domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| scality/cloudserver Zenko CloudServer is an open-source, Amazon S3-compatible object storage server written in Node.js. It exposes a single S3 API while storin… | 95 | 1940 | active |
| apache/servicecomb-java-chassis Apache ServiceComb Java Chassis is a Java SDK for rapidly building microservices, offering service registration, discovery, dynamic routing… | 88 | 1940 | active |
| asc-lab/dotnetcore-microservices-poc A proof-of-concept insurance sales system built with .NET 8 using a microservices architecture, demonstrating CQRS with MediatR, service di… | 51 | 1939 | active |
| tsrpc/tsrpc TSRPC is a TypeScript RPC framework providing runtime type checking and binary serialization derived directly from TypeScript types, withou… | 63 | 1932 | active |
| Shopify/shopify_app A Rails Engine gem by Shopify that provides generators, modules, and mixins for building Rails applications embedded in the Shopify Admin. … | 92 | 1926 | active |
| Payum/Payum Payum is a MIT-licensed PHP payment processing library that unifies 50+ payment gateways (Stripe, PayPal, Klarna, Authorize.Net, Sofort, an… | 75 | 1924 | stable |
| ecyrbe/zodios Zodios is a TypeScript REST API toolbox providing an end-to-end typesafe HTTP client (built on axios) and an optional Express-compatible se… | 67 | 1915 | active |
| openjournals/joss The Journal of Open Source Software (JOSS) is a developer-friendly, open-access academic journal for research software packages with a form… | 77 | 1910 | active |
| SeekStorm/SeekStorm SeekStorm is a sub-millisecond vector and lexical search engine written in Rust, available both as an in-process library and a multi-tenanc… | 88 | 1908 | active |
| lavalink-devs/Lavalink Lavalink is a standalone audio sending node for Discord, built on Lavaplayer and Koe, that streams music to Discord voice servers without a… | 90 | 1903 | stable |
| openmrs/openmrs-core OpenMRS is an open-source, patient-based electronic medical record (EMR) system built in Java, providing both an API and a web application.… | 77 | 1900 | active |
| chengzuopeng/stock-sdk A zero-dependency JavaScript/TypeScript SDK for fetching real-time quotes, K-line history, technical indicators, and extended market data f… | 82 | 1899 | active |
| anymail/django-anymail A Django library providing email backends and webhook integrations for many transactional email service providers (ESPs) such as Amazon SES… | 88 | 1897 | active |
| GhostManager/Ghostwriter Ghostwriter is an open-source Django-based platform from SpecterOps for managing offensive security engagements, including client/project t… | 94 | 1893 | active |
| polyfillpolyfill/polyfill-service Polyfill.io is a web service that automatically serves JavaScript polyfills tailored to each browser. It inspects the User-Agent header of … | 23 | 7138 | maintenance |
| robbie-cahill/tunnelmole-client Tunnelmole is an open-source tunneling tool that gives locally running HTTP(S) servers a public URL, similar to ngrok. It is distributed as… | 66 | 1884 | active |
| scholarly-python-package/scholarly scholarly is a Python library for retrieving author and publication metadata from Google Scholar through a friendly, Pythonic API. It handl… | 56 | 1879 | active |
| iMerica/dj-rest-auth dj-rest-auth provides drop-in authentication and registration endpoints for Django REST Framework, including login, logout, password manage… | 81 | 1868 | active |
| cloudflare/workers-oauth-provider An OAuth 2.1 provider library for Cloudflare Workers that adds authorization-server capabilities to HTTP APIs and remote MCP servers. It ha… | 86 | 1864 | active |
| NewLifeX/X NewLife.X is a core foundational component library for .NET (C#) providing logging, configuration, caching (memory/Redis), networking (TCP/… | 67 | 1860 | active |
| dzikoysk/reposilite Reposilite is a lightweight, self-hosted Maven repository manager for JVM artifacts, written in Kotlin as a simpler alternative to Nexus, A… | 95 | 1859 | active |
| zengzhan/qqzeng-ip A high-performance IP geolocation lookup engine (QZDB) with multi-language SDKs (Rust, C/C++, Go, Java, C#, Node.js, Python, PHP) that reso… | 77 | 1850 | active |
| expressots/expressots ExpressoTS is a lightweight TypeScript framework for Node.js for building scalable server-side applications with clean architecture, a buil… | 98 | 1848 | active |
| ever-co/ever-demand Ever Demand is an open-source, real-time on-demand commerce platform for building single-store shops, multi-vendor marketplaces, and on-dem… | 66 | 1848 | active |
| ada-url/ada Ada is a fast, WHATWG-compliant URL parser written in modern C++, including a full URLPattern implementation. It is the default URL parser … | 97 | 1829 | stable |
