naftiko: 1.0.0-alpha2 info: label: Coinbase Prime API — Balances description: 'Coinbase Prime API — Balances. 1 operations. Lead operation: List portfolio balances. Self-contained Naftiko capability covering one Coinbase business surface.' tags: - Coinbase - Balances created: '2026-05-19' modified: '2026-05-19' binds: - namespace: env keys: COINBASE_API_KEY: COINBASE_API_KEY capability: consumes: - type: http namespace: prime-balances baseUri: https://api.prime.coinbase.com/v1 description: Coinbase Prime API — Balances business capability. Self-contained, no shared references. resources: - name: portfolios-portfolio_id-balances path: /portfolios/{portfolio_id}/balances operations: - name: listportfoliobalances method: GET description: List portfolio balances outputRawFormat: json outputParameters: - name: result type: object value: $. inputParameters: - name: symbols in: query type: string description: Filter by currency symbols authentication: type: apikey key: X-CB-ACCESS-KEY value: '{{env.COINBASE_API_KEY}}' placement: header exposes: - type: rest namespace: prime-balances-rest port: 8080 description: REST adapter for Coinbase Prime API — Balances. One Spectral-compliant resource per consumed operation, prefixed with /v1. resources: - path: /v1/portfolios/{portfolio-id}/balances name: portfolios-portfolio-id-balances description: REST surface for portfolios-portfolio_id-balances. operations: - method: GET name: listportfoliobalances description: List portfolio balances call: prime-balances.listportfoliobalances with: symbols: rest.symbols outputParameters: - type: object mapping: $. - type: mcp namespace: prime-balances-mcp port: 9090 transport: http description: MCP adapter for Coinbase Prime API — Balances. One tool per consumed operation, routed inline through this capability's consumes block. tools: - name: list-portfolio-balances description: List portfolio balances hints: readOnly: true destructive: false idempotent: true call: prime-balances.listportfoliobalances with: symbols: tools.symbols outputParameters: - type: object mapping: $.