> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xentfi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Engine node health and shard leadership



## OpenAPI

````yaml /xentfi-pro/openapi.json get /v1/orderbook/status
openapi: 3.0.3
info:
  title: XentFi Pro API
  version: 1.0.0
  description: >-
    API documentation for XentFi Pro — programmatic liquidity and trading on
    XentFi's hybrid off-chain matching / on-chain settlement order book.
    Requires a Pro account and an API key with the Trade scope. See the XentFi
    Pro Overview and Authentication guides in this tab before making requests.
  contact:
    name: XentFi Pro Support
    email: support@xentfi.com
servers:
  - url: https://api.pro.xentfi.com
    description: XentFi Pro production server
security: []
tags:
  - name: OrderBook
    description: Place, list, cancel, and inspect orders and their fills.
  - name: OrderBook Markets
    description: Market configuration, order book depth, trades, ticker, and candles.
  - name: OrderBook Settlement
    description: Inspect on-chain settlement batches produced from matched trades.
  - name: OrderBook Ops
    description: Engine health/status and realtime (websocket) channel authorization.
paths:
  /v1/orderbook/status:
    get:
      tags:
        - OrderBook Ops
      summary: Engine node health and shard leadership
      operationId: getOrderBookStatus
      responses:
        '200':
          description: Health of the engine node handling this request
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    $ref: '#/components/schemas/OrderBookStatus'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      security:
        - ApiKeyAuth: []
          OrgIdAuth: []
components:
  schemas:
    OrderBookStatus:
      type: object
      properties:
        engineNodeId:
          type: string
        redisHealthy:
          type: boolean
        leadingShards:
          type: array
          items:
            type: object
            properties:
              marketId:
                type: string
              marketSymbol:
                type: string
              fencingToken:
                type: string
        totalActiveMarkets:
          type: integer
    ErrorResponse:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
              example: NOT_FOUND
            message:
              type: string
              example: Wallet not found
            timestamp:
              type: string
              format: date-time
            requestId:
              type: string
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: apiKey
    OrgIdAuth:
      type: apiKey
      in: header
      name: orgId

````