SpecLynx
SpecLynx provides enterprise-ready API tooling for authors and maintainers of OpenAPI, AsyncAPI, and Arazzo specifications. Built by veterans with 15+ years of Swagger and OpenAPI development experience, SpecLynx products prioritize security (specs never leave your machine), accuracy, and developer productivity. Core products include a VS Code extension, browser-based editor, CLI, language service library, and the ApiDOM semantic parsing engine.
6 APIs
17 Features
API DesignAsyncAPIDeveloper ToolsJSON SchemaOpenAPIToolkitVSCode
Stop wrestling with OpenAPI specs. SpecLynx OpenAPI Toolkit delivers the most effective way to author and manage your API specs, bringing unprecedented ease, pinpoint accuracy, ...
A VS Code extension providing semantic editing, real-time validation, linting, and live preview for OpenAPI, AsyncAPI, and Arazzo specifications. Features context-aware autocomp...
A browser-based OpenAPI editor with real-time validation, smart autocompletion, and live preview. No installation required — runs entirely client-side with all processing in-bro...
A command-line interface for overlay operations, dereferencing, bundling, format conversion (JSON/YAML), and validation of OpenAPI, AsyncAPI, Arazzo, and JSON Schema documents.
An LSP-compatible npm library (@speclynx/apidom-ls) providing 13 intelligent editing capabilities for API description languages, including validation, completion, hover document...
A unified semantic parsing engine that underpins all SpecLynx products. ApiDOM parses OpenAPI, AsyncAPI, Arazzo, and JSON Schema specifications into a semantic data model with l...
aid: speclynx
url: >-
https://raw.githubusercontent.com/api-evangelist/speclynx/refs/heads/main/apis.yml
name: SpecLynx
description: >-
SpecLynx provides enterprise-ready API tooling for authors and maintainers of
OpenAPI, AsyncAPI, and Arazzo specifications. Built by veterans with 15+ years
of Swagger and OpenAPI development experience, SpecLynx products prioritize
security (specs never leave your machine), accuracy, and developer productivity.
Core products include a VS Code extension, browser-based editor, CLI, language
service library, and the ApiDOM semantic parsing engine.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
access: 3rd-Party
tags:
- API Design
- AsyncAPI
- Developer Tools
- JSON Schema
- OpenAPI
- Toolkit
- VSCode
created: '2026-01-02'
modified: '2026-05-02'
position: Consumer
segments:
- Developer Tools
- API Design
apis:
- aid: speclynx:speclynx
name: SpecLynx
tags:
- API Design
- Developer Tools
- OpenAPI
- Toolkit
- VSCode
humanURL: https://speclynx.com/
properties:
- url: https://speclynx.com/
type: Website
- url: https://speclynx.com/openapi-toolkit/
type: Documentation
- url: https://github.com/speclynx/vscode-openapi-toolkit
type: GitHubRepo
- url: https://marketplace.visualstudio.com/items?itemName=SpecLynx.vscode-openapi-toolkit
type: Marketplace
description: >-
Stop wrestling with OpenAPI specs. SpecLynx OpenAPI Toolkit delivers the most
effective way to author and manage your API specs, bringing unprecedented ease,
pinpoint accuracy, and unmatched power directly to your VSCode workflow. Supports
OpenAPI 2.0/3.0/3.1, AsyncAPI 2.x, Arazzo 1.x, and JSON Schema.
- aid: speclynx:openapi-toolkit
name: SpecLynx OpenAPI Toolkit
tags:
- API Design
- AsyncAPI
- Developer Tools
- Linting
- OpenAPI
- Spectral
- VSCode
humanURL: https://speclynx.com/openapi-toolkit/
properties:
- url: https://speclynx.com/openapi-toolkit/
type: Documentation
- url: https://marketplace.visualstudio.com/items?itemName=SpecLynx.vscode-openapi-toolkit
type: Marketplace
- url: https://open-vsx.org/extension/SpecLynx/vscode-openapi-toolkit
type: OpenVSX
- url: https://github.com/speclynx/vscode-openapi-toolkit
type: GitHubRepo
description: >-
A VS Code extension providing semantic editing, real-time validation, linting,
and live preview for OpenAPI, AsyncAPI, and Arazzo specifications. Features
context-aware autocompletion, Go to Definition, Find References, JSON/YAML
conversion, Spectral ruleset integration, and Scalar/SwaggerUI live preview.
