domain: apis
2838 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| bucket4j/bucket4j Bucket4j is a Java rate-limiting library based on the token-bucket algorithm, offering lock-free, high-precision integer arithmetic impleme… | 88 | 2790 | stable |
| opensolon/solon Solon is a Java enterprise application development framework built from scratch as a lighter, faster alternative to Spring Boot/Spring Clou… | 95 | 2774 | active |
| handsontable/hyperformula HyperFormula is an open-source headless spreadsheet engine written in TypeScript that parses and evaluates Excel-compatible spreadsheet for… | 94 | 2771 | active |
| manifold-systems/manifold Manifold is a Java compiler plugin that extends the Java language at compile time with features like extension methods, properties, operato… | 76 | 2759 | active |
| Bytez-com/docs Bytez is a serverless model inference platform offering a unified API with a single key to run 175k+ open and closed-source AI models (LLMs… | 56 | 2718 | active |
| join-monster/join-monster Join Monster is a JavaScript library that acts as a query execution layer between GraphQL and SQL databases, translating GraphQL queries in… | 39 | 2701 | active |
| huggingface/text-generation-inference Text Generation Inference (TGI) is a Rust, Python and gRPC toolkit for deploying and serving large language models with high performance, p… | 10 | 10889 | maintenance |
| yzcheng90/x-springboot X-SpringBoot is a lightweight Java rapid development platform built on Spring Boot 3 and JDK 21 with virtual threads, offering RBAC permiss… | 57 | 2692 | active |
| Bouncy Castle Bouncy Castle is a comprehensive open-source cryptographic library for Java (and C#/.NET) implementing a wide range of algorithms, a JCA/JC… | 77 | 2683 | stable |
| sunscrapers/djoser Djoser is a Python library providing REST endpoints for Django's authentication system via Django REST Framework. It offers views for regis… | 88 | 2681 | active |
| openai/openai-dotnet The official .NET library for accessing the OpenAI REST API, generated from the OpenAPI specification in collaboration with Microsoft. It p… | 86 | 2674 | active |
| Ontos-AI/knowhere Knowhere is a document ingestion and parsing platform that transforms unstructured documents (PDF, DOCX, XLSX, PPTX, images) into structure… | 81 | 2673 | active |
| ealush/vest Vest is a declarative validation framework for JavaScript/TypeScript that lets you write validation rules like unit tests using a Jest-styl… | 92 | 2665 | active |
| wendux/ajax-hook A lightweight JavaScript library that intercepts browser HTTP requests made via XMLHttpRequest, letting you hook into requests before they … | 32 | 2659 | stable |
| dolthub/go-mysql-server A MySQL-compatible SQL engine and server written in Go that runs queries over arbitrary data sources using the MySQL dialect and wire proto… | 70 | 2652 | active |
| useautumn/autumn Autumn is an open-source billing and pricing platform that acts as a control layer between Stripe and your application, managing subscripti… | 65 | 2649 | active |
| vercel/micro Micro is a minimal asynchronous HTTP framework for building microservices in Node.js using async/await. It provides a tiny, dependency-ligh… | 60 | 10625 | maintenance |
| google/googlesql GoogleSQL (formerly ZetaSQL) is a C++ analyzer framework that defines a SQL language—grammar, types, data model, semantics, and function li… | 92 | 2638 | active |
| Netflix/falcor Falcor is a JavaScript library that lets you represent all remote data sources as a single virtual JSON graph model, fetching data efficien… | 50 | 10569 | maintenance |
| medplum/medplum Medplum is an open-source developer platform for building compliant healthcare applications, providing a FHIR-native clinical data reposito… | 95 | 2630 | active |
| metatool-ai/metamcp MetaMCP is a self-hosted MCP proxy that aggregates multiple MCP servers into a unified MCP endpoint, with namespaces, tool cherry-picking, … | 70 | 2628 | active |
| OpenLineage/OpenLineage OpenLineage is an open standard and framework for collecting data lineage metadata, defining a generic model of jobs, runs, and datasets wi… | 97 | 2626 | active |
| auth0/angular2-jwt An Angular library that provides an HttpInterceptor to automatically attach JSON Web Tokens to HttpClient requests. It handles token attach… | 67 | 2624 | active |
| symfony/service-contracts A set of PHP interfaces and abstractions extracted from Symfony components, defining contracts for writing services that decouple code from… | 90 | 2611 | stable |
| risesoft-y9/Digital-Infrastructure Digital-Infrastructure (数字底座) is a Java/Spring Boot + Vue 3 rapid development platform for large government and enterprise digital transfor… | 75 | 2608 | active |
