Google Fonts Developer API

naftiko: 1.0.0-alpha2
info:
  label: Google Fonts Developer API
  description: The Google Fonts Developer API provides programmatic access to the metadata for all font families served by
    Google Fonts. It allows applications to query for available font families, retrieve details about variants, subsets, categories,
    and file URLs, and supports filtering, sorting, and variable font metadata.
  tags:
  - Google
  - Fonts
  - API
  created: '2026-05-06'
  modified: '2026-05-06'
capability:
  consumes:
  - type: http
    namespace: google-fonts
    baseUri: https://www.googleapis.com
    description: Google Fonts Developer API HTTP API.
    resources:
    - name: webfonts-v1-webfonts
      path: /webfonts/v1/webfonts
      operations:
      - name: listwebfonts
        method: GET
        description: Google Fonts Developer List Web Fonts
        inputParameters:
        - name: key
          in: query
          type: string
          required: true
          description: API key for authentication
        - name: sort
          in: query
          type: string
          description: Sort order for the font list.
        - name: family
          in: query
          type: string
          description: Filter by font family name.
        - name: subset
          in: query
          type: string
          description: Filter by character subset (e.g., latin, greek, cyrillic).
        - name: category
          in: query
          type: string
          description: Filter by font category.
        - name: capability
          in: query
          type: string
          description: Request additional capabilities like WOFF2, variable fonts (VF), or family tags.
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  exposes:
  - type: rest
    port: 8080
    namespace: google-fonts-rest
    description: REST adapter for Google Fonts Developer API.
    resources:
    - path: /webfonts/v1/webfonts
      name: listwebfonts
      operations:
      - method: GET
        name: listwebfonts
        description: Google Fonts Developer List Web Fonts
        call: google-fonts.listwebfonts
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    port: 9090
    namespace: google-fonts-mcp
    transport: http
    description: MCP adapter for Google Fonts Developer API for AI agent use.
    tools:
    - name: listwebfonts
      description: Google Fonts Developer List Web Fonts
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: google-fonts.listwebfonts
      with:
        key: tools.key
        sort: tools.sort
        family: tools.family
        subset: tools.subset
        category: tools.category
        capability: tools.capability
      inputParameters:
      - name: key
        type: string
        description: API key for authentication
        required: true
      - name: sort
        type: string
        description: Sort order for the font list.
      - name: family
        type: string
        description: Filter by font family name.
      - name: subset
        type: string
        description: Filter by character subset (e.g., latin, greek, cyrillic).
      - name: category
        type: string
        description: Filter by font category.
      - name: capability
        type: string
        description: Request additional capabilities like WOFF2, variable fonts (VF), or family tags.
      outputParameters:
      - type: object
        mapping: $.