Works on desktop VS Code, vscode.dev, github.dev, and GitHub Codespaces.
- aid: speclynx:editor
name: SpecLynx Editor
tags:
- API Design
- Browser
- Developer Tools
- OpenAPI
- Online Tool
humanURL: https://speclynx.com/editor/
properties:
- url: https://speclynx.com/editor/
type: Documentation
- url: https://editor.speclynx.com/
type: Portal
description: >-
A browser-based OpenAPI editor with real-time validation, smart autocompletion,
and live preview. No installation required — runs entirely client-side with
all processing in-browser. Supports OpenAPI 2.0, 3.0.x, and 3.1.x in both
JSON and YAML. Free and open-source under Apache 2.0.
- aid: speclynx:cli
name: SpecLynx CLI
tags:
- CLI
- Developer Tools
- JSON Schema
- OpenAPI
- Tooling
humanURL: https://speclynx.com/
properties:
- url: https://speclynx.com/
type: Documentation
description: >-
A command-line interface for overlay operations, dereferencing, bundling,
format conversion (JSON/YAML), and validation of OpenAPI, AsyncAPI,
Arazzo, and JSON Schema documents.
- aid: speclynx:language-service
name: SpecLynx Language Service
tags:
- API Design
- Developer Tools
- LSP
- Library
- OpenAPI
humanURL: https://speclynx.com/language-service/
properties:
- url: https://speclynx.com/language-service/
type: Documentation
description: >-
An LSP-compatible npm library (@speclynx/apidom-ls) providing 13 intelligent
editing capabilities for API description languages, including validation,
completion, hover documentation, Go to Definition, Find References, semantic
tokens, formatting, dereferencing, and format conversion. Composable with
any editor through an LSP wrapper.
- aid: speclynx:apidom
name: SpecLynx ApiDOM
tags:
- API Design
- Developer Tools
- Library
- OpenAPI
- Parser
humanURL: https://speclynx.com/apidom/
properties:
- url: https://speclynx.com/apidom/
type: Documentation
description: >-
A unified semantic parsing engine that underpins all SpecLynx products.
ApiDOM parses OpenAPI, AsyncAPI, Arazzo, and JSON Schema specifications
into a semantic data model with lossless preservation of comments, key
ordering, and source maps. Built on Tree-sitter for error recovery during
editing. Isomorphic — works identically in Node.js and browser environments.
common:
- url: https://speclynx.com/
name: Website | SpecLynx
type: Website
description: 'null'
- url: https://speclynx.com/openapi-toolkit/
name: OpenAPI Toolkit Documentation | SpecLynx
type: Documentation
description: 'null'
- url: https://marketplace.visualstudio.com/items?itemName=SpecLynx.vscode-openapi-toolkit
name: VS Code Marketplace | SpecLynx OpenAPI Toolkit
type: Marketplace
description: 'null'
- url: https://github.com/speclynx/vscode-openapi-toolkit
name: GitHub Repository | SpecLynx OpenAPI Toolkit
type: GitHubRepo
description: 'null'
- url: https://open-vsx.org/extension/SpecLynx/vscode-openapi-toolkit
name: Open VSX Registry | SpecLynx OpenAPI Toolkit
type: OpenVSX
description: 'null'
- url: mailto:[email protected]
name: Contact | SpecLynx
type: Contact
description: 'null'
- name: Features
type: Features
data:
- name: Semantic Editing
- name: Context-Aware Autocompletion
- name: Real-Time Validation
- name: Spectral Integration
- name: Semantic Validation
- name: Live Preview
- name: Scalar Renderer
- name: SwaggerUI Renderer
- name: Go to Definition
- name: Find References
- name: JSON/YAML Conversion
- name: Formatting
- name: Dereferencing
- name: Overlay Support
- name: No Telemetry
- name: Offline-First
- name: Multi-Spec Support
maintainers:
- FN: Kin Lane
email: [email protected]
specificationVersion: '0.19'