Open-source api-framework software
2097 open-source libraries, tools and applications tagged api-framework, ranked by how closely api-framework is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
2097 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Kimai Kimai is a professional open-source, web-based, multi-user time-tracking application built with PHP/Symfony. It supports timesheets, invoic… | 99 | 5078 | stable |
| v2board/v2board V2Board is a self-hosted web panel for managing multiple proxy protocols such as V2Ray, Shadowsocks, Trojan, VLESS, and Hysteria. It provid… | 23 | 5062 | active |
| sea-protocol/seaprotocol Sea Protocol is a decentralized exchange (DEX) protocol combining order-book and AMM trading, implemented in Move on the Aptos and Sui bloc… | 60 | 5040 | active |
| Bitcore Bitcore is a full-stack monorepo from BitPay providing infrastructure for building Bitcoin and blockchain-based applications, including a b… | 67 | 4982 | active |
| LibreNMS LibreNMS is a fully featured, community-driven GPL-licensed network monitoring system written in PHP with MySQL and SNMP. It auto-discovers… | 100 | 4966 | active |
| aldinokemal/go-whatsapp-web-multidevice GoWA is a self-hosted WhatsApp REST API service written in Go, exposing WhatsApp multi-device messaging over HTTP with a web UI, webhooks, … | 94 | 4898 | active |
| Laravel DataTables A Laravel package that handles the server-side processing for the jQuery DataTables plugin, supporting Eloquent ORM, Fluent Query Builder, … | 96 | 4872 | active |
| rachelos/we-mp-rss A self-hosted WeChat official account (公众号) subscription assistant that scrapes articles, generates RSS feeds, and converts content to Mark… | 83 | 4868 | active |
| LXD LXD is a system container and virtual machine manager that provides a unified, cloud-like experience for running full Linux systems in LXC … | 98 | 4836 | stable |
| Rasa Open Source Rasa Open Source is a Python-based framework for building text and voice conversational agents. It provides NLU, dialogue management, and i… | 62 | 21330 | maintenance |
| IntelOwl IntelOwl is an open-source, self-hosted application for managing threat intelligence at scale, querying many online analyzers and malware a… | 93 | 4759 | active |
| Blockscout Blockscout is an open-source blockchain explorer for inspecting and analyzing EVM-based chains, supporting Ethereum mainnet, L2s, sidechain… | 94 | 4735 | active |
| Strawberry GraphQL Strawberry is a developer-friendly GraphQL library for Python built on dataclasses and type hints. It lets you define GraphQL schemas with … | 92 | 4721 | active |
| webonyx/graphql-php A feature-complete PHP implementation of the GraphQL specification, based on the JavaScript reference implementation. It provides type syst… | 95 | 4715 | stable |
| usesend/useSend useSend is an open-source, self-hostable email sending platform built on Amazon SES, offering transactional and marketing email delivery wi… | 84 | 4700 | active |
| element-hq/synapse Synapse is the reference Matrix homeserver implementation maintained by Element, written in Python/Twisted with Rust components. It stores … | 93 | 4693 | stable |
| deuxfleurs-org/garage Garage is an S3-compatible distributed object storage service written in Rust, designed for self-hosting at small-to-medium scale. It repli… | 76 | 4678 | active |
| jishenghua/jshERP jshERP (管伊佳ERP) is an open-source ERP application for small and medium businesses, built on SpringBoot with a Vue frontend, focusing on pur… | 68 | 4661 | active |
| prest/prest pRESTd is a production-ready Go service that exposes instant REST APIs (and a read-only MCP endpoint) on top of any existing or new Postgre… | 100 | 4624 | stable |
| Cerbos Cerbos is an open-core, language-agnostic policy decision point (PDP) that externalizes authorization from application code using context-a… | 94 | 4616 | stable |
| spec-first/connexion Connexion is a Python web framework for spec-first (API-first) development, where the API is described in an OpenAPI/Swagger specification … | 77 | 4613 | active |
| activemerchant/active_merchant Active Merchant is a Ruby payment abstraction library extracted from Shopify that provides a unified API across dozens of payment gateways.… | 42 | 4602 | stable |
| IRS-Public/direct-file Direct File is the IRS's free, interview-based service for taxpayers to electronically file federal tax returns directly with the IRS. The … | 55 | 4593 | active |
| Knife4j Knife4j is an all-in-one enhancement solution for Swagger2 (OpenAPI2) and OpenAPI3 in the Java/Spring ecosystem, providing an improved API … | 48 | 4588 | 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… | 68 | 4535 | active |