| lexik/LexikJWTAuthenticationBundle A Symfony bundle that provides JSON Web Token (JWT) authentication for Symfony APIs. It handles token creation, validation, and integration… | 71 | 2608 | stable |
| openflagr/flagr Flagr is an open-source Go microservice for feature flagging, A/B testing, and dynamic configuration, built around a single evaluation API … | 98 | 2606 | active |
| clj-commons/aleph Aleph is a Clojure library for asynchronous network communication built on Netty, providing an HTTP server and client plus raw TCP and UDP … | 77 | 2590 | active |
| youlaitech/vue3-element-admin An enterprise-grade admin dashboard frontend template built with Vue 3, Vite, TypeScript, and Element Plus, serving as the Vue 3 successor … | 72 | 2574 | active |
| eventflow/EventFlow EventFlow is an async/await-first CQRS and event sourcing framework for .NET, built around domain-driven design concepts like aggregates, c… | 80 | 2564 | active |
| ymyuuu/IPDB IPDB is a hosted API service that provides curated lists of Cloudflare official and reverse-proxy (preferred) IP addresses, updated in real… | 71 | 2554 | active |
| jolibrain/deepdetect DeepDetect is an open-source deep learning runtime, CLI, and REST server written in C++ for training and inference across images, text, tab… | 95 | 2551 | active |
| Wire Wire is an open-source, end-to-end encrypted messaging and collaboration platform whose server components are written primarily in Haskell.… | 59 | 2544 | active |
| agronholm/anyio AnyIO is a high-level asynchronous concurrency and networking library for Python that runs on top of either asyncio or Trio. It provides Tr… | 93 | 2537 | stable |
| leookun/cursor-byok cursor-byok is an open-source local implementation of Cursor's backend that runs a gateway service on your machine, connecting the Cursor e… | 81 | 2537 | active |
| fleetbase/fleetbase Fleetbase is an open-source, modular logistics and supply chain operating system (LSOS) providing fleet management, dispatch, route optimiz… | 94 | 2533 | active |
| saleem-hadad/larecipe LaRecipe is a Laravel package for writing beautiful, code-driven product documentation in Markdown directly inside a Laravel application. I… | 85 | 2513 | active |
| aspnet-contrib/AspNet.Security.OAuth.Providers A collection of ASP.NET Core authentication middleware providing OAuth 2.0 social login providers such as GitHub, Twitter/X, and Dropbox. I… | 80 | 2508 | active |
| huggingface/huggingface.js A collection of TypeScript JavaScript libraries for interacting with the Hugging Face ecosystem, including Hub repository management, unifi… | 94 | 2501 | active |
| pingcap/ossinsight OSSInsight is a web analytics platform that analyzes over 10 billion GitHub events to provide rankings, trends, and comparisons of open sou… | 67 | 2498 | active |
| google/go-cloud The Go Cloud Development Kit (Go CDK) is a Go library providing stable, vendor-neutral APIs for common cloud services like blob storage, do… | 86 | 9910 | maintenance |
| synctv-org/synctv SyncTV is a self-hosted Rust server for real-time synchronized video watching with rooms, chat, and livestreaming (RTMP/HLS/HTTP-FLV/RTSP).… | 94 | 2474 | active |
| xusenlinzy/api-for-open-llm A Python server that exposes open-source large language models (LLaMA, ChatGLM, Qwen, Baichuan, Falcon, etc.) behind an OpenAI-compatible A… | 20 | 2460 | active |
| exceptionless/Exceptionless Exceptionless is an open-source real-time error monitoring and reporting service for .NET, JavaScript, and Node applications, with clients … | 99 | 2455 | active |
| go-eagle/eagle Eagle is a lightweight Go microservice framework for rapidly building HTTP and gRPC API services. It bundles production-grade components in… | 62 | 2429 | active |
| ballerine-io/ballerine Ballerine is an open-source infrastructure and data orchestration platform for identity verification (KYC/KYB), fraud prevention, and merch… | 74 | 2426 | active |
| munafio/chatify Chatify is a Laravel package that adds real-time chat to any Laravel application, including direct messages, group conversations, voice not… | 66 | 2423 | active |
| AWS Amplify AWS Amplify is a declarative JavaScript library for frontend and mobile developers building cloud-enabled applications, providing easy inte… | 94 | 9557 | maintenance |
| Django-CRM/Django-CRM BottleCRM (Django-CRM) is a free, MIT-licensed, self-hosted, multi-tenant CRM built on Django REST Framework with a SvelteKit web app and a… | 98 | 2394 | active |
| RSocket RSocket Java is the reference Java implementation of the RSocket application protocol, a binary protocol for Reactive Streams semantics ove… | 26 | 2388 | stable |
| hwi/HWIOAuthBundle A Symfony bundle that adds OAuth 1.0a and OAuth 2.0 authentication support, with built-in support for 59 providers such as Google, GitHub, … | 77 | 2365 | active |
| stephengpope/no-code-architects-toolkit A self-hostable Flask-based API that consolidates common media processing tasks—video editing, captioning, audio conversion, transcription,… | 50 | 2339 | active |
| samanhappy/mcphub MCPHub is a self-hosted hub that centrally manages multiple Model Context Protocol (MCP) servers and exposes them through unified Streamabl… | 82 | 2333 | active |
| knuckleswtf/scribe Scribe is a PHP/Laravel package that automatically generates human-friendly API documentation from a Laravel codebase. It produces a single… | 94 | 2329 | active |
| deskree-inc/blok Blok is an open-source TypeScript framework for building lightweight, modular, and scalable backend applications using nanoservices. It pro… | 64 | 2323 | active |
| Anakin-Inc/anakin AnakinScraper OSS is a self-hosted web scraping API written in Go that turns any website into LLM-ready markdown or structured JSON via a s… | 73 | 2302 | active |
| ladjs/lad Lad is a Node.js MVC web framework built on Koa, created by a former Express TC and Koa team member. It provides an opinionated full-stack … | 47 | 2287 | active |
| php-fig/event-dispatcher php-fig/event-dispatcher holds the official PSR-14 interfaces describing the components of an event dispatcher in PHP. It is a specificatio… | 32 | 2284 | stable |
| oiov/wr.do WR.DO is a self-hostable all-in-one domain services platform built with Next.js that bundles short link generation, unlimited domain-based … | 69 | 2280 | active |
| 8treenet/freedom Freedom is a Go framework built on hexagonal architecture (ports and adapters) that supports domain-driven design with rich domain models. … | 93 | 2272 | active |
| MarquezProject/marquez Marquez is an open-source metadata service for collecting, aggregating, and visualizing a data ecosystem's metadata. It serves as the refer… | 67 | 2268 | active |
| liferay/liferay-portal Liferay DXP (formerly Liferay Portal) is a Java-based digital experience platform combining a CMS, DAM, portals, commerce, search, personal… | 74 | 2263 | active |
| apex/up Up is a command-line tool that deploys serverless applications, APIs, and static sites to AWS Lambda and API Gateway in seconds, supporting… | 23 | 8792 | maintenance |
| AppMetrics/AppMetrics App Metrics is an open-source, cross-platform .NET library for recording and reporting application metrics such as gauges, counters, meters… | 38 | 2249 | active |
| monksoul/Furion Furion is a batteries-included application framework for .NET/C# that simplifies building web APIs and enterprise applications with feature… | 94 | 2236 | active |
| openmeterio/openmeter OpenMeter is an open-source metering and billing platform for AI, API, and DevOps products that ingests high-volume usage events, aggregate… | 95 | 2231 | active |
| mootdx/mootdx A Python library that wraps Tongdaxin (TDX) financial data access, providing simple interfaces for reading offline TDX data files and fetch… | 23 | 2228 | active |
| mozilla/neqo Neqo is Mozilla's Rust implementation of the QUIC transport protocol, HTTP/3, and QPACK, used in production by Firefox and usable standalon… | 99 | 2220 | active |
| learnhouse/learnhouse LearnHouse is a next-generation open-source learning management system (LMS) for creating, sharing, and selling educational content. It com… | 99 | 2203 | active |
| jwt-dotnet/jwt Jwt.Net is a C# library for generating, encoding, decoding, and validating JSON Web Tokens (JWT) per RFC 7519. It includes fluent builder A… | 92 | 2194 | stable |
| samchon/nestia Nestia is a set of helper libraries for NestJS that turns plain TypeScript types into runtime validation, a typed client SDK, OpenAPI/Swagg… | 95 | 2172 | active |
| mozilla-ai/any-llm any-llm is a Python library from Mozilla.ai that provides a single, unified interface for calling many LLM providers (OpenAI, Anthropic, Mi… | 80 | 2171 | active |
| thinkcmf/thinkcmf ThinkCMF is an open-source content management framework built on ThinkPHP 8, supporting both PHP-FPM and Swoole modes. It provides a multi-… | 47 | 2156 | active |
| kythe/kythe Kythe is a pluggable, mostly language-agnostic ecosystem for building tools that work with code, providing a standard schema and interchang… | 86 | 2147 | active |
| Kludex/mangum Mangum is a Python adapter that runs ASGI applications (FastAPI, Starlette, Quart, Django, etc.) inside AWS Lambda. It translates API Gatew… | 95 | 2131 | active |
