action edrv_get_transaction_cost { label: "getTransactionCost" description: "Get a specific transaction's cost" provider: edrv method: GET path: "/v1/transactions/{id}/cost" encoding: json input: { type: "object" properties: { id: { type: "string" } } required: ["id"] additionalProperties: false } output: { type: "object" additionalProperties: true } }