---
title: "Composable GEX key levels"
method: GET
path: "/gex/levels"
tags: ["GEX"]
---

# Composable GEX key levels

`GET /gex/levels`

## Request

- Base URL: `https://docs.backquant.com/v2`
- URL: `https://docs.backquant.com/v2/gex/levels`
- Auth: API key in header `X-API-Key`

All-expiry HVL/walls plus 0DTE-specific levels in a single call. Use `?include=` to opt in to optional sections — `spot,candles,zones,max_pain,expected_move,ranked`. Filter by exchange with `?exchanges=deribit,bybit,okx,binance`.

## Query parameters

- `symbol` 'BTCUSDT' | 'ETHUSDT' | 'SOLUSDT' | 'HYPEUSDT': Trading symbol: BTCUSDT, ETHUSDT, SOLUSDT, or HYPEUSDT.
- `exchanges` string, nullable: Comma-separated venue filter
- `include` string, nullable: Comma-separated optional sections: candles,expected_move,max_pain,ranked,spot,zones

## Headers

- `X-API-Key` string, nullable

## Response `200`

Successful Response

- GexLevelsResponse
  - `success` true
  - `data` GexLevelsData, required
    - `all_expiry` GexAllExpiryLevels, required
      - `hvl` number, nullable: Hedging volume level (gamma-flip).
      - `call_resistance` number, nullable
      - `call_wall_2` number, nullable
      - `call_wall_3` number, