Bullet Trading API

openapi: 3.1.0
info:
  title: Bullet Account Trading API
  description: REST API for the Bullet exchange. Provides Binance FAPI-compatible endpoints for trading, account management, and market data.
  contact:
    name: Bullet
    url: https://bullet.xyz
  license:
    name: Proprietary
  version: 0.1.0
servers:
- url: /
  description: Current server
- url: https://tradingapi.mainnet.bullet.xyz
  description: Mainnet
- url: https://tradingapi.testnet.bullet.xyz
  description: Testnet
- url: https://tradingapi.staging.bullet.xyz
  description: Staging
tags:
- name: Trading
paths:
  /fapi/v1/openOrder:
    get:
      tags:
      - Trading
      summary: Query Current Open Order
      operationId: query_open_order
      parameters:
      - name: symbol
        in: query
        required: true
        schema:
          type: string
      - name: orderId
        in: query
        required: false
        schema:
          type:
          - integer
          - 'null'
          format: int64
          minimum: 0
      - name: clientOrderId
        in: query
        required: false
        schema:
          type:
          - integer
          - 'null'
          format: int64
          minimum: 0
      - name: triggerOrderId
        in: query
        description: 'look up a user trigger order (STOP / TAKE_PROFIT) by its

          TriggerOrderId. mutually exclusive with `orderId` /

          `clientOrderId` — trigger orders use an independent id counter

          from regular orders in the rollup'
        required: false
        schema:
          type:
          - integer
          - 'null'
          format: int64
          minimum: 0
      - name: address
        in: query
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Open order information
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BinanceOrder'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '404':
          description: Market not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '502':
          description: Upstream service unavailable
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
  /fapi/v1/openOrders:
    get:
      tags:
      - Trading
      summary: Query All Open Orders
      operationId: query_open_orders
      parameters:
      - name: symbol
        in: query
        description: Trading pair symbol — optional, omit to return open orders across all markets
        required: false
        schema:
          type:
          - string
          - 'null'
      - name: address
        in: query
        description: Account address
        required: true
        schema:
          type: string
      responses:
        '200':
          description: List of open orders
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/BinanceOrder'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '404':
          description: Market not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '502':
          description: Upstream service unavailable
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
components:
  schemas:
    BinanceOrder:
      type: object
      required:
      - orderId
      - symbol
      - marketId
      - status
      - price
      - avgPrice
      - origQty
      - executedQty
      - cumQty
      - cumQuote
      - timeInForce
      - orderType
      - reduceOnly
      - closePosition
      - side
      - positionSide
      - workingType
      - priceProtect
      - origType
      - priceMatch
      - selfTradePreventionMode
      - goodTillDate
      - updateTime
      - isTrigger
      properties:
        avgPrice:
          type: string
          format: decimal
        clientOrderId:
          type:
          - string
          - 'null'
        closePosition:
          type: boolean
        cumQty:
          type: string
          format: decimal
        cumQuote:
          type: string
          format: decimal
        executedQty:
          type: string
          format: decimal
        goodTillDate:
          type: integer
          format: uint64
          minimum: 0
        isTrigger:
          type: boolean
          description: 'bullet extension: true when this row is a user trigger order

            (STOP / TAKE_PROFIT). `orderId` for triggers is drawn from the

            `TriggerOrderId` namespace, which is independent of the regular

            `OrderId` counter — use `(orderId, isTrigger)` as the composite key'
        marketId:
          type: integer
          format: uint16
          minimum: 0
        orderId:
          type: integer
          format: uint64
          minimum: 0
        orderType:
          type: string
          description: 'one of: `LIMIT`, `STOP`, `TAKE_PROFIT`'
        origQty:
          type: string
          format: decimal
        origType:
          type: string
          description: same as `orderType`
        pendingTpsl:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/PendingTpsl'
            description: 'reserved TP/SL pair attached to this parent limit order. only present

              while the parent is unfilled — once filled, the trigger orders are

              activated and listed independently'
        positionSide:
          type: string
        price:
          type: string
          format: decimal
        priceMatch:
          type: string
        priceProtect:
          type: boolean
        reduceOnly:
          type: boolean
        selfTradePreventionMode:
          type: string
        side:
          type: string
        status:
          type: string
          description: 'one of: NEW, PARTIALLY_FILLED, FILLED'
        stopPrice:
          type:
          - string
          - 'null'
          format: decimal
        symbol:
          type: string
        timeInForce:
          type: string
        updateTime:
          type: integer
          format: int64
        workingType:
          type: string
    ApiErrorDetail:
      oneOf:
      - $ref: '#/components/schemas/JsonValidationErrorDetail'
      - type: object
      description: 'Typed details body. Variant order is important for untagged

        deserialization: keep the more-specific shape (`JsonValidation`)

        before more-permissive ones. `Upstream` holds the upstream payload

        verbatim (object, string, array, number, etc.) so pre-PR clients

        reading `details.error` (or `details` directly) keep working.'
    TpslLeg:
      type: object
      required:
      - triggerOrderId
      - orderPrice
      - triggerPrice
      - priceCondition
      - orderType
      - timeInForce
      properties:
        orderPrice:
          type: string
          format: decimal
        orderType:
          type: string
          description: 'LIMIT (bullet''s TPSL legs are always limit orders — see `time_in_force`

            for the actual TIF behaviour)'
        priceCondition:
          type: string
          description: MARK_PRICE | ORACLE_PRICE | LAST_PRICE
        timeInForce:
          type: string
          description: 'GTC | GTX (post-only) | FOK | IOC — matches the parent BinanceOrder''s

            `timeInForce` shape'
        triggerOrderId:
          type: integer
          format: uint64
          description: the reserved TriggerOrderId this leg will activate as
          minimum: 0
        triggerPrice:
          type: string
          format: decimal
    JsonValidationErrorDetail:
      type: object
      description: 'One JSON shape failure: machine-readable `rule` + full serde

        message including line/column. Surfaced under `details` on the wire.'
      required:
      - rule
      - message
      properties:
        message:
          type: string
          example: 'invalid type: integer `24500000`, expected a string at line 4 column 30'
        rule:
          type: string
          example: wrong_type
    PendingTpsl:
      type: object
      required:
      - dynamicSize
      properties:
        dynamicSize:
          type: boolean
          description: 'if true, the activated trigger orders track the parent''s filled size;

            otherwise they use the size baked in at placement'
        sl:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/TpslLeg'
        tp:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/TpslLeg'
    ApiErrorResponse:
      type: object
      description: 'Structured API error response matching Bullet API format.


        All error responses from the trading API conform to this schema.'
      required:
      - status
      - message
      properties:
        details:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/ApiErrorDetail'
            description: Structured per-failure details. Shape depends on the variant.
        error_id:
          type:
          - string
          - 'null'
          description: Error identifier for support.
          example: 8b2e4d9f-7a1c-4f0e-9c5d-3e6a8b1c2d4f
        message:
          type: string
          description: Human-readable error message.
          example: 'Transaction validation failed: insufficient funds'
        status:
          type: integer
          format: uint16
          description: HTTP status code.
          example: 400
          minimum: 0