| JoshuaC215/agent-service-toolkit A full toolkit for building and running an AI agent service using LangGraph, FastAPI, and Streamlit. It provides a template including a Lan… | 68 | 4531 | active |
| Judge0 Judge0 is an open-source, sandboxed online code execution system exposing a simple HTTP JSON API for compiling and running untrusted code i… | 68 | 4485 | active |
| Octobox Octobox is a web application that helps developers manage and triage GitHub notifications with an inbox-style interface, adding an archived… | 96 | 4484 | active |
| tdlib/telegram-bot-api An open-source C++ server that implements the Telegram Bot API as an HTTP service, built on TDLib. It can be self-hosted to run bots agains… | 73 | 4474 | active |
| GeoServer GeoServer is an open-source Java server for sharing, publishing, and editing geospatial data using OGC open standards. It is the reference … | 96 | 4473 | stable |
| spatie/laravel-query-builder A Laravel package that builds Eloquent queries from API request parameters, supporting filtering, sorting, field selection, and relationshi… | 100 | 4470 | stable |
| danielgtaylor/huma Huma is a modern micro-framework for building HTTP REST/RPC APIs in Go, backed by OpenAPI 3.1 and JSON Schema. It is router-agnostic (bring… | 94 | 4449 | active |
| muety/wakapi Wakapi is a minimalist, self-hosted WakaTime-compatible backend for tracking and visualizing coding statistics such as time spent per proje… | 92 | 4434 | active |
| rails/jbuilder Jbuilder is a Ruby gem providing a simple Builder-style DSL for declaring JSON structures, commonly used in Rails views via ..jbuilder temp… | 82 | 4421 | stable |
| Kinto/kinto Kinto is a minimalist self-hostable JSON document storage service with synchronisation and sharing capabilities, exposed over a REST HTTP A… | 100 | 4418 | active |
| Easy!Appointments Easy!Appointments is a self-hosted, open-source online appointment scheduling platform built with PHP and JavaScript. It lets businesses ma… | 80 | 4417 | stable |
| simplcommerce/SimplCommerce SimplCommerce is a free, open-source, cross-platform e-commerce system built on .NET with a modular (modulith) architecture. It provides a … | 58 | 4415 | active |
| GreaterWMS/GreaterWMS GreaterWMS is a fully open-source warehouse management system (WMS) covering inventory, inbound/outbound, and supply chain logistics, origi… | 87 | 4409 | active |
| Absinthe Absinthe is a complete, production-ready GraphQL implementation and toolkit for Elixir. It provides compile-time-verified schema macros, a … | 90 | 4398 | stable |
| Kroki Kroki is a unified HTTP API service that converts textual diagram descriptions (PlantUML, Mermaid, GraphViz, Ditaa, Excalidraw, and many mo… | 91 | 4354 | active |
| mpolden/echoip echoip is a lightweight Go service for looking up a client's IP address, with optional country, city, and ASN details via MaxMind GeoIP dat… | 74 | 4351 | active |
| ModelTC/LightLLM LightLLM is a Python-based LLM inference and serving framework designed for lightweight deployment, easy scalability, and high throughput. … | 82 | 4317 | active |
| Drupal Drupal is an open-source content management system (CMS) and PHP framework for building websites ranging from personal blogs to large enter… | 77 | 4292 | stable |
| cq-panda/Vue.NetCore A full-stack rapid development framework combining .NET/.NET8 backend with Vue2/Vue3 + Element Plus frontend and uniapp mobile support. It … | 66 | 4236 | active |
| marmotedu/iam IAM is an enterprise-grade identity and access management system written in Go, used to authenticate users and authorize access to resource… | 25 | 4213 | active |
| ericc-ch/copilot-api A reverse-engineered proxy that exposes the GitHub Copilot API as OpenAI and Anthropic compatible endpoints, letting any OpenAI/Anthropic-c… | 44 | 4148 | active |
| acacode/swagger-typescript-api A TypeScript tool that generates typed API clients for Fetch or Axios from OpenAPI 3.0/2.0 specifications in JSON or YAML. It can be used a… | 92 | 4124 | active |
| ardanlabs/service A Go starter kit from Ardan Labs for building production-grade, scalable web services using a domain-driven, data-oriented architecture des… | 76 | 4122 | active |
| Tolgee Tolgee is an open-source, web-based localization and translation management platform that developers can self-host via Docker. It offers in… | 93 | 4116 | active |
| swagger-api/swagger-codegen Swagger Codegen is a template-driven code generator that parses OpenAPI/Swagger definitions to produce API client SDKs, server stubs, and d… | 95 | 17789 | maintenance |
