enterprise web applications on .NET and ASP.NET Core. It pr… | 98 | 14417 | active |
| forwardemail/supertest SuperTest is a Node.js library for testing HTTP servers using a fluent, chainable API built on top of superagent. It provides high-level HT… | 76 | 14396 | stable |
| ory/kratos Ory Kratos is a headless, API-first identity and user management server written in Go that centralizes login, registration, account recover… | 81 | 13849 | stable |
| graphql/dataloader DataLoader is a JavaScript/Node.js utility that batches and caches data-loading requests to reduce round trips to backends like databases o… | 66 | 13384 | stable |
| gogf/gf GoFrame is a modular, high-performance full-stack development framework for Go, comparable to Laravel or Spring Boot, offering batteries-in… | 99 | 13249 | active |
| star7th/showdoc ShowDoc is a self-hostable online documentation tool for IT teams, focused on API docs, data dictionaries, and technical manuals with a Mar… | 98 | 12850 | stable |
| Automattic/wp-calypso Calypso is the JavaScript and REST API powered single-page web application that serves as the WordPress.com dashboard. It is built with Rea… | 67 | 12639 | active |
| Wei-Shaw/claude-relay-service A self-hosted relay/proxy service for Claude Code (and OpenAI, Gemini, Droid) subscriptions that lets multiple users share accounts via ind… | 83 | 12566 | active |
| bentoml/OpenLLM OpenLLM is a Python framework and CLI for self-hosting open-source large language models (Llama, DeepSeek, Qwen, Mistral, etc.) as OpenAI-c… | 76 | 12518 | active |
| illacloud/illa-builder ILLA Builder is an open-source low-code platform for building internal business tools like dashboards, CRUD apps, admin panels, CRMs, and C… | 61 | 12311 | active |
| encoredev/encore Encore is an open-source infrastructure SDK and backend framework for TypeScript and Go that lets developers declare resources like databas… | 95 | 12307 | active |
| lidge-jun/opencodex opencodex is a lightweight local proxy (installed via npm, running on a bundled Bun runtime) that translates OpenAI Codex's Responses API a… | 76 | 12224 | active |
| tadata-org/fastapi_mcp FastAPI-MCP is a Python library that automatically exposes FastAPI endpoints as Model Context Protocol (MCP) tools, preserving request/resp… | 45 | 11988 | active |
| quic-go/quic-go quic-go is a production-ready, pure Go implementation of the QUIC transport protocol (RFC 9000/9001/9002) with support for HTTP/3, datagram… | 97 | 11750 | stable |
| walkor/workerman Workerman is an asynchronous, event-driven PHP framework for building high-performance socket servers supporting HTTP, WebSocket, SSL, and … | 95 | 11547 | stable |
| tymondesigns/jwt-auth A PHP library providing JSON Web Token (JWT) authentication for Laravel and Lumen applications. It handles token issuance, refresh, and val… | 66 | 11495 | stable |
| simonw/datasette Datasette is an open-source tool for exploring and publishing data, turning SQLite databases into interactive websites with an accompanying… | 86 | 11412 | active |
| dotansimha/graphql-code-generator GraphQL Code Generator is a plugin-based CLI tool that generates typed code from GraphQL schemas and operations (queries, mutations, subscr… | 95 | 11264 | stable |
| nitrojs/nitro Nitro is a TypeScript server toolkit that extends Vite apps with a production-ready server featuring file-based routing, caching, KV storag… | 95 | 11148 | active |
| openai/openai-node The official JavaScript/TypeScript SDK for the OpenAI REST API, auto-generated from OpenAI's OpenAPI specification. It provides typed acces… | 95 | 11145 | stable |
| aws/chalice AWS Chalice is a Python serverless microframework for building and deploying applications on AWS Lambda. It provides a CLI for scaffolding … | 76 | 11061 | stable |
| thedevs-network/kutt Kutt is a free, open-source, self-hostable URL shortener built with Node.js. It supports custom domains, link management, private click sta… | 96 | 11057 | active |
| vuestorefront/vue-storefront Alokai (formerly Vue Storefront) is a Frontend-as-a-Service ecosystem for building fast, scalable, headless eCommerce storefronts on Vue/Nu… | 73 | 10941 | active |
| sashabaranov/go-openai An unofficial Go client library for the OpenAI API covering chat completions, the Responses API, embeddings, image generation, audio transc… | 98 | 10748 | active |
| polarsource/polar Polar is an open-source billing and monetization platform that acts as merchant of record, offering usage-based billing, subscriptions, sea… | 97 | 10212 | active |