| smartwalle/alipay A Go SDK for integrating with the Alipay payment platform, supporting both public key certificate and plain public key signing/verification… | 75 | 2113 | active |
| Leanmcp/superview.sh A shell-based setup for the LeanMCP AI Gateway, a hosted proxy that routes Claude Code (and other AI coding tools) requests through a singl… | 48 | 2112 | active |
| zone-eu/wildduck WildDuck is a scalable, no-single-point-of-failure IMAP/POP3 email server built on Node.js that stores all mail in sharded and replicated M… | 99 | 2109 | active |
| Hydrogen Hydrogen is a React-based framework from Shopify for building custom, dynamic storefronts powered by Shopify's commerce APIs. It provides s… | 95 | 2100 | active |
| prometheus-net/prometheus-net prometheus-net is a .NET library for instrumenting application code with Prometheus metrics such as counters, gauges, histograms, and summa… | 23 | 2094 | active |
| Foso/Ktorfit Ktorfit is an HTTP client generator for Kotlin Multiplatform that uses KSP (Kotlin Symbol Processing) to create type-safe API clients from … | 95 | 2081 | active |
| macrozheng/mall-tiny mall-tiny is a rapid development scaffold based on SpringBoot and MyBatis-Plus with complete role-based permission management built in. It … | 57 | 2081 | active |
| travisvn/openai-edge-tts A self-hosted Python service that emulates the OpenAI text-to-speech API endpoint (/v1/audio/speech) using Microsoft Edge's free online TTS… | 26 | 2066 | active |
| ipinfo/cli The official command-line client for the IPinfo.io API, written in Go. It lets users look up IP geolocation, ASN, privacy detection, and re… | 73 | 2058 | active |
| suyuan32/simple-admin-core Simple Admin is a Go-based distributed microservice backend framework built on go-zero, Ent, and Casbin for rapidly building admin manageme… | 98 | 2055 | active |
| ali-sdk/ali-oss The official-style JavaScript SDK for Alibaba Cloud OSS (Object Storage Service), usable in both Node.js and browsers. It provides async AP… | 56 | 2041 | active |
| YosemiteCrew/Yosemite-Crew Yosemite Crew is an open-source, self-hostable Practice Information Management System (PIMS) for veterinary clinics, kennels, and grooming … | 87 | 2031 | active |
| commanded/commanded Commanded is an Elixir framework for building applications using the CQRS (Command Query Responsibility Segregation) and Event Sourcing (ES… | 91 | 2030 | stable |
| eclipse-openvsx/openvsx Eclipse Open VSX is a vendor-neutral, open-source registry for VS Code extensions, serving as an alternative to the Visual Studio Marketpla… | 95 | 2022 | active |
| bufanyun/hotgo HotGo is an enterprise-grade full-stack admin development platform built on GoFrame 2 (Go) and Vue 3 + Naive UI + uniapp, designed for rapi… | 69 | 2021 | active |
| nitrictech/nitric Nitric is a multi-language framework for building cloud backends with infrastructure declared inline in application code. It provisions res… | 69 | 2014 | active |
| qicosmos/rest_rpc rest_rpc is a modern C++20, header-only, high-performance RPC framework built on standalone asio and coroutines. It makes TCP-based remote … | 74 | 2012 | active |
| authgear/authgear-server Authgear is an open-source customer identity and access management (CIAM) platform serving as a self-hostable alternative to Auth0, Clerk, … | 95 | 2010 | active |
| authorizerdev/authorizer Authorizer is an open-source, self-hosted authentication and authorization server written in Go, providing OAuth2/OIDC, SAML SSO, MFA, soci… | 98 | 1984 | active |
| mikenicholson/passport-jwt passport-jwt is a Passport authentication strategy for Node.js that authenticates HTTP requests using JSON Web Tokens. It extracts a JWT fr… | 32 | 1980 | active |
| manfredsteyer/angular-oauth2-oidc A TypeScript library adding OAuth 2, OAuth 2.1, and OpenID Connect support to Angular applications. It handles token issuance, validation, … | 93 | 1979 | stable |
| graphql-editor/graphql-zeus GraphQL Zeus is a TypeScript-first GraphQL client and code generator that produces strongly typed clients from a GraphQL schema. It offers … | 57 | 1976 | active |
| apache/ossie Apache Ossie (incubating, formerly Open Semantic Interchange) is a vendor-neutral JSON/YAML specification for exchanging semantic metadata—… | 61 | 1971 | active |
| dghubble/gologin gologin is a Go library providing chainable http.Handler implementations for login flows with OAuth1 and OAuth2 providers like Google, GitH… | 67 | 1959 | stable |
| oidc-client-ts oidc-client-ts is a TypeScript library providing OpenID Connect (OIDC) and OAuth2 protocol support for browser-based JavaScript application… | 82 | 1944 | active |