Metals.Dev API — Rates

naftiko: 1.0.0-alpha2
info:
  label: Metals.Dev API — Rates
  description: 'Metals.Dev API — Rates. 2 operations. Lead operation: Get latest rates. Self-contained Naftiko capability
    covering one Metals Dev business surface.'
  tags:
  - Metals Dev
  - Rates
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    METALS_DEV_API_KEY: METALS_DEV_API_KEY
capability:
  consumes:
  - type: http
    namespace: metals-dev-rates
    baseUri: https://api.metals.dev/v1
    description: Metals.Dev API — Rates business capability. Self-contained, no shared references.
    resources:
    - name: latest
      path: /latest
      operations:
      - name: getlatest
        method: GET
        description: Get latest rates
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: currency
          in: query
          type: string
          description: Three-letter currency code. Defaults to USD.
        - name: unit
          in: query
          type: string
          description: Unit of measure (toz, g, kg, mt). Defaults to toz for precious metals and mt for industrial.
    - name: timeseries
      path: /timeseries
      operations:
      - name: gettimeseries
        method: GET
        description: Get historical timeseries
        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: api_key
      value: '{{env.METALS_DEV_API_KEY}}'
      placement: query
  exposes:
  - type: rest
    namespace: metals-dev-rates-rest
    port: 8080
    description: REST adapter for Metals.Dev API — Rates. One Spectral-compliant resource per consumed operation, prefixed
      with /v1.
    resources:
    - path: /v1/latest
      name: latest
      description: REST surface for latest.
      operations:
      - method: GET
        name: getlatest
        description: Get latest rates
        call: metals-dev-rates.getlatest
        with:
          currency: rest.currency
          unit: rest.unit
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/timeseries
      name: timeseries
      description: REST surface for timeseries.
      operations:
      - method: GET
        name: gettimeseries
        description: Get historical timeseries
        call: metals-dev-rates.gettimeseries
        with:
          start_date: rest.start_date
          end_date: rest.end_date
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: metals-dev-rates-mcp
    port: 9090
    transport: http
    description: MCP adapter for Metals.Dev API — Rates. One tool per consumed operation, routed inline through this capability's
      consumes block.
    tools:
    - name: get-latest-rates
      description: Get latest rates
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-dev-rates.getlatest
      with:
        currency: tools.currency
        unit: tools.unit
      outputParameters:
      - type: object
        mapping: $.
    - name: get-historical-timeseries
      description: Get historical timeseries
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: metals-dev-rates.gettimeseries
      with:
        start_date: tools.start_date
        end_date: tools.end_date
      outputParameters:
      - type: object
        mapping: $.