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Font {API}

Detect the fonts any website uses, from just a domain.

Get font families, weights, styles, sources (Google Fonts, Adobe, self-hosted), and usage context. Perfect for branded dashboards, white-labeled templates, and design tooling.

No card required

View Documentation

What You Get

Each API call returns structured font data from the target website.

Font families

Primary and fallback fonts with full stack

Weights & styles

Usage counts and percentages across elements and words

Font sources

Resolved Google or custom font files when available

Usage evidence

Selectors and element types where each family appears

How It Works

We analyze stylesheets and web font imports to accurately detect typography.

— step 01 —

Pass a domain

Like airbnb.com or any company website

— step 02 —

We scan stylesheets

CSS files, inline styles, @font-face, and web font imports

— step 03 —

Fonts categorized

By family, fallbacks, selectors, and usage counts

— step 04 —

JSON returned

Structured typography data ready for use

API Response

Extracted typography for context.dev

GET /v1/web/fonts?domain=context.dev

Try in API Playground

{
  "status": "ok",
  "domain": "context.dev",
  "fonts": [
    {
      "font": "Inter",
      "uses": ["body", "p", "button"],
      "fallbacks": ["sans-serif"],
      "num_elements": 42,
      "num_words": 318,
      "percent_words": 82.4,
      "percent_elements": 77.8
    }
  ],
  "fontLinks": {
    "Inter": { "type": "google", "files": { "400": "https://fonts.gstatic.com/..." }, "category": "sans-serif" }
  },
  "code": 200
}

Frequently asked questions

Common questions about the Context.dev Font API.

Am I billed for failed requests?

No. You are not billed for failed requests or requests where we are blocked (rarely happens). Credits are only consumed on successful responses.

What font information does the API return?

Each fonts entry includes a family name, where it is used, fallback families, element and word counts, and their percentages. When resolvable, fontLinks contains Google or custom font files keyed by weight.

What happens with custom or proprietary fonts?

The API can report the observed custom font name and, when a usable @font-face URL is available, include it under fontLinks. It does not generate or recommend substitute fonts, and you remain responsible for font licensing.

Is the Font API free?

Work-email signups get 500 one-time API credits at 30 req/min; personal-email signups get 250 one-time credits at 10 req/min. Fonts costs 5 credits and Brand Retrieve costs 10, so 500 credits cover 33 complete font-and-brand pairs with 5 credits left.

How does the Font API detect fonts on a website?

The API renders the page in a headless browser, then walks the computed style tree to read the actual fontFamily applied to headings, body, and UI elements. It also parses @font-face declarations, link tags to Google Fonts / Adobe Fonts, and @import rules — so the response reflects what users really see, not just what is declared in the source CSS.

Can the API identify what font a website uses?

Yes. Pass a domain or direct URL and inspect fonts[] to see the rendered font families and their observed usage. The response reports evidence rather than assigning guaranteed semantic heading/body roles.

Does the Font API work for Google Fonts and Adobe Fonts?

Resolved fontLinks entries are classified as google or custom and can include files keyed by weight. Fonts may still appear in fonts[] without a downloadable link.

Am I billed for failed requests?

No. You are not billed for failed requests or requests where we are blocked (rarely happens). Credits are only consumed on successful responses.

How does the Font API detect fonts on a website?

What font information does the API return?

Can the API identify what font a website uses?

What happens with custom or proprietary fonts?

Does the Font API work for Google Fonts and Adobe Fonts?

Resolved fontLinks entries are classified as google or custom and can include files keyed by weight. Fonts may still appear in fonts[] without a downloadable link.

Is the Font API free?

Ship an agent that actually knows things.

Free tier, 10-minute integration, and the same API powering agents at Mintlify, daily.dev, and Propane. No credit card to start.

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