Boros Historical Data

Market Data (market-data/)

Hourly snapshots of market state.

Field	Type	Description
timestamp	number	Unix timestamp
datetime	string	ISO 8601 datetime
blockNumber	number	Arbitrum block number
midApr	number	Mid APR (average of best bid and best ask)
bestBid	number | null	Best bid rate (highest long order)
bestAsk	number | null	Best ask rate (lowest short order)
ammImpliedApr	number | null	AMM implied APR
markApr	number	Mark APR (on-chain mark rate)
notionalOI	number | null	Notional open interest
lastTradedApr	number | null	Rate of the most recent trade

{"timestamp":1754006400,"datetime":"2025-08-01T00:00:00.000Z","blockNumber":363657956,"midApr":0.07625,"bestBid":0.07605,"bestAsk":0.07637,"ammImpliedApr":0.07625,"markApr":0.07615,"notionalOI":51,"lastTradedApr":0.07615}

Trades (market-trades/)

Individual trade events.

Field	Type	Description
eventIndex	number	On-chain event index
blockTimestamp	number	Unix timestamp of the block
datetime	string	ISO 8601 datetime
rate	number	Trade rate (implied APR)
side	string	Taker side: "long" or "short"
size	number	Absolute trade size
txHash	string	Transaction hash

{"eventIndex":363716829000015,"blockTimestamp":1754021093,"datetime":"2025-08-01T04:04:53.000Z","rate":0.07332,"side":"short","size":0.005,"txHash":"0x2578..."}

OHLCV Candles (ohlcv/)

Available in three timeframes: 5m, 1h, 1d.

Field	Type	Description
periodStartTimestamp	number	Unix timestamp of candle start
datetime	string	ISO 8601 datetime
open	number	Opening rate (implied APR)
high	number	Highest rate in the period
low	number	Lowest rate in the period
close	number	Closing rate
volume	number	Total absolute trade size

{"periodStartTimestamp":1754020800,"datetime":"2025-08-01T04:00:00.000Z","open":0.07332,"high":0.07332,"low":0.07332,"close":0.07332,"volume":0.005}

Order Book — Raw (order-book/{market}/raw/)

Full order book snapshots with individual tick entries.

Field	Type	Description
blockNumber	number	Arbitrum block number
blockTimestamp	number	Unix timestamp
datetime	string	ISO 8601 datetime
long	object[]	Bid side entries (sorted by rate descending)
short	object[]	Ask side entries (sorted by rate ascending)

Each entry in long / short:

Field	Type	Description
rate	number	Implied APR at this tick
tick	number	On-chain tick index
size	number	Notional size at this tick

Order Book — Combined (order-book/{market}/combined_{tickSize}/)

Order book merged with AMM liquidity, aggregated by tick size. Available tick sizes: 0.00001, 0.0001, 0.001, 0.01, 0.1.

Field	Type	Description
timestamp	number	Unix timestamp
datetime	string	ISO 8601 datetime
blockNumber	number	Arbitrum block number
long	object[]	Bid side entries, grouped by tick size
short	object[]	Ask side entries, grouped by tick size

Each entry in long / short:

Field	Type	Description
rate	number	Implied APR (tick index x tick size)
size	number	Aggregated notional size at this level