| go-telegram/bot A zero-dependency Go framework for building Telegram bots, supporting the latest Bot API version with both long-polling and webhook modes. … | 99 | 1815 | active |
| connor4312/cockatiel Cockatiel is a TypeScript/Node.js resilience and transient-fault-handling library inspired by .NET's Polly. It lets developers compose poli… | 67 | 1815 | active |
| metacall/core MetaCall is an extensible, embeddable polyglot runtime that lets you call functions, methods, or procedures across multiple programming lan… | 97 | 1813 | active |
| google/nomulus Nomulus is an open-source, scalable, cloud-based top-level domain (TLD) registry service written in Java and running on Google Kubernetes E… | 95 | 1806 | active |
| itswadesh/svelte-commerce Svelte Commerce is an open-source, production-ready headless ecommerce storefront built with SvelteKit and TypeScript. It connects to 26 co… | 79 | 1805 | active |
| ormar-orm/ormar Ormar is an async mini ORM for Python supporting Postgres, MySQL, and SQLite, built on SQLAlchemy Core with pydantic validation. It lets yo… | 95 | 1802 | active |
| go-spring/go-spring Go-Spring is an all-in-one Go backend development framework built around an IoC container and dependency injection, inspired by Java Spring… | 92 | 1792 | active |
| dj-stripe/dj-stripe dj-stripe is a Django application that syncs Stripe data into your local database as pre-implemented Django models, letting you query payme… | 85 | 1791 | active |
| kriasoft/universal-router Universal Router is a small, middleware-style routing library for isomorphic JavaScript applications, usable on both client and server. Rou… | 62 | 1784 | stable |
| yangzongzhuan/RuoYi-Cloud RuoYi-Cloud is an open-source Chinese rapid development platform providing a distributed microservices-based permission management system b… | 80 | 1783 | active |
| spatie/laravel-data A Laravel package for creating rich, typed data objects that can replace form requests, API transformers, and TypeScript definitions. Data … | 89 | 1782 | stable |
| apache/eventmesh Apache EventMesh is a cloud-native, serverless event middleware for building distributed event-driven applications. It provides a unified C… | 75 | 1746 | active |
| BearStudio/start-ui-web Start UI [web] is an opinionated, full-stack React starter template maintained by BearStudio, bundling TanStack Start, Tailwind CSS, shadcn… | 77 | 1742 | active |
| pgjdbc/pgjdbc PgJDBC is the official open-source PostgreSQL JDBC driver, written in pure Java (Type 4) and communicating via the PostgreSQL native networ… | 93 | 1731 | stable |
| bytedance/go-tagexpr go-tagexpr is a Go library that implements an expression syntax evaluated via struct tags, enabling declarative field validation and value … | 10 | 1727 | stable |
| envoyproxy/go-control-plane A Go library implementing the Envoy xDS discovery service APIs (data-plane-api) as a gRPC API server with an in-memory configuration cache.… | 99 | 1725 | active |
| zhontai/Admin.Core A full-stack, front-end/back-end separated admin permission management system built on .NET 10, Vue3, uniapp, and element-plus. It provides… | 94 | 1725 | active |
| karolkozer/planby Planby is a React component library for quickly building EPG (electronic program guide), schedule, timeline, and planner UIs with a custom … | 88 | 1721 | active |
| flowglad/flowglad Flowglad is an open-source payments and billing SDK for SaaS applications, built around a 'zero webhooks' stateless model where customer bi… | 69 | 1718 | active |
| dolevf/Damn-Vulnerable-GraphQL-Application Damn Vulnerable GraphQL Application (DVGA) is an intentionally insecure GraphQL service built for learning and practicing GraphQL security … | 33 | 1705 | active |
| SonicJs-Org/sonicjs SonicJS is an open-source, edge-native headless CMS built for Cloudflare Workers using TypeScript, Hono, D1, and R2, with sub-100ms API res… | 98 | 1690 | active |
| eemeli/yaml A comprehensive YAML parser and stringifier library for JavaScript and TypeScript, supporting YAML 1.1 and 1.2 with full comment and blank-… | 88 | 1689 | stable |
| mateaix/matecloud MateCloud is a Java-based microservices scaffold built on Spring Boot 4, Spring Cloud 2025, Spring Cloud Alibaba, and Dubbo 3, offering gat… | 83 | 1689 | active |
| murraco/spring-boot-jwt A JWT authentication service built with Spring Boot and Spring Security, backed by MySQL, featuring short-lived access tokens and rotating,… | 76 | 1688 | active |
| digoarthur/github-automated-repos A React library that lets developers display and manage their GitHub repositories on their portfolio or personal website using simple hooks… | 68 | 1685 | active |
