Spectral is an open-source JSON/YAML linter by Stoplight with built-in support for OpenAPI 3.x, Swagger 2.0, AsyncAPI 2.x, and Arazzo 1.0. It enforces API style guides through custom and pre-built rulesets, ensuring consistency across all your API descriptions.
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Added June 2, 2026
ai-agentsgogitapisecuritydocumentation
Works with
claude code
terminal
cli
api
Security analysis
A92/100
mediumInstalls packages at runtime which could introduce malicious dependencies
Installs into .claude/skills of the current project.
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---
name: "Spectral OpenAPI and AsyncAPI Linter"
slug: "spectral-openapi-asyncapi-linter"
description: "Spectral is an open-source JSON/YAML linter by Stoplight with built-in support for OpenAPI 3.x, Swagger 2.0, AsyncAPI 2.x, and Arazzo 1.0. It enforces API style guides through custom and pre-built rulesets, ensuring consistency across all your API descriptions."
github_stars: 3057
verification: "security_reviewed"
source: "https://github.com/stoplightio/spectral"
author: "Stoplight"
category: "Code Quality & Review"
framework: "Claude Code"
tool_ecosystem:
github_repo: "stoplightio/spectral"
github_stars: 3057
npm_package: "@stoplight/spectral-cli"
npm_weekly_downloads: 1201267
---
# Spectral OpenAPI and AsyncAPI Linter
Spectral is an open-source JSON/YAML linter by Stoplight with built-in support for OpenAPI 3.x, Swagger 2.0, AsyncAPI 2.x, and Arazzo 1.0. It enforces API style guides through custom and pre-built rulesets, ensuring consistency across all your API descriptions.
## Installation
Use the upstream install or setup path that matches your environment:
- npm install -g @stoplight/spectral-cli
- yarn global add @stoplight/spectral-cli
Basic usage or getting-started notes:
- [💻 Usage](#-usage)
- ## 💻 Usage
- To get started, run this command in your terminal to create a .spectral.yaml file that uses the Spectral predefined rulesets based on OpenAPI, Arazzo or AsyncAPI:
- Source: https://github.com/stoplightio/spectral
- Extracted from upstream docs: https://raw.githubusercontent.com/stoplightio/spectral/HEAD/README.md
## Documentation
- https://docs.stoplight.io/docs/spectral/674b27b261c3c-overview
## Source
- [Agent Skill Exchange](https://agentskillexchange.com/skills/spectral-openapi-asyncapi-linter/)
