About This Tool

What does this tool do?

A formal API specification linting and exploration engine. It validates OpenAPI 3.0, 3.1, and Swagger 2.0 definitions against official schemas, identifying missing required fields, invalid parameter definitions, regex pattern errors, broken `$ref` schema pointers, duplicate paths, and security scheme omissions with line-numbered diagnostics. It also includes an interactive documentation preview, visual route mapper, and specification complexity analytics.

When should you use it?

Use this tool to validate API documentation before publishing, audit OpenAPI contracts in CI/CD build pipelines, test Swagger schemas for gateway compatibility, inspect endpoint trees, or debug documentation generation errors.

Key Capabilities & Features

Validate OpenAPI 3.0, 3.1, and Swagger 2.0 specifications in JSON and YAML with line-numbered diagnostics
Semantic schema constraint validation including regular expression patterns, min/max lengths, and data type boundaries
Broken and dangling $ref reference detection across nested schemas and component definitions
Interactive Swagger API Documentation viewer with live endpoint inspection and collapsible method cards
API Structure and Endpoint Hierarchy visualizer with method distribution and path grouping
Specification complexity analytics, security scheme validation, and file/remote URL import with Bearer/Basic/API Key auth
Export validated specifications to formatted JSON, YAML, or summary audit reports