CoinGecko Crypto Market Data API — Simple

naftiko: 1.0.0-alpha2
info:
  label: CoinGecko Crypto Market Data API — Simple
  description: 'CoinGecko Crypto Market Data API — Simple. 3 operations. Lead operation: Get coin price by IDs. Self-contained
    Naftiko capability covering one Coingecko business surface.'
  tags:
  - Coingecko
  - Simple
  created: '2026-05-19'
  modified: '2026-05-19'
binds:
- namespace: env
  keys:
    COINGECKO_API_KEY: COINGECKO_API_KEY
capability:
  consumes:
  - type: http
    namespace: crypto-market-data-simple
    baseUri: https://api.coingecko.com/api/v3
    description: CoinGecko Crypto Market Data API — Simple business capability. Self-contained, no shared references.
    resources:
    - name: simple-price
      path: /simple/price
      operations:
      - name: getsimpleprice
        method: GET
        description: Get coin price by IDs
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: include_market_cap
          in: query
          type: boolean
          description: Include market cap in the response
        - name: include_24hr_vol
          in: query
          type: boolean
          description: Include 24-hour trading volume in the response
        - name: include_24hr_change
          in: query
          type: boolean
          description: Include 24-hour price change percentage in the response
        - name: include_last_updated_at
          in: query
          type: boolean
          description: Include last updated timestamp in the response
        - name: precision
          in: query
          type: string
          description: Decimal precision for currency price values (0-18)
    - name: simple-supported_vs_currencies
      path: /simple/supported_vs_currencies
      operations:
      - name: getsimplesupportedvscurrencies
        method: GET
        description: Get supported vs currencies
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
    - name: simple-token_price-id
      path: /simple/token_price/{id}
      operations:
      - name: getsimpletokenprice
        method: GET
        description: Get token price by contract address
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
        inputParameters:
        - name: contract_addresses
          in: query
          type: string
          description: Comma-separated list of token contract addresses on the specified asset platform
          required: true
        - name: include_market_cap
          in: query
          type: boolean
          description: Include market cap in the response
        - name: include_24hr_vol
          in: query
          type: boolean
          description: Include 24-hour trading volume in the response
        - name: include_24hr_change
          in: query
          type: boolean
          description: Include 24-hour price change percentage in the response
        - name: include_last_updated_at
          in: query
          type: boolean
          description: Include last updated timestamp in the response
        - name: precision
          in: query
          type: string
          description: Decimal precision for currency price values (0-18)
    authentication:
      type: apikey
      key: x-cg-demo-api-key
      value: '{{env.COINGECKO_API_KEY}}'
      placement: header
  exposes:
  - type: rest
    namespace: crypto-market-data-simple-rest
    port: 8080
    description: REST adapter for CoinGecko Crypto Market Data API — Simple. One Spectral-compliant resource per consumed
      operation, prefixed with /v1.
    resources:
    - path: /v1/simple/price
      name: simple-price
      description: REST surface for simple-price.
      operations:
      - method: GET
        name: getsimpleprice
        description: Get coin price by IDs
        call: crypto-market-data-simple.getsimpleprice
        with:
          include_market_cap: rest.include_market_cap
          include_24hr_vol: rest.include_24hr_vol
          include_24hr_change: rest.include_24hr_change
          include_last_updated_at: rest.include_last_updated_at
          precision: rest.precision
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/simple/supported-vs-currencies
      name: simple-supported-vs-currencies
      description: REST surface for simple-supported_vs_currencies.
      operations:
      - method: GET
        name: getsimplesupportedvscurrencies
        description: Get supported vs currencies
        call: crypto-market-data-simple.getsimplesupportedvscurrencies
        outputParameters:
        - type: object
          mapping: $.
    - path: /v1/simple/token-price/{id}
      name: simple-token-price-id
      description: REST surface for simple-token_price-id.
      operations:
      - method: GET
        name: getsimpletokenprice
        description: Get token price by contract address
        call: crypto-market-data-simple.getsimpletokenprice
        with:
          contract_addresses: rest.contract_addresses
          include_market_cap: rest.include_market_cap
          include_24hr_vol: rest.include_24hr_vol
          include_24hr_change: rest.include_24hr_change
          include_last_updated_at: rest.include_last_updated_at
          precision: rest.precision
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    namespace: crypto-market-data-simple-mcp
    port: 9090
    transport: http
    description: MCP adapter for CoinGecko Crypto Market Data API — Simple. One tool per consumed operation, routed inline
      through this capability's consumes block.
    tools:
    - name: get-coin-price-ids
      description: Get coin price by IDs
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crypto-market-data-simple.getsimpleprice
      with:
        include_market_cap: tools.include_market_cap
        include_24hr_vol: tools.include_24hr_vol
        include_24hr_change: tools.include_24hr_change
        include_last_updated_at: tools.include_last_updated_at
        precision: tools.precision
      outputParameters:
      - type: object
        mapping: $.
    - name: get-supported-vs-currencies
      description: Get supported vs currencies
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crypto-market-data-simple.getsimplesupportedvscurrencies
      outputParameters:
      - type: object
        mapping: $.
    - name: get-token-price-contract-address
      description: Get token price by contract address
      hints:
        readOnly: true
        destructive: false
        idempotent: true
      call: crypto-market-data-simple.getsimpletokenprice
      with:
        contract_addresses: tools.contract_addresses
        include_market_cap: tools.include_market_cap
        include_24hr_vol: tools.include_24hr_vol
        include_24hr_change: tools.include_24hr_change
        include_last_updated_at: tools.include_last_updated_at
        precision: tools.precision
      outputParameters:
      - type: object
        mapping: $.