| thevahidal/soul Soul is a Node.js CLI tool that instantly turns any SQLite database into a RESTful API server with a realtime WebSocket endpoint. It suppor… | 97 | 1684 | active |
| kuzzleio/kuzzle Kuzzle is an open-source, self-hostable general-purpose backend framework built on Node.js that exposes a multi-protocol API (HTTP, WebSock… | 95 | 1673 | active |
| googleapis/js-genai The official Google Gen AI SDK for TypeScript and JavaScript, providing access to the Gemini Developer API and Vertex AI (Gemini Enterprise… | 84 | 1668 | active |
| aws/aws-lambda-dotnet A collection of NuGet libraries, CLI tools, and project templates from AWS for building AWS Lambda functions with .NET. It includes event t… | 99 | 1664 | active |
| Gooddbird/tinyrpc TinyRPC is a C++ asynchronous RPC framework built on a reactor event loop with coroutine support, claiming 140k+ QPS. It supports a custom … | 66 | 1662 | active |
| tableau/TabPy TabPy is the Tableau Python Server, an Analytics Extensions implementation that lets Tableau users execute Python scripts and saved functio… | 95 | 1654 | active |
| mortada/fredapi fredapi is a Python wrapper around the Federal Reserve Bank of St. Louis FRED and ALFRED web services for fetching economic data. It return… | 52 | 1654 | active |
| Stream Chat The official Android SDK for Stream Chat, providing a low-level chat client plus reusable UI components and Jetpack Compose messaging UI fo… | 95 | 1649 | stable |
| DuendeSoftware/products Duende Products is a suite of identity and access management SDKs for ASP.NET Core, centered on Duende IdentityServer, a standards-complian… | 93 | 1614 | stable |
| wpengine/faustjs Faust.js is a TypeScript toolkit of npm packages for building Next.js applications on top of headless WordPress. It provides data fetching,… | 96 | 1598 | active |
| vimalloc/flask-jwt-extended Flask-JWT-Extended is an open source Flask extension that adds JSON Web Token (JWT) support for protecting routes, with many optional batte… | 93 | 1581 | stable |
| metosin/reitit Reitit is a fast, data-driven routing library for Clojure and ClojureScript. It provides bi-directional routing, first-class route data, pl… | 86 | 1581 | stable |
| nacos-group/r-nacos r-nacos is a Nacos server re-implemented in Rust, providing service discovery (registry), configuration center, MCP server capabilities, an… | 95 | 1577 | active |
| steedos/steedos-platform Steedos Platform is an open-source, metadata-driven low-code platform for building enterprise applications (CRMs, ERPs, approval workflows)… | 89 | 1574 | active |
| quixio/quix-streams Quix Streams is a pure Python framework for building real-time data pipelines and event-driven applications on Apache Kafka using a Streami… | 97 | 1568 | active |
| jhurliman/node-rate-limiter A generic rate limiting library for Node.js and the web, exposing RateLimiter and TokenBucket classes for throttling tasks like API request… | 41 | 1564 | stable |
| aws/serverless-java-container A Java library that lets applications built with frameworks like Spring, Spring Boot, Jersey, Struts, and Spark run inside AWS Lambda. It t… | 91 | 1559 | active |
| lampo1024/DncZeus DncZeus is a general-purpose admin management framework built on .NET 7 (ASP.NET Core Web API + EF Core) and Vue.js (iview-admin) with full… | 39 | 1555 | active |
| waybarrios/vllm-mlx vllm-mlx is a vLLM-style LLM inference server for Apple Silicon Macs built on native MLX, exposing both OpenAI and Anthropic compatible API… | 82 | 1547 | active |
| matrix-org/dendrite Dendrite is a second-generation Matrix homeserver written in Go, designed as an efficient, reliable, and scalable alternative to Synapse. I… | 10 | 5630 | maintenance |
| guacsec/guac GUAC (Graph for Understanding Artifact Composition) is an OpenSSF incubating project that ingests software security metadata such as SBOMs,… | 90 | 1534 | active |
| RayBytes/ChatMock ChatMock is a Python tool that exposes OpenAI- and Ollama-compatible API endpoints backed by a ChatGPT/Codex account login. It runs a local… | 68 | 1534 | active |
| BennyKok/comfyui-deploy An open-source, Vercel-like deployment platform for ComfyUI workflows, letting teams share workflows, manage machines (on-premise or server… | 40 | 1529 | active |
| sandroasp/Microsoft-Integration-and-Azure-Stencils-Pack-for-Visio A Visio stencil pack containing hundreds of fully resizable vector shapes and icons for Microsoft Azure, BizTalk Server, Power Platform, Of… | 23 | 1529 | active |
| mex-memory/mex mex is a TypeScript CLI that gives AI coding agents persistent, structured project memory: it maps the codebase into a deterministic code g… | 81 | 1526 | active |
