The Market-Data API from Bullet — 11 operation(s) for market-data.
9 of 11 operations are conformant: apis.io called them with no credentials and the responses matched this contract; 2 more answered but could not be checked against a schema. Checked 2026-11-12. how this works · status file
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openapi: 3.2.0
info:
title: Bullet Trading Market Data 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: Market Data
paths:
/fapi/v1/borrowLendPools:
get:
tags:
- Market Data
summary: Borrow Lend Pools - Doesnt exist in Binance
operationId: borrow_lend_pools
parameters:
- name: symbol
in: query
description: Symbol
required: false
schema:
type: string
responses:
'200':
description: BorrowLendPools
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/BorrowLendPoolResponse'
'400':
description: Bad request
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/depth:
get:
tags:
- Market Data
summary: Get orderbook
operationId: order_book
parameters:
- name: symbol
in: query
description: Symbol
required: true
schema:
type: string
example: BTC-USD
- name: limit
in: query
description: Limit (default 20, max 1000)
required: false
schema:
type: integer
format: int32
minimum: 0
example: 20
responses:
'200':
description: Order book
content:
application/json:
schema:
$ref: '#/components/schemas/OrderBook'
'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/exchangeInfo:
get:
tags:
- Market Data
summary: Get current exchange trading rules and symbol information
operationId: exchange_info
responses:
'200':
description: Exchange information
content:
application/json:
schema:
$ref: '#/components/schemas/ExchangeInfo'
'400':
description: Bad request
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/fundingInfo:
get:
tags:
- Market Data
summary: Funding rate metadata (caps, intervals) per symbol
operationId: funding_info
parameters:
- name: symbol
in: query
description: Symbol
required: false
schema:
type: string
responses:
'200':
description: Funding info
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/FundingInfo'
'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/fundingRate:
get:
tags:
- Market Data
summary: Latest price for a symbol or symbols
operationId: funding_rate
parameters:
- name: symbol
in: query
description: Symbol
required: false
schema:
type: string
responses:
'200':
description: Funding Rate
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/FundingRate'
'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/insuranceBalance:
get:
tags:
- Market Data
summary: Query Insurance Fund Balance Snapshot
operationId: insurance_balance
responses:
'200':
description: Insurance Fund Balance Snapshot
content:
application/json:
schema:
$ref: '#/components/schemas/InsuranceBalance'
'400':
description: Bad request
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/openInterest:
get:
tags:
- Market Data
summary: Open interest per market
operationId: open_interest
responses:
'200':
description: Open Interest
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/OpenInterest'
'400':
description: Bad request
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
'502':
description: Upstream service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
'503':
description: Historical data service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
/fapi/v1/premiumIndex:
get:
tags:
- Market Data
summary: Mark price, index price, and estimated funding rate per symbol
operationId: premium_index
parameters:
- name: symbol
in: query
description: Symbol
required: false
schema:
type: string
responses:
'200':
description: Premium index
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/PremiumIndex'
'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/ticker/24hr:
get:
tags:
- Market Data
summary: 24 hour rolling window price change statistics.
operationId: ticker_24hr
responses:
'200':
description: 24hr ticker statistics
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Ticker24hr'
'400':
description: Bad request
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
'502':
description: Upstream service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
'503':
description: Historical data service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
/fapi/v1/ticker/price:
get:
tags:
- Market Data
summary: Latest price for a symbol or symbols
operationId: ticker_price
parameters:
- name: symbol
in: query
description: Symbol
required: false
schema:
type: string
responses:
'200':
description: Price ticker
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/PriceTicker'
'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/trades:
get:
tags:
- Market Data
summary: Recent Trades List
operationId: recent_trades
parameters:
- name: symbol
in: query
description: Symbol
required: true
schema:
type: string
example: BTC-USD
- name: limit
in: query
description: Default 100; max 1000
required: false
schema:
type: integer
format: int32
example: 100
responses:
'200':
description: List of recent trades
