Total bid depth
Updated
What is Total bid depth?
Total bid depth is a market-data metric BlackForge measures for every listed pair on nine spot exchanges, once per closed five-minute window. All resting buy liquidity in the order book we maintain for that venue. It reports what the order book or trade tape showed, not what price will do next.
The facts
| Unit | quote |
|---|---|
| Family | Depth bands |
| Key | downDepthFull |
| Quote-relative | Yes |
| Nullable | No |
| Plottable | Yes |
| Available from | Max plan |
Live across all nine venues
Total bid depth for BTC-USDT, as measured in the latest closed window on each venue. Observed . A venue with no reading for this window shows an em dash — nothing is invented.
| Venue | Symbol | Total bid depth |
|---|---|---|
| Binance | BTCUSDT | 311,787,124 |
| Bitget | BTCUSDT | 11,923,012 |
| Bybit | BTCUSDT | 6,246,761 |
| Coinbase | BTC-USDT | 1,958,805 |
| Gate | BTC_USDT | 21,936,530 |
| Kraken | BTCUSDT | 6,183,637 |
| Kucoin | BTC-USDT | 30,514,932 |
| Mexc | BTCUSDT | 10,426,449 |
| Okx | BTC-USDT | 5,374,171 |
Query it
Total bid depth is one field on the wide row /v1/latest returns for a pair. Set $BF to the API base and read it at .values.downDepthFull:
curl -H "x-api-key: $BLACKFORGE_API_KEY" \
"$BF/v1/latest?exchange=binance&symbol=BTCUSDT"
# read the value at: .values.downDepthFullRelated
How much is resting on the book within fixed percentage distances of the price.
Defined in the glossary: Order book depth.
← All Depth bands and every other metric · Coverage by venue
What is Total bid depth?
Total bid depth is a market-data metric BlackForge measures for every listed pair on nine spot exchanges, once per closed five-minute window. All resting buy liquidity in the order book we maintain for that venue. It reports what the order book or trade tape showed, not what price will do next.
How is Total bid depth measured?
BlackForge computes Total bid depth from each venue’s own order book and trades for every listed pair, once per closed five-minute window, and records it as quote. Because it is quote-relative, it is expressed in the pair’s quote asset. The value is stored exactly as observed.
Which plan includes Total bid depth?
Total bid depth is available from the Max plan upward, and on pay-per-call over x402. See pricing for the full plan ladder.
Does Total bid depth predict where price will go?
No. Total bid depth is a measurement of what the order book or trade tape showed in the window. It carries no view on future price, and BlackForge scores nothing — every metric is a measurement, not a call.