apidevtools

API Design Tool

OpenAPI Viewer

Parse and inspect OpenAPI specs in JSON or YAML.

OpenAPI Viewer

Parse OpenAPI specs in JSON or YAML and inspect endpoints quickly.

Overview

Paste an OpenAPI file to quickly review API info, available servers, and endpoint coverage before implementation work starts.

Examples

Parse YAML specification

Input

openapi: 3.0.3
info:
  title: Demo API
  version: 1.0.0

Output

Parsed API summary with title, version, servers, and paths.

List path methods

Input

paths:
  /users:
    get: {}
    post: {}

Output

Detected endpoints: GET /users, POST /users.

Use cases

  • Inspect unfamiliar API contracts quickly.
  • Review endpoint coverage before coding.
  • Share concise API summaries with teammates.

FAQ

Does it support both JSON and YAML?

Yes. The parser accepts both formats.

Can it validate full OpenAPI compliance?

No. It provides parsing and quick structural inspection.

What if no paths are found?

The tool parses metadata and reports that no endpoints were detected.

Can I copy a summary after parsing?

Yes. The generated summary can be copied.

Related tools

HTTP Status Codes ReferenceJSON to JSON Schema GeneratorJSON to TypeScript