Spec Layer

API—OSS—FREEyesDOCS5/5
SL6.0#7 of 21
outWeb—Windows—Mac—Linux—Android—iOS

Ranked in Design System Software ·Free plan· paid from $7.99/mo

About

Spec Layer is ranked #7 of 21 in design system software on Inferse. It runs on Web. There is a free plan. Paid plans start at $7.99/mo.

Compared on design system software

Free plan
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Token management
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Component documentation
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Design tool sync
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Code sync
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Governance workflows
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Hosting
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Versioning
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Facts

Purpose
Spec Layer turns Figma components, variables, and styles into precise specifications for teams and AI coding agents.spec-layer.com · 30 Sept 2026
Canvas documentation
It creates component specifications and foundation references on the Figma canvas, including measurements, variants, anatomy, and token tables.spec-layer.com · 30 Sept 2026
AI context export
Component specifications can be copied for coding agents as YAML or Markdown, while variables and styles can be exported as DTCG JSON.spec-layer.com · 30 Sept 2026
Repository delivery
The CLI pulls published component specifications and design tokens into a repository and can export CSS custom properties for web projects.spec-layer.com · 30 Sept 2026
CLI requirement
The CLI requires Node.js 22 or newer.spec-layer.com · 30 Sept 2026
Output formats
The product supports canvas documentation, component YAML, component Markdown, foundation DTCG JSON, web CSS tokens, and canonical JSON.spec-layer.com · 30 Sept 2026
Integrations
Canonical JSON is provided for validation, inspection, and building integrations, while Teams plans include custom integration scoping.spec-layer.com · 30 Sept 2026
License
Spec Layer is MIT licensed.spec-layer.com · 30 Sept 2026
Privacy
The plugin has no user accounts, and deterministic measurements, states, anatomy, and tokens run locally in Figma without sending data elsewhere.spec-layer.com · 30 Sept 2026
AI data flow
When AI writing is requested, a derived component summary and sometimes a rendered image are sent through Spec Layer to Anthropic; foundation writing sends token names and resolved values without a component image.spec-layer.com · 30 Sept 2026
Security architecture
The backend runs on Cloudflare Workers, the Anthropic API key remains server-side, prompts, rendered images, and generated text are never logged, and payment cards are handled by Lemon Squeezy.spec-layer.com · 30 Sept 2026
Support
Spec Layer is maintained by an independent developer and support replies are expected within a few business days.spec-layer.com · 30 Sept 2026
Publishing limit
A published library has a 5 MB limit, and the Pro license can publish up to 10 libraries.spec-layer.com · 30 Sept 2026

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