Openapi Spec Validator Mock Server 2

Name: Openapi Spec Validator Mock Server 2
Author: agentskillexchange

ASecurity

Validates OpenAPI 3.x specifications using the swagger-parser library and generates Prism mock servers. Detects schema inconsistencies, missing examples, and generates SDK client stubs via openapi-generator.

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Added June 8, 2026

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SKILL.md

---
name: "OpenAPI Spec Validator & Mock Server"
slug: "openapi-spec-validator-mock-server-2"
description: "Validates OpenAPI 3.x specifications using the swagger-parser library and generates Prism mock servers. Detects schema inconsistencies, missing examples, and generates SDK client stubs via openapi-generator."
github_stars: 4925
verification: "security_reviewed"
source: "https://github.com/stoplightio/prism"
author: "stoplightio"
category: "Library & API Reference"
framework: "Codex"
tool_ecosystem:
  github_repo: "stoplightio/prism"
  github_stars: 4925
---

# OpenAPI Spec Validator & Mock Server

Validates OpenAPI 3.x specifications using the swagger-parser library and generates Prism mock servers. Detects schema inconsistencies, missing examples, and generates SDK client stubs via openapi-generator.

## Installation

Use the upstream install or setup path that matches your environment:
- npm install -g @stoplight/prism-cli

Requirements and caveats from upstream:
- Prism requires
- **Cannot access mock server when using Docker?**
- Prism uses localhost by default, which usually means 127.0.0.1. When using docker the mock server will

Basic usage or getting-started notes:
- Prism is an open-source HTTP server run from the command-line. It provides mocking, request validation, and content negotiation. Use it standalone tool or in continuous integration.
- This information refers to Open Source Prism 3.x, which is the current version most likely you will use. If you're looking for the 2.x version, look at the [2.x branch][2.x]
- NodeJS >= 18.20.1

- Source: https://github.com/stoplightio/prism
- Extracted from upstream docs: https://raw.githubusercontent.com/stoplightio/prism/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/openapi-spec-validator-mock-server-2/)