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Search: openapi3 Β· clear

fastapi / fastapi

FastAPI framework, high performance, easy to learn, fast to code, ready for production

β˜… 103k Python today
usebruno / bruno

Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)

β˜… 48k JavaScript 1d ago
swagger-api / swagger-ui

Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.

β˜… 29k JavaScript today
OpenAPITools / openapi-generator

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

β˜… 27k Java today
Redocly / redoc

πŸ“˜ OpenAPI/Swagger-generated API Reference Documentation

β˜… 26k TypeScript today
swagger-api / swagger-codegen

swagger-codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition.

β˜… 18k Mustache today
apache / apisix

The Cloud-Native API Gateway and AI Gateway

β˜… 17k Lua πŸ”₯ today
scalar / scalar

Scalar is an open-source API platform:γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€πŸŒ Modern REST API Clientγ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€πŸ“– Beautiful API Referencesγ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€γ€€βœ¨ 1st-Class OpenAPI/Swagger Support

β˜… 16k TypeScript today
mockoon / mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

β˜… 8.4k TypeScript today
swagger-api / swagger-core

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

β˜… 7.5k Java 1d ago
stoplightio / prism

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

β˜… 5.1k TypeScript 8d ago
msgspec / msgspec

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

β˜… 4.2k Python today
juhaku / utoipa

Simple, Fast, Code first and Compile time generated OpenAPI documentation for Rust

β˜… 4.1k Rust today
getkin / kin-openapi

OpenAPI 3.0 and 3.1 and 3.2 (and Swagger v2) implementation for Go (parsing, converting, validation, and more)

β˜… 3.3k Go today
stoplightio / spectral

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.

β˜… 3.2k TypeScript today
stoplightio / elements

Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.

β˜… 2.5k TypeScript today
microcks / microcks

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project πŸš€

β˜… 2.1k Java today
VoidenHQ / voiden

Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.

β˜… 1.9k TypeScript 1d ago
go-fuego / fuego

Golang Fuego - Web framework generating OpenAPI 3 spec from source code - Pluggable to existing Gin & Echo APIs

β˜… 1.8k Go 1d ago
Redocly / redocly-cli

βš’οΈ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

β˜… 1.5k TypeScript today
rest-sh / restish

Restish is a CLI for interacting with REST-ish HTTP APIs with some nice features built-in

β˜… 1.4k Go 21d ago
sourcey / sourcey

Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.

β˜… 1.4k TypeScript today
marshmallow-code / apispec

A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification)..

β˜… 1.2k Python 12d ago
daveshanley / vacuum

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

β˜… 1.1k Go today
pb33f / libopenapi

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.

β˜… 881 Go 1d ago
apisyouwonthate / openapi.tools

The most comprehensive collection of quality OpenAPI tooling, curated by Phil Sturgeon and the team at APIs You Won't Hate.

β˜… 848 TypeScript 2d ago
cloudflare / chanfana

OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and more!

β˜… 770 TypeScript 1d ago
zuplo / zudoku

Framework for building high quality, interactive API documentation.

β˜… 606 TypeScript 1d ago
airtasker / spot

Spot is a concise, developer-friendly way to describe your API contract.

β˜… 567 TypeScript 5d ago
speakeasy-api / openapi-generation

Open-source OpenAPI SDK generator for building production-ready client libraries. Available under AGPL-3.0; contact Speakeasy for commercial licensing options.