| erxes Erxes is an open-source, self-hostable 'Experience Operating System' (XOS) that unifies customer messaging, sales pipelines, marketing, ope… | 95 | 4094 | active |
| DailyHot API DailyHotApi is a TypeScript-based API service that aggregates trending/hot list data from many Chinese platforms (Bilibili, Weibo, Zhihu, D… | 53 | 4088 | active |
| Rapid-MLX Rapid-MLX is a local LLM inference engine for Apple Silicon Macs built on MLX, exposing a drop-in OpenAI/Anthropic-compatible API. It offer… | 79 | 4002 | active |
| Kubernetes The official Python client library for the Kubernetes API, generated from the OpenAPI spec and maintained by SIG API Machinery. It supports… | 100 | 4001 | active |
| Lightning-AI/LitServe LitServe is a Python framework for building custom AI inference servers with full control over batching, routing, streaming, and scaling lo… | 92 | 3956 | active |
| shopizer-ecommerce/shopizer Shopizer is an open-source Java e-commerce platform built on Spring Boot, providing headless commerce with a REST API covering catalog, sho… | 25 | 3942 | active |
| GMWalletApp/epusdt Epusdt (GM Pay) is a self-hosted, multi-chain crypto payment gateway written in Go that lets any website accept USDT, USDC, and other token… | 90 | 3887 | active |
| Pimcore Pimcore is an open core PHP framework and platform for Product Experience Management that unifies PIM, MDM, DAM, CDP, DXP/CMS, and digital … | 93 | 3855 | active |
| helm/chartmuseum ChartMuseum is an open-source Helm Chart Repository server written in Go that serves Helm charts and provides an API for uploading, listing… | 88 | 3850 | active |
| lanqian528/chat2api A Python service that proxies ChatGPT's web interface into an OpenAI-compatible API format, supporting GPT-3.5, GPT-4/4o, O1/O3 models, GPT… | 32 | 3839 | active |
| predibase/lorax LoRAX is a multi-LoRA inference server that serves thousands of fine-tuned LLM adapters on a single GPU by sharing a common base model. It … | 60 | 3835 | active |
| WPGraphQL WPGraphQL is a free, open-source WordPress plugin that exposes an extendable GraphQL schema and API for any WordPress site. It lets develop… | 95 | 3794 | active |
| EasyImages EasyImage2.0 is a self-hosted PHP image hosting (image bed) application that requires no database and returns image URLs, Markdown, BBCode,… | 64 | 3794 | active |
| swar/nba_api A Python API client package for accessing NBA.com's official stats and live game APIs. It wraps NBA.com endpoints with easy methods returni… | 79 | 3789 | active |
| deanxv/coze-discord-proxy A self-hosted Go service that proxies conversations to a Coze-Bot on Discord, exposing OpenAI-compatible API endpoints (v1/chat/completions… | 55 | 3778 | stable |
| seanmorley15/AdventureLog AdventureLog is a self-hosted, open-source travel tracker and trip planner that lets users log visited locations, plan multi-day itinerarie… | 84 | 3769 | active |
| tastyigniter/TastyIgniter TastyIgniter is a free, open-source, self-hosted restaurant management platform built on Laravel for online food ordering, table reservatio… | 96 | 3766 | active |
| lunarphp/lunar Lunar is an open-source headless e-commerce package for Laravel, providing product catalogs, carts, orders, payments, discounts, and taxati… | 97 | 3759 | active |
| upstash/jstack JStack is a lightweight, end-to-end typesafe framework for building fast Next.js 15 applications, built on Hono, Tailwind, and Drizzle ORM.… | 28 | 3743 | active |
| flasgger/flasgger Flasgger is a Flask extension that extracts OpenAPI (Swagger) specifications from Flask views using docstrings, YAML files, dictionaries, o… | 23 | 3743 | active |
| PHP-CRUD-API A single-file PHP script that automatically exposes a full-featured REST API on top of a MySQL/MariaDB, PostgreSQL, SQL Server, or SQLite d… | 94 | 3736 | stable |
| thunderclient/thunder-client-support Thunder Client is a lightweight REST API client extension for VS Code and JetBrains IDEs, offering GUI-based request testing, collections, … | 96 | 3725 | active |
| grpc-ecosystem/grpc-spring A Spring Boot starter that integrates the gRPC framework into Spring applications, auto-configuring gRPC servers for @GrpcService beans and… | 67 | 3706 | active |
| async-graphql A high-performance, fully specification-compliant GraphQL server library for Rust built on async/await. It integrates with web frameworks l… | 64 | 3685 | stable |
| LLOneBot/LuckyLilliaBot Lucky Lillia Bot (LLBot) is a QQ bot framework that implements the OneBot 11, Satori, and Milky protocols, letting bot frameworks like Kois… | 91 | 3676 | active |
