1.open-webui / open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
Ranked by Attention Score: stars gained over the last 180 complete days
91 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
🚀 自托管的抖音、TikTok、B 站数据采集与无水印视频下载 API,支持 AI agent 通过 MCP 调用与离线语音转文字,Docker 一键部署。| Self-hosted TikTok, Douyin & Bilibili scraper and no-watermark video downloader — async REST API, MCP server for AI agents, CLI and web console, plus offline speech-to-text for downloaded videos. Self-healing identity pool, PostgreSQL archive, one docker compose up.
Full-stack web application template with FastAPI, React, SQLModel, PostgreSQL, Vite, Tailwind CSS, shadcn/ui, FastAPI Cloud, and Docker Compose.
Scalar is an open-source API platform: 🌐 Modern REST API Client 📖 Beautiful API References ✨ 1st-Class OpenAPI/Swagger Support
🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.
The Cloud-Native API Gateway and AI Gateway
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
The OpenAPI Specification Repository
Huma REST/HTTP API Framework for Golang with OpenAPI 3.1
Catch API bugs before your users do
Bichon – A lightweight, high-performance Rust email archiver with WebUI
📘 OpenAPI/Swagger-generated API Reference Documentation
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
Generate Go client and server boilerplate from OpenAPI 3 specifications
Light, flexible and extensible ASGI framework | Built to scale
Automatically generate RESTful API documentation with Swagger 2.0 for Go.
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
OpenAPI Diff and Breaking Changes
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
Input OpenAPI. Output SDKs and Docs.
gRPC to JSON proxy generator following the gRPC HTTP spec
Shuffle: A general purpose security automation platform. Our focus is on collaboration and resource sharing.
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.
A secure, efficient TCP/UDP tunneling solution that delivers fast, reliable access across network restrictions using pre-established TCP/QUIC/WebSocket or HTTP/2 connections.
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
Modern Laravel OpenAPI (Swagger) documentation generator. No PHPDoc annotations required.
The Standard Webhooks specification
multimodal routing, geocoding, and map tiles
Instant REST and MCP APIs for PostgreSQL and MySQL, on existing or new databases. CRUD, custom SQL routes, auth and ACL without writing a backend. Low-code, ⚡ realtime, high-performance. Native MySQL support since v2.5
⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.
vacuum is the worlds fastest and most versatile OpenAPI, Arazzo, AsyncAPI & JSON Schema linter, docs generator and toolkit. It tears through API specs at light speed. 100% compatible with Spectral rulesets, and OpenAPI 3.0, 3.1 and 3.2
🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.
Framework for building high quality, interactive API documentation.
Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.
Lightweight embeddable web server written in pure C# with few dependencies to 3rd-party libraries.
Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs
Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.
The Swagger/OpenAPI toolchain for .NET, ASP.NET Core and TypeScript.
API Gateway bridging modern and legacy APIs with WSDL-to-OpenAPI, SOAP-to-REST, XML, OAuth2, and GraphQL.
Design-first Go framework that generates API code, documentation, and clients. Define once in an elegant DSL, deploy as HTTP and gRPC services with zero drift between code and docs.
Library for OpenAPI 3 with spring-boot
The Arazzo Specification - A Tapestry for Deterministic API Workflows
libopenapi is a fully featured, high performance OpenAPI 3.2, 3.1, 3.0, Overlays and Arazzo parser, library, validator and toolkit for go applications.
Self-Hosted API Management for Builders
A curated list of awesome system integration software and resources.
Connexion is a modern Python web framework that makes spec-first and api-first development easy.
Pode is a Cross-Platform PowerShell web framework for creating REST APIs, Web Sites, and TCP/SMTP servers
Generates documentation for your REST API from attributes
The CLI for working with JSON Schema. Covers formatting, linting, testing, bundling, and more for both local development and CI/CD pipelines
A coverage-guided REST API fuzzer developed on top of LibAFL
Utility for comparing two OpenAPI specifications.
LoopBack makes it easy to build modern API applications that require complex integrations.
DreamFactory is a secure, self-hosted enterprise data access platform that provides governed API access to any data source, connecting enterprise applications and on-prem LLMs with role-based access and identity passthrough.
Shift-left API Integration | Auto-fix integration drift before integration. Specmatic turns API specifications into executable contracts, continuously verifying that every change made by AI coding agents and engineers stays true to the desired behaviour. Ship AI-ready APIs 10x faster, from intent to implementation, with Spec-Driven API Development.
🕸️ GraphQL Federation Framework for any API services such as REST, OpenAPI, Swagger, SOAP, gRPC and more...
A lightweight Python web API framework.
Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers
A REST API library with better functionality, performance, and scalability than refit
REST framework for Delphi: JAX-RS style resources and routes, servers and clients, JWT, OpenAPI 3, FireDAC and Devart UniDAC/MyDAC/IBDAC, SSE, MCP servers for AI agents. Windows, Linux, Docker.
⚡A lightweight, framework-agnostic OpenAPI 3.x specification builder for Go.
OpenAPI (f.k.a Swagger) Specification code generator. Supports C#, PowerShell, Go, Java, Node.js, TypeScript, Python
GUI / visual editor for creating and editing OpenAPI / Swagger definitions
package for building REST-style Web Services using Go
A fast, lightweight and more productive microservices framework
Zero-boilerplate REST API framework for PHP 8+. Auto-generates routes, docs, validation.
:seedling: Jane is a set of libraries to generate Models & API Clients based on JSON Schema / OpenAPI specs
pocketbase boilerplate
A curated list of awesome JSON Schema resources, tutorials, tools, and more
Next-generation HTTP router for Go 1.27+ with type-safe handlers, RFC 9457 errors, and built-in OpenAPI generation. Minimal dependencies, blazing performance.
Generate OpenAPI 3.1 specs from Go source code via static analysis — zero annotations, automatic framework detection
The best way to create REST APIs - Generate RESTful APIs from your GraphQL Server
Scriptable, multipurpose mock server. Run standalone mock servers, or embed mocks within your tests or CI/CD pipeline.
Feishu(飞书)/Lark Open API Go SDK, Support ALL Open API and Event Callback.
Sweet web apis with Compojure & Swagger
go-doudou(doudou pronounce /dəudəu/)is OpenAPI 3.0 (for REST) spec and Protobuf v3 (for grpc) based lightweight microservice framework. It supports monolith service application as well.
A customizable style validator to make sure your OpenAPI spec follows your organization's standards.
A minimalistic, simple-to-use API linter
adidas group API design guidelines
Ruby library for defining, generating and validating JSON Schema
Language-agnostic HTTP API Testing Tool
OpenAPI linting, diffing and testing. Optic helps prevent breaking changes, publish accurate documentation and improve the design of your APIs.
F# generative Type Provider for Swagger
Delightful code generator for OpenAPI specs
Type-safe Swift client for GitHub's REST API, generated from GitHub's official OpenAPI spec with Apple's Swift OpenAPI Generator. Auto-released monthly.
OpenAPI/Swagger 3.0 Parser and Swift code generator
Gradle plugin for OpenAPI YAML validation, code generation and API document publishing
#️⃣ PHP Slack Client based on the official OpenAPI specification