Hugging Face Dataset Viewer API — Data Access

naftiko: 1.0.0-alpha2
info:
  label: Hugging Face Dataset Viewer API — Data Access
  description: 'Hugging Face Dataset Viewer API — Data Access. 2 operations. Lead operation: Get First Rows of a Split. Self-contained
    Naftiko capability covering one Hugging Face business surface.'
  tags:
  - Hugging Face
  - Data Access
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    HUGGING_FACE_API_KEY: HUGGING_FACE_API_KEY
capability:
  consumes:
  - type: http
    namespace: dataset-viewer-data-access
    baseUri: https://datasets-server.huggingface.co
    description: Hugging Face Dataset Viewer API — Data Access business capability. Self-contained, no shared references.
    resources:
    - name: first-rows
      path: /first-rows
      operations:
      - name: getfirstrows
        method: GET
        description: Get First Rows of a Split
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: dataset
          in: query
          type: string
          description: The dataset ID
          required: true
        - name: config
          in: query
          type: string
          description: The subset (configuration) name
          required: true
        - name: split
          in: query
          type: string
          description: The split name
          required: true
    - name: rows
      path: /rows
      operations:
      - name: getrows
        method: GET
        description: Get a Slice of Rows
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: dataset
          in: query
          type: string
          description: The dataset ID
          required: true
        - name: config
          in: query
          type: string
          description: The subset (configuration) name
          required: true
        - name: split
          in: query
          type: string
          description: The split name
          required: true
        - name: offset
          in: query
          type: integer
          description: Row offset to start from
        - name: length
          in: query
          type: integer
          description: Number of rows to return (max 100)
    authentication:
      type: bearer
      token: '{{env.HUGGING_FACE_API_KEY}}'
  exposes:
  - type: rest
    namespace: dataset-viewer-data-access-rest
    port: 8080
    description: REST adapter for Hugging Face Dataset Viewer API — Data Access. One Spectral-compliant resource per consumed
      operation, prefixed with /v1.
    resources:
    - path: /v1/first-rows
      name: first-rows
      description: REST surface for first-rows.
      operations:
      - method: GET
        name: getfirstrows
        description: Get First Rows of a Split
        call: dataset-viewer-data-access.getfirstrows
        with:
          dataset: rest.dataset
          config: rest.config
          split: rest.split
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/rows
      name: rows
      description: REST surface for rows.
      operations:
      - method: GET
        name: getrows
        description: Get a Slice of Rows
        call: dataset-viewer-data-access.getrows
        with:
          dataset: rest.dataset
          config: rest.config
          split: rest.split
          offset: rest.offset
          length: rest.length
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: dataset-viewer-data-access-mcp
    port: 9090
    transport: http
    description: MCP adapter for Hugging Face Dataset Viewer API — Data Access. One tool per consumed operation, routed inline
      through this capability's consumes block.
    tools:
    - name: get-first-rows-split
      description: Get First Rows of a Split
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: dataset-viewer-data-access.getfirstrows
      with:
        dataset: tools.dataset
        config: tools.config
        split: tools.split
      outputParameters:
      - type: object
        mapping: $.
    - name: get-slice-rows
      description: Get a Slice of Rows
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: dataset-viewer-data-access.getrows
      with:
        dataset: tools.dataset
        config: tools.config
        split: tools.split
        offset: tools.offset
        length: tools.length
      outputParameters:
      - type: object
        mapping: $.