ByKaranteli VPIN Flow Toxicity

Endpoints (34 live)

• GET /api/x402/tokenized-stocks-history — Hourly readings per tokenized stock wrapper from 12 issuers (the issuer filter lists them): wrapper price (liquidity-weighted DEX median, or the exchange price under chain cex), the real share reference and its session, premium in percent, pool liquidity, 24h volume and admitted pools, recorded from 2026-09-23 and kept permanently. The free /api/public/tokenized-stocks returns only the latest board, with price_source per wrapper. (0.1 USDC on Solana)
• GET /api/x402/prepaid-key — Buy a prepaid API key loaded with $10 of credit for every paid route on this origin: send it as the x-api-key header instead of paying per call; each call deducts its listed price ($0.10 a call), 100 calls after one payment. Pass key=<existing bk_live key> to top up instead of minting a new one. The plain key is returned once; balance and call count are free at /api/x402/prepaid-key/balance. Solana USDC or Base USDC, no card, no account. (10 USDC on Base)
• GET /api/x402/solana-perps-history — Hourly history of every Solana perp venue on the board but Jupiter (jupiter-history): Pacifica, Phoenix, GM Trade, Velocity and Bullet, per market and metric: one-sided open interest in USD (both sides on pool venues), 24h volume, hourly funding in percent of position size (empty where the venue publishes only an accumulator), mark, and Phoenix's raw funding accumulator; recorded from 2026-09-25. The free API returns the live board and seven days of one market. (0.1 USDC on Solana)
• GET /api/x402/jupiter-history — Hourly Jupiter Perps history per market (SOL, ETH, BTC) and metric: exact long and short open interest read from the on-chain custody state (guaranteedUsd, globalShortSizes), long and short pool utilization, hourly borrow rates, custody AUM, price and 24h volume, plus JLP pool AUM, price and APR under market JLP; recorded on our side from 2026-09-02. The free /api/public/jupiter returns the live board and up to 30 days of hourly OI history. (0.1 USDC on Base)
• GET /api/x402/funding-history — Settled funding rate history per symbol and venue, the series behind carry and basis work. The current cross venue snapshot is free at /api/public/heatmap and /api/public/funding-arb. (0.1 USDC on Base)
• GET /api/x402/flow-vpin — Order flow toxicity (VPIN) HISTORY for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets, on top of the live snapshot. The snapshot alone is free at /api/public/flow. (0.1 USDC on Solana)
• GET /api/x402/liqmap-levels — Full multi-exchange liquidation map snapshot for a Binance USDT-M perp: modeled leverage clusters, real forceOrder levels, top magnets, funding, OI and orderbook context. (0.1 USDC on Base)
• GET /api/x402/oi-history — Five minute open interest history for the major perpetuals in base units and USD, normalised across symbols and retained on our side, so one query replaces per-symbol paginated pulls against exchange endpoints. (0.1 USDC on Base)
• GET /api/x402/spot-microstructure — Minute bars with the taker buy versus total quote volume split, pre-joined across venues and kept beyond exchange retention: the raw input behind order flow imbalance and VPIN work, in one query instead of paginating an exchange API per symbol per venue. (0.1 USDC on Base)
• GET /api/x402/options-oi-history — Daily listed options open interest per instrument: strike, expiry, option type, open interest, mark implied volatility, underlying price and traded notional. The aggregate snapshot is free at /api/public/options. (0.1 USDC on Base)
• GET /api/x402/options-flow — BTC or ETH options tape DEPTH from recorded Deribit flow: the daily premium-flow history we have recorded plus the full big-print list, beyond the 24h summary that is free at /api/public/options-flow. (0.1 USDC on Base)
• GET /api/x402/liquidations-raw — Individual liquidation events recorded from our own exchange sockets across Binance, Bybit and OKX: side, price, quantity, notional, venue and millisecond timestamp. The daily rollup is free at /api/v1/public/datasets/liquidations-daily. (0.1 USDC on Base)
• GET /api/x402/cot-history — Full CFTC Commitments of Traders weekly history for crypto futures: dealer, asset manager, leveraged fund, other reportable and non reportable long and short positions plus open interest per report. The latest report is free at /api/public/cot. (0.1 USDC on Base)
• GET /api/x402/whale-trades-raw — Every $1M+ aggressive market print recorded live from our own trade sockets, with side, price, quantity and notional, recorded since 2026-08-13, filterable by symbol, exchange and time. The free endpoint serves the live tape (newest 100 prints, no filters); this route is the recorded archive behind it. (0.1 USDC on Base)
• GET /api/x402/venue-share-history — Hourly recorded liquidations per counted venue (Binance, Bybit, OKX, Gate, HTX, dYdX, Aster, Lighter, Kraken Futures, GMX and Deribit): long and short USD, events, largest single print, symbols, the hour's total over the counted venues and the venue's share of it; a venue's hours start on its first counted day. Newest first, recorded since 2026-08-29. The free /api/public/venue-share serves 24h, 7d, 30d and 30 daily rows. (0.1 USDC on Base)
• GET /api/x402/hl-positions-history — Every open position of the 1000 largest Hyperliquid accounts by equity once an hour: address, coin, signed size, notional, entry and liquidation price, leverage and account equity, recorded from 2026-09-30, newest hour first; filter by coin, address and time. The free /api/public/hyperliquid-positions serves the live liquidation bands and hourly totals, never per position rows. (0.1 USDC on Base)
• GET /api/x402/market-profile-history — Daily Market Profile per perpetual from our own minute bars: 30-minute TPO periods over price buckets a fixed fraction of the day's open, the point of control, the 70% value area (VAH, VAL), the initial balance (first hour UTC), the volume point of control and the per-bucket profile. One symbol per call, newest first; BTC from 2024, other symbols from their recorder's start. The free /api/public/market-profile serves 30 days without the profile column. (0.1 USDC on Base)
• GET /api/x402/options-chain-history — Hourly listed options chain per instrument on Deribit, Bybit, Binance, OKX and Delta Exchange: open interest in coins, mark IV, underlying price and 24h volume per venue, plus Deribit mark, bid and ask in coins. Newest hour first; filter by currency, venue, expiry and time. The free /api/public/options/chain serves the newest hour with its 1h and 24h changes. (0.1 USDC on Base)
• GET /api/x402/tradfi-oi-history — Five minute open interest history for the top-40 Binance TradFi perpetuals (US, HK, KR and CN equities, commodities, indices) in base units and USD, recorded on our side from 2026-09-02; the free /api/public/tradfi board only carries the live value. (0.1 USDC on Base)
• GET /api/x402/hl-whale-events — Every recorded position change of the 300 largest Hyperliquid accounts by equity (opened, closed, increased, reduced, flipped) with size before and after, notional changed, entry and liquidation price and leverage, scanned every 5 minutes on our side from 2026-09-02; the free /api/public/hyperliquid-whales returns the live board and only the last 200 events. (0.1 USDC on Base)

+14 more endpoints.