Launch VS Code Quick Open (Ctrl+P), paste and press enter:
ext install SpecLynx.vscode-openapi-toolkit
Enterprise ready API tooling
Messy API specs? Ship APIs with confidence.
In the age of AI, clean API specs matter more than ever.
- ✓ Supports OpenAPI 2, OpenAPI 3.0, OpenAPI 3.1, AsyncAPI 2.x, Arazzo 1.x, and JSON Schema
- ✓ Provides parsers, semantic data models, and building blocks for your own tooling
- ✓ Powers intelligent editing with a Language Service and ready-to-use VSCode extension
Enforce standards and consistency across teams with validation, linting, and custom rules.
Create custom tooling for your workflows. Parsers, validators, editors - your imagination is the limit.
Integrate with CI/CD pipelines. Validate specs on every commit, catch breaking changes before they ship.
One Ecosystem. Everything You Need.
SpecLynx is a complete TypeScript/JavaScript ecosystem for API specifications.
Start Here
OpenAPI Toolkit
VSCode Extension
Write specs faster with real-time validation, smart autocompletion, and instant preview - all inside VSCode.
- ✓ Context-aware autocompletion
- ✓ Instant error detection
- ✓ Live API preview
- ✓ Works in browser & desktop
For Tool Builders
Language Service
Build your own integrations with our LSP-compatible library. Add API spec intelligence to any editor or tool.
- ✓ 12+ LSP features
- ✓ Multi-spec support
- ✓ Easy to integrate
- ✓ 15+ years of Swagger/OpenAPI expertise
For Developers
ApiDOM
Parse any API spec into a unified structure. Build tooling that works across OpenAPI, AsyncAPI, Arazzo, and JSON Schema.
- ✓ One API for all specs
- ✓ Semantic parsing
- ✓ Query & traverse
- ✓ Format conversion
Need Enterprise Support?
Managing API specs at scale? We can help with priority support, custom integrations, and standardizing API practices across your organization.
- ✓ Priority support & SLAs
- ✓ Custom feature development
- ✓ Training & onboarding
- ✓ Architecture consulting
Secure by Design
- 🔒 Your specs never leave your machine
- 🔒 Offline-first architecture
- 🔒 No accounts, no tracking, no telemetry
Trusted by
Powering Arazzo Tools & API Scorecard
Built by API Tooling Veterans
The team behind SpecLynx has spent 15+ years building and maintaining Swagger and OpenAPI tools used by millions of developers. We know what works - and what doesn't.
Meet the team →