Metals-API — Analytics

naftiko: 1.0.0-alpha2
info:
  label: Metals-API — Analytics
  description: 'Metals-API — Analytics. 4 operations. Lead operation: Get rate fluctuation. Self-contained Naftiko capability
    covering one Metals Api business surface.'
  tags:
  - Metals Api
  - Analytics
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    METALS_API_API_KEY: METALS_API_API_KEY
capability:
  consumes:
  - type: http
    namespace: metals-analytics
    baseUri: https://metals-api.com/api
    description: Metals-API — Analytics business capability. Self-contained, no shared references.
    resources:
    - name: fluctuation
      path: /fluctuation
      operations:
      - name: getfluctuation
        method: GET
        description: Get rate fluctuation
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: start_date
          in: query
          type: string
          required: true
        - name: end_date
          in: query
          type: string
          required: true
    - name: lowest-highest-date
      path: /lowest-highest/{date}
      operations:
      - name: getlowesthighest
        method: GET
        description: Get daily lowest and highest prices
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: date
          in: path
          type: string
          required: true
    - name: open-high-low-close-date
      path: /open-high-low-close/{date}
      operations:
      - name: getohlc
        method: GET
        description: Get OHLC data
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: date
          in: path
          type: string
          required: true
    - name: timeseries
      path: /timeseries
      operations:
      - name: gettimeseries
        method: GET
        description: Get rates over a time series
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: start_date
          in: query
          type: string
          required: true
        - name: end_date
          in: query
          type: string
          required: true
    authentication:
      type: apikey
      key: access_key
      value: '{{env.METALS_API_API_KEY}}'
      placement: query
  exposes:
  - type: rest
    namespace: metals-analytics-rest
    port: 8080
    description: REST adapter for Metals-API — Analytics. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/fluctuation
      name: fluctuation
      description: REST surface for fluctuation.
      operations:
      - method: GET
        name: getfluctuation
        description: Get rate fluctuation
        call: metals-analytics.getfluctuation
        with:
          start_date: rest.start_date
          end_date: rest.end_date
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/lowest-highest/{date}
      name: lowest-highest-date
      description: REST surface for lowest-highest-date.
      operations:
      - method: GET
        name: getlowesthighest
        description: Get daily lowest and highest prices
        call: metals-analytics.getlowesthighest
        with:
          date: rest.date
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/open-high-low-close/{date}
      name: open-high-low-close-date
      description: REST surface for open-high-low-close-date.
      operations:
      - method: GET
        name: getohlc
        description: Get OHLC data
        call: metals-analytics.getohlc
        with:
          date: rest.date
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/timeseries
      name: timeseries
      description: REST surface for timeseries.
      operations:
      - method: GET
        name: gettimeseries
        description: Get rates over a time series
        call: metals-analytics.gettimeseries
        with:
          start_date: rest.start_date
          end_date: rest.end_date
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: metals-analytics-mcp
    port: 9090
    transport: http
    description: MCP adapter for Metals-API — Analytics. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: get-rate-fluctuation
      description: Get rate fluctuation
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-analytics.getfluctuation
      with:
        start_date: tools.start_date
        end_date: tools.end_date
      outputParameters:
      - type: object
        mapping: $.
    - name: get-daily-lowest-and-highest
      description: Get daily lowest and highest prices
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-analytics.getlowesthighest
      with:
        date: tools.date
      outputParameters:
      - type: object
        mapping: $.
    - name: get-ohlc-data
      description: Get OHLC data
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-analytics.getohlc
      with:
        date: tools.date
      outputParameters:
      - type: object
        mapping: $.
    - name: get-rates-over-time-series
      description: Get rates over a time series
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-analytics.gettimeseries
      with:
        start_date: tools.start_date
        end_date: tools.end_date
      outputParameters:
      - type: object
        mapping: $.