| networknt/light-4j Light-4J is a fast, lightweight, cloud-native microservices framework for Java built on the Undertow HTTP core. It offers a small memory fo… | 94 | 3673 | active |
| Letta Code Letta is a platform for building stateful AI agents with persistent memory that can learn and improve over time. It provides a CLI, server,… | 81 | 3669 | active |
| AWX AWX is a web-based UI, REST API, and task engine built on top of Ansible, serving as the upstream project for Red Hat Ansible Automation Pl… | 68 | 15599 | maintenance |
| wa-automate A Node.js/TypeScript toolkit that turns a WhatsApp account into an HTTP API, bot runtime, webhook bridge, plugin host, and MCP server by au… | 95 | 3665 | active |
| PublicAffairs/openai-gemini A serverless proxy that translates OpenAI API requests into Google Gemini API calls, letting any OpenAI-only tool use Gemini's free tier. I… | 53 | 3664 | active |
| Athou/commafeed CommaFeed is a self-hosted RSS feed reader inspired by Google Reader, built with Quarkus (Java) and React/TypeScript. It supports thousands… | 97 | 3629 | active |
| nesquena/rabl RABL (Ruby API Builder Language) is a Ruby templating system for Rails and Padrino that generates JSON, XML, MessagePack, PList, and BSON A… | 63 | 3627 | stable |
| dtinit/data-transfer-project An open-source framework providing common data models and adapter libraries that enable direct service-to-service transfer of user data bet… | 67 | 3625 | active |
| kennethreitz/responder Responder is a Python HTTP service framework with a Flask/Falcon-style request-response model, built on Starlette and ASGI. It bundles batt… | 85 | 3617 | active |
| dunglas/vulcain Vulcain is a protocol and reference gateway server (a Caddy web server module written in Go) that uses Preload hints, 103 Early Hints, and … | 94 | 3595 | active |
| grafana/mcp-grafana A Model Context Protocol (MCP) server for Grafana that exposes Grafana instances and their ecosystem to AI assistants like Claude Desktop a… | 85 | 3584 | active |
| devise token auth A Ruby gem providing token-based authentication for Rails JSON APIs, built on Devise and OmniAuth. It supports multi-client sessions, token… | 71 | 3570 | active |
| elliotgao2/toapi A Python library that turns any website into a JSON API by declaring fields with CSS/XPath selectors. It fetches and parses pages on demand… | 73 | 3556 | active |
| Mesh-LLM/mesh-llm Mesh LLM is a Rust-based distributed LLM inference runtime that pools GPUs and memory across machines into a single OpenAI-compatible API. … | 79 | 3522 | active |
| Lighthouse Lighthouse is a GraphQL server framework that integrates with Laravel applications, letting you define your API schema using the GraphQL Sc… | 94 | 3498 | active |
| growchief/growchief GrowChief is an open-source, self-hostable social media automation and outreach tool that automates actions like sending connection request… | 37 | 3486 | active |
| fauxpilot/fauxpilot FauxPilot is a self-hosted, open-source alternative to the GitHub Copilot code completion server. It serves SalesForce CodeGen models via N… | 32 | 14676 | maintenance |
| MZCretin/RollToolsApi RollToolsApi is a free, long-maintained aggregated REST API service that provides commonly used data endpoints for developers, hosted on an… | 70 | 3479 | active |
| svix/svix-webhooks Svix is an open-source, enterprise-ready webhooks-as-a-service platform written in Rust that lets developers send webhooks with a single AP… | 96 | 3457 | active |
| Shopware Shopware 6 is an open-source headless commerce platform built on Symfony 7 and Vue.js 3, providing storefront, product catalog, checkout, C… | 94 | 3443 | stable |
| roapi/roapi ROAPI automatically spins up read-only REST, GraphQL, SQL, and FlightSQL query APIs over static or slowly moving datasets without writing a… | 74 | 3434 | active |
| Universal Commerce Protocol The Universal Commerce Protocol (UCP) is an open standard and specification for interoperable, agentic commerce, defining capabilities like… | 77 | 3420 | active |
| laravel/passport Laravel Passport is an OAuth2 server package for Laravel applications, built on the League OAuth2 server. It issues and manages access toke… | 99 | 3419 | active |
| apache/linkis Apache Linkis is a computation middleware layer that sits between upper-layer applications and underlying big data engines such as Spark, H… | 67 | 3412 | stable |
| endoflife.date A community-maintained website that aggregates end-of-life dates and support lifecycles for hundreds of products, including operating syste… | 77 | 3404 | active |