content:
application/json:
schema:
type: array
items:
$ref: '#/components/schemas/Trade'
'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'
'502':
description: Upstream service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
'503':
description: Historical data service unavailable
content:
application/json:
schema:
$ref: '#/components/schemas/ApiErrorResponse'
components:
schemas:
PremiumIndex:
type: object
description: real-time mark price, index price, and estimated funding rate per symbol
required:
- symbol
- markPrice
- indexPrice
- lastFundingRate
- interestRate
- estimatedFundingRate
- nextFundingTime
- time
properties:
estimatedFundingRate:
type: string
format: decimal
description: pre-computed estimated 1h funding rate (8h rate ÷ 8) from current premium index accumulator
indexPrice:
type: string
format: decimal
interestRate:
type: string
format: decimal
lastFundingRate:
type: string
format: decimal
description: funding rate for 8h period
markPrice:
type: string
format: decimal
nextFundingTime:
type: integer
format: int64
description: unix timestamp ms of next hourly funding settlement
symbol:
type: string
time:
type: integer
format: int64
description: server time unix ms
ExchangeInfo:
type: object
required:
- rateLimits
- assets
- symbols
- globalConfig
properties:
assets:
type: array
items:
$ref: '#/components/schemas/Asset'
chainHash:
type:
- string
- 'null'
chainInfo:
oneOf:
- type: 'null'
- $ref: '#/components/schemas/ChainInfo'
globalConfig:
$ref: '#/components/schemas/GlobalConfigResponse'
rateLimits:
type: array
items:
$ref: '#/components/schemas/RateLimit'
symbols:
type: array
items:
$ref: '#/components/schemas/Symbol'
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
Filter:
oneOf:
- type: object
required:
- tickSize
- minPrice
- maxPrice
- filterType
properties:
filterType:
type: string
enum:
- PRICE_FILTER
maxPrice:
type: string
format: decimal
minPrice:
type: string
format: decimal
tickSize:
type: string
format: decimal
- type: object
required:
- stepSize
- minQty
- maxQty
- filterType
properties:
filterType:
type: string
enum:
- LOT_SIZE
maxQty:
type: string
format: decimal
minQty:
type: string
format: decimal
stepSize:
type: string
format: decimal
- type: object
required:
- limit
- filterType
properties:
filterType:
type: string
enum:
- MAX_NUM_ORDERS
limit:
type: integer
format: uint16
minimum: 0
- type: object
required:
- limit
- filterType
properties:
filterType:
type: string
enum:
- MAX_NUM_ALGO_ORDERS
limit:
type: integer
format: uint16
minimum: 0
- type: object
required:
- multiplierUp
- multiplierDown
- multiplierDecimal
- filterType
properties:
filterType:
type: string
enum:
- PERCENT_PRICE
multiplierDecimal:
type: string
multiplierDown:
type: string
format: decimal
multiplierUp:
type: string
format: decimal
Asset:
type: object
required:
- asset
- marginAvailable
- assetId
- decimals
- withdrawFee
properties:
asset:
type: string
assetId:
type: integer
format: uint16
minimum: 0
decimals:
type: integer
format: uint8
minimum: 0
marginAvailable:
type: boolean
tokenId:
type:
- string
- 'null'
userDepositLimit:
type: string
format: decimal
withdrawFee:
type: string
format: decimal
OpenInterest:
type: object
description: open interest for a single market
required:
- symbol
- openInterest
- time
properties:
openInterest:
type: string
format: decimal
symbol:
type: string
time:
type: integer
format: int64
RateLimit:
type: object
required:
- rateLimitType
- interval
- intervalNum
- limit
properties:
interval:
type: string
intervalNum:
type: integer
format: int32
limit:
type: integer
format: int32
rateLimitType:
type: string
RateParams:
type: object
required:
- optimal_utilisation_rate
- min_borrow_rate
- optimal_borrow_rate
- max_borrow_rate
properties:
max_borrow_rate:
type: string
format: decimal
min_borrow_rate:
type: string
format: decimal
optimal_borrow_rate:
type: string
format: decimal
optimal_utilisation_rate:
type: string
format: decimal
InsuranceBalance:
type: object
required:
- symbols
- assets
properties:
assets:
type: array
items:
$ref: '#/components/schemas/InsuranceAsset'
symbols:
type: array
items:
type: string
ChainInfo:
type: object
description: chain-level constants from the rollup
required:
- chainId
- chainName
- gasTokenId
- hyperlaneDomain
- addressPrefix
properties:
addressPrefix:
type: string
chainId:
type: integer
format: uint64
minimum: 0
chainName:
type: string
gasTokenId:
type: string
hyperlaneDomain:
type: integer
format: uint64
minimum: 0
Trade:
type: object
required:
- id
- price
- qty
- quoteQty
- time
- isBuyerMaker
properties:
id:
type: integer
format: int64
isBuyerMaker:
type: boolean
price:
type: string
format: decimal
qty:
type: string
format: decimal
quoteQty:
type: string
format: decimal
time:
type: integer
format: int64
FundingRate:
type: object
required:
- symbol
- fundingRate
- fundingTime
- markPrice
properties:
fundingRate:
type: string
format: decimal
fundingTime:
type: integer
format: int64
markPrice:
type: string
format: decimal
