# BackQuant API v2 API

**Canonical:** https://apis.io/apis/backquant-com/backquant-api-v2-api/  
**Provider:** BackQuant — https://apis.io/providers/backquant-com/  
**Documentation:** https://docs.backquant.com/llms.txt

BackQuant API v2 API is one of 2 APIs that [BackQuant](https://apis.io/providers/backquant-com/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

Options + gamma-exposure focused public API. Built on the same data the

## Operations (60 of 70)

| Method | Path | Summary |
|---|---|---|
| GET | `/health` | v2 health check (no auth) |
| GET | `/meta` | API-level metadata |
| GET | `/endpoints` | Live catalog of every v2 route |
| GET | `/changelog` | API version history with breaking-change flags |
| GET | `/symbols` | Supported symbols + per-symbol availability |
| GET | `/expiries` | Active expiry tokens with DTE |
| GET | `/status` | v2 service status - per symbol, per category freshness |
| GET | `/gex/levels` | Composable GEX key levels |
| GET | `/gex/strike-profile` | GEX by strike |
| GET | `/gex/expiry-profile` | GEX by expiry |
| GET | `/gex/strike-expiry-heatmap` | 2D strike × expiry GEX matrix |
| GET | `/gex/time-heatmap` | Strike × time greek heatmap |
| GET | `/gex/history` | Total GEX history (cursor-paginated) |
| GET | `/gex/stress-history` | Long-window GEX levels from Postgres (per symbol) |
| GET | `/gex/max-pain` | Max-pain strike (per-expiry) |
| GET | `/gex/ladder` | Strike ladder: dealer exposure by strike x expiry |
| GET | `/gex/dealer-flow` | Dealer hedge flow time series (gamma + vanna + charm) |
| GET | `/gex/gamma-flow` | Total gamma flow time series |
| GET | `/gex/delta-flow` | Customer delta flow (HIRO-style) from options tape |
| GET | `/gex/dealer-flow/by-level` | Expected dealer hedge $ if spot walks to each strike |
| GET | `/options/chain` | Filtered options chain |
| GET | `/options/expiry-summary` | Per-expiry IV / skew / PCR / OI / GEX (with OPEX enrichment) |
| GET | `/options/iv/surface` | IV surface (strike × expiry) |
| GET | `/options/iv/term-structure` | ATM IV by tenor |
| GET | `/options/iv/skew` | 25Δ / 10Δ skew + 25Δ butterfly per expiry |
| GET | `/options/iv/curves` | Full IV smile per expiry |
| GET | `/options/iv/smile` | Single-expiry IV smile |
| GET | `/options/iv/constant-maturity` | Constant-maturity vol: ATM, risk reversals, butterflies |
| GET | `/options/iv/iv-rv` | Implied vs realized vol history |
| GET | `/options/vrp` | Volatility Risk Premium |
| GET | `/options/expected-move` | Implied 1σ move |
| GET | `/options/probability/density` | Risk-neutral PDF/CDF (per expiry) |
| GET | `/options/probability/surface` | 3D probability surface (PDF over strike × expiry) |
| GET | `/options/greeks/{greek}` | Greek exposure profile by strike |
| GET | `/options/greeks/surfaces/{greek}` | Strike × time greek surface |
| GET | `/options/greeks/3d/surface` | Strike × expiry surface for any greek |
| GET | `/options/oi/by-expiry` | Call/put OI per expiry |
| GET | `/options/oi/history` | Total OI history (cursor-paginated) |
| GET | `/options/pcr` | Put/call ratio |
| GET | `/options/premium-tide` | Net premium & volume tilt |
| GET | `/options/range` | Calibrated options range |
| GET | `/options/futures/term-structure` | Dated-futures annualized basis curve |
| GET | `/options/opex` | OPEX calendar with per-expiry context |
| GET | `/options/greeks/trace/{greek}` | Forward (time × price) greek projection - gamma / charm / vanna |
| GET | `/options/greeks/trace/{greek}/summary` | TRACE field summary - pin zones, accel pockets, lean |
| GET | `/options/venue-book` | Consolidated cross-venue book and quote dispersion |
| GET | `/liquidation/heatmap` | Liquidation intensity heatmap (price × time) |
| GET | `/liquidation/distribution` | Liquidation histogram with leverage tiers |
| GET | `/multi/gex/levels` | GEX levels across multiple symbols (bundled) |
| GET | `/market/candles` | OHLCV candles |
| GET | `/market/open-interest` | Open interest series |
| GET | `/market/funding` | Funding rate series |
| GET | `/market/cvd` | Cumulative volume delta |
| GET | `/market/liquidations` | Liquidation series |
| GET | `/market/bundle` | Price, open interest and funding in one call |
| GET | `/etf/flows` | Spot ETF daily flows |
| GET | `/etf/premium` | Spot ETF premium or discount to NAV |
| GET | `/etf/aum` | Spot ETF assets under management |
| GET | `/cot/markets` | COT instruments |
| GET | `/cot/summary` | COT positioning across markets |

…and 10 more operations. They are listed in full on the page.

## Machine-readable artifacts (7)

- **OpenAPI** — https://artifacts.apis.io/backquant-com/openapi/_original/backquant-com-api-openapi.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-probability-density-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-gex-strike-profile-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-iv-term-structure-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-multi-gex-levels-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-expiry-summary-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/backquant-com/json-schema/backquant-com-expected-move-response-schema.json

## Other BackQuant APIs (1)

- [BackQuant API v2](https://apis.io/apis/backquant-com/backquant-api-v2/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/backquant-com/backquant-api-v2-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/backquant-com/.