| swoft-cloud/swoft Swoft is a PHP microservice coroutine framework built on the Swoole extension, offering a resident-memory coroutine web server with HTTP, W… | 23 | 5536 | maintenance |
| openai/openai-java The official Java SDK for accessing the OpenAI REST API, written in Kotlin and published to Maven Central. It provides typed clients for th… | 84 | 1515 | active |
| haydenbleasel/files-sdk Files SDK is a unified TypeScript storage SDK that provides one small API (ten methods) across 40+ object and blob storage providers includ… | 80 | 1515 | active |
| insistence/RuoYi-Vue3-FastAPI RuoYi-Vue3-FastAPI is a full-stack, open-source admin/management boilerplate framework that pairs a FastAPI backend (SQLAlchemy, MySQL/Post… | 87 | 1510 | active |
| broadway/broadway Broadway is a PHP library providing infrastructure and testing helpers for building CQRS and event-sourced applications. It offers loosely … | 10 | 1509 | active |
| akto-api-security/akto Akto is an open-source API and AI security platform that discovers and inventories APIs, AI agents, MCP servers, and LLM usage, then contin… | 94 | 1505 | active |
| FriendsOfSymfony/FOSJsRoutingBundle A Symfony bundle that exposes your Symfony routes to client-side JavaScript, letting you generate URLs with parameters in the browser like … | 62 | 1502 | active |
| accounts-js/accounts A suite of TypeScript packages providing fullstack authentication and accounts management for JavaScript applications, supporting GraphQL a… | 23 | 1502 | active |
| vimeo/player.js The official Vimeo Player API JavaScript library for embedding and programmatically controlling Vimeo video players via iframes. It exposes… | 87 | 1486 | active |
| AlphaYu/adnc ADNC is an open-source .NET 8 framework for building modular business systems that can start as modular monoliths and evolve into distribut… | 73 | 1476 | active |
| IBM Watson Node.js SDK The official Node.js/TypeScript client library (npm package ibm-watson) for accessing IBM Watson services such as Assistant, Speech to Text… | 84 | 1473 | active |
| wneessen/go-mail go-mail is a modern, feature-rich Go library for composing and sending email over SMTP. It provides mail composition, encoding, DKIM and S/… | 96 | 1471 | active |
| ankitpokhrel/tus-php TusPHP is a pure PHP implementation of both a server and a client for the tus resumable upload protocol v1.0.0. It enables reliable uploads… | 65 | 1470 | active |
| icebob/fastest-validator A schema-based data validation library for JavaScript with 24 built-in validators, sanitization, and custom validator support. It compiles … | 67 | 1463 | stable |
| submato/xhscrawl A Python-based reverse-engineering toolkit for Xiaohongshu (XHS) web APIs, focusing on generating the encrypted x-s signature parameter via… | 72 | 1452 | active |
| fsouza/fake-gcs-server fake-gcs-server is a Google Cloud Storage emulator that can run as a standalone binary/Docker image or be embedded as a Go library in test … | 99 | 1450 | active |
| Arksine/moonraker Moonraker is a Python-based web API server that exposes HTTP and WebSocket APIs for controlling and monitoring the Klipper 3D printer firmw… | 67 | 1449 | active |
| binarywang/weixin-java-miniapp-demo A Spring Boot demo application showcasing the WxJava library for building WeChat Mini Program backends in Java. It supports multiple mini p… | 61 | 1449 | active |
| v-modal/vmodal_sdk_flutter VModal for Flutter is a Dart/Flutter SDK that adds multimodal video search (semantic, ASR, and OCR based) and streamed video uploads to And… | 57 | 1448 | active |
| bootique/bootique Bootique is a minimally opinionated Java framework and launcher for building container-less runnable applications as collections of modules… | 76 | 1429 | active |
| lakekeeper/lakekeeper Lakekeeper is an Apache Iceberg REST Catalog implementation written in Rust that provides centralized access control, credential vending, a… | 91 | 1426 | active |
| devnen/Chatterbox-TTS-Server A self-hosted server wrapping Resemble AI's Chatterbox TTS models behind an OpenAI-compatible API with a modern web UI. It supports voice c… | 65 | 1420 | active |
| benoitc/hackney hackney is an HTTP client library for Erlang supporting HTTP/1.1, HTTP/2, and experimental HTTP/3, with connection pooling, streaming, asyn… | 98 | 1417 | active |
| apache/jena Apache Jena is a free and open-source Java framework for building Semantic Web and Linked Data applications. It provides an RDF API, a SPAR… | 77 | 1417 | stable |
| cydrobolt/polr Polr is a self-hostable, open-source URL shortening web application written in PHP on the Lumen framework, with a REST API and click analyt… | 23 | 5095 | maintenance |