symbol:
type: string
BorrowLendPoolResponse:
type: object
required:
- asset
- assetId
- isActive
- lastUpdateTimestamp
- rateParams
- depositLimit
- borrowLimit
- availableAmount
- borrowedAmount
- cumulativeDepositRate
- cumulativeBorrowRate
- accumulatedProtocolFees
- unclaimedProtocolFees
- interestFeeTenthBps
properties:
accumulatedProtocolFees:
type: string
format: decimal
asset:
type: string
assetId:
type: integer
format: uint16
minimum: 0
availableAmount:
type: string
format: decimal
borrowLimit:
type: string
format: decimal
borrowedAmount:
type: string
format: decimal
cumulativeBorrowRate:
type: string
format: decimal
cumulativeDepositRate:
type: string
format: decimal
depositLimit:
type: string
format: decimal
interestFeeTenthBps:
type: integer
format: uint64
minimum: 0
isActive:
type: boolean
lastUpdateTimestamp:
type: integer
format: int64
rateParams:
$ref: '#/components/schemas/RateParams'
unclaimedProtocolFees:
type: string
format: decimal
FundingInfo:
type: object
description: funding rate metadata per symbol
required:
- symbol
- adjustedFundingRateCap
- adjustedFundingRateFloor
- fundingIntervalHours
properties:
adjustedFundingRateCap:
type: string
format: decimal
adjustedFundingRateFloor:
type: string
format: decimal
fundingIntervalHours:
type: integer
format: int32
minimum: 0
symbol:
type: string
InsuranceAsset:
type: object
required:
- asset
- marginBalance
- updateTime
properties:
asset:
type: string
marginBalance:
type: string
format: decimal
updateTime:
type: integer
format: int64
PriceTicker:
type: object
required:
- symbol
- price
- time
properties:
price:
type: string
format: decimal
symbol:
type: string
time:
type: integer
format: int64
GlobalConfigResponse:
type: object
required:
- maxOrdersPerUser
- maxTriggerOrdersPerUser
- maxTriggerOrdersToExecutePerMsg
- minNotionalTwapValue
- minNotionalTwapValuePerOrder
- twapExecutionIntervalSeconds
properties:
maxOrdersPerUser:
type: integer
format: uint16
minimum: 0
maxTriggerOrdersPerUser:
type: integer
format: uint16
minimum: 0
maxTriggerOrdersToExecutePerMsg:
type: integer
format: uint16
minimum: 0
minNotionalTwapValue:
type: string
format: decimal
minNotionalTwapValuePerOrder:
type: string
format: decimal
twapExecutionIntervalSeconds:
type: integer
format: uint64
minimum: 0
Ticker24hr:
type: object
required:
- symbol
- priceChange
- priceChangePercent
- weightedAvgPrice
- lastPrice
- openPrice
- highPrice
- lowPrice
- volume
- quoteVolume
- openTime
- closeTime
- count
properties:
closeTime:
type: integer
format: int64
count:
type: integer
format: int64
minimum: 0
highPrice:
type: string
format: decimal
lastPrice:
type: string
format: decimal
lowPrice:
type: string
format: decimal
openPrice:
type: string
format: decimal
openTime:
type: integer
format: int64
priceChange:
type: string
format: decimal
priceChangePercent:
type: string
format: decimal
quoteVolume:
type: string
format: decimal
symbol:
type: string
volume:
type: string
format: decimal
weightedAvgPrice:
type: string
format: decimal
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.'
Symbol:
type: object
required:
- marketId
- symbol
- pair
- contractType
- deliveryDate
- onboardDate
- status
- baseAsset
- baseAssetId
- quoteAsset
- marginAsset
- pricePrecision
- quantityPrecision
- baseAssetPrecision
- quotePrecision
- underlyingType
- underlyingSubType
- settlePlan
- triggerProtect
- filters
- orderTypes
- timeInForce
- liquidationFee
- marketTakeBound
- makerFeeBps
- takerFeeBps
properties:
baseAsset:
type: string
baseAssetId:
type: integer
format: uint16
minimum: 0
baseAssetPrecision:
type: integer
format: uint8
minimum: 0
contractType:
type: string
deliveryDate:
type: integer
format: int64
filters:
type: array
items:
$ref: '#/components/schemas/Filter'
liquidationFee:
type: string
format: decimal
makerFeeBps:
type: array
items:
type: string
marginAsset:
type: string
marketId:
type: integer
format: uint16
minimum: 0
marketTakeBound:
type: string
format: decimal
onboardDate:
type: integer
format: int64
orderTypes:
type: array
items:
type: string
pair:
type: string
pricePrecision:
type: integer
format: uint8
minimum: 0
quantityPrecision:
type: integer
format: uint8
minimum: 0
quoteAsset:
type: string
quotePrecision:
type: integer
format: uint8
minimum: 0
settlePlan:
type: integer
format: int32
status:
type: string
symbol:
type: string
takerFeeBps:
type: array
items:
type: string
timeInForce:
type: array
items:
type: string
triggerProtect:
type: string
format: decimal
underlyingSubType:
type: array
items:
type: string
underlyingType:
type: string
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
OrderBook:
type: object
required:
- lastUpdateId
- E
- T
- bids
- asks
properties:
E:
type: integer
format: int64
T:
type: integer
format: int64
asks:
type: array
items:
type: array
items: false
prefixItems:
- type: string
- type: string
bids:
type: array
items:
type: array
items: false
prefixItems:
- type: string
- type: string
lastUpdateId:
type: integer
format: uint64
minimum: 0