> ## Documentation Index > Fetch the complete documentation index at: https://docs.centosfi.com/llms.txt > Use this file to discover all available pages before exploring further. # Get Order > Get a single order by ID with its fills. Returns complete order details including execution history. **Use Cases:** - Track order progress and execution quality - Reconcile fills for accounting - Debug rejected or partially filled orders ## OpenAPI ````yaml /openapi.json get /v1/orders/{order_id} openapi: 3.1.0 info: title: Centos Finance API contact: name: Centos Finance url: https://centosfi.com/ license: name: Proprietary version: 1.0.0 servers: - url: https://api.centosfi.com security: [] tags: - name: markets description: Search and discover prediction markets across Kalshi and Polymarket. - name: subaccounts description: >- Manage trading subaccounts. Each subaccount can have its own exchange credentials and positions. - name: positions description: View current portfolio positions across all connected exchanges. - name: fills description: Retrieve trade execution history and fill details. - name: prices description: Get historical price data and candlesticks from exchanges. - name: orders description: Place and manage orders on prediction market exchanges. - name: complex-orders description: >- Manage complex orders: conditional orders (take-profit and stop-loss), TWAP, and other advanced order types. paths: /v1/orders/{order_id}: get: tags: - orders summary: Get Order description: |- Get a single order by ID with its fills. Returns complete order details including execution history. **Use Cases:** - Track order progress and execution quality - Reconcile fills for accounting - Debug rejected or partially filled orders operationId: get_order_v1_orders__order_id__get parameters: - name: order_id in: path required: true schema: type: string format: uuid title: Order Id responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/OrderDetailResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' components: schemas: OrderDetailResponse: properties: centos_order_id: type: string format: uuid title: Centos Order Id description: Unique order identifier order_type: type: string title: Order Type description: 'Order type: LIMIT or MARKET' time_in_force: type: string title: Time In Force description: 'Time in force: FOK, GTC, GTD, or IOC' qty: type: number title: Qty description: Original order quantity price: anyOf: - type: number - type: 'null' title: Price description: Limit price (null for market orders) buy_flag: type: boolean title: Buy Flag description: 'Order direction: true=buy, false=sell' status: type: string title: Status description: >- Order status: PENDING_SUBMISSION, PROCESSING, RESTING, PARTIALLY_FILLED, EXECUTED, CANCELLED, REJECTED, or EXPIRED centos_id: anyOf: - type: integer - type: 'null' title: Centos Id description: Instrument ID custom_asset_id: anyOf: - type: string format: uuid - type: 'null' title: Custom Asset Id description: Custom asset basket UUID subaccount_id: type: string format: uuid title: Subaccount Id description: Subaccount the order belongs to expiry_ts_utc: anyOf: - type: string format: date-time - type: 'null' title: Expiry Ts Utc description: Expiry timestamp in UTC for GTD orders created_at: type: string format: date-time title: Created At description: Order creation timestamp (UTC) updated_at: type: string format: date-time title: Updated At description: Last update timestamp (UTC) traded_qty: type: number title: Traded Qty description: Total quantity filled default: 0 average_price: anyOf: - type: number - type: 'null' title: Average Price description: Volume-weighted average fill price fees_paid: type: number title: Fees Paid description: Total fees paid across all fills default: 0 complex_order_ids: additionalProperties: items: type: string format: uuid type: array type: object title: Complex Order Ids description: List of complex centos orders id reject_reason: anyOf: - type: string - type: 'null' title: Reject Reason description: Reason for rejection (if status is REJECTED) fills: items: $ref: '#/components/schemas/OrderFillResponse' type: array title: Fills description: List of executions (fills) for this order default: [] type: object required: - centos_order_id - order_type - time_in_force - qty - buy_flag - status - subaccount_id - created_at - updated_at - complex_order_ids title: OrderDetailResponse description: Schema for order detail response including fills. HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError OrderFillResponse: properties: centos_id: type: integer title: Centos Id description: Instrument ID exchange_order_id: type: string title: Exchange Order Id description: Exchange-assigned order ID exchange_trade_id: type: string title: Exchange Trade Id description: Exchange-assigned trade/fill ID exchange_timestamp: type: string format: date-time title: Exchange Timestamp description: Execution timestamp from exchange (UTC) price: type: number title: Price description: Execution price qty: type: number title: Qty description: Filled quantity fee: type: number title: Fee description: Fee charged by the exchange for this fill buy_flag: type: boolean title: Buy Flag description: 'Fill direction: true=buy, false=sell' is_maker: type: boolean title: Is Maker description: Whether this fill provided liquidity (maker) or took it (taker) type: object required: - centos_id - exchange_order_id - exchange_trade_id - exchange_timestamp - price - qty - fee - buy_flag - is_maker title: OrderFillResponse description: Schema for a single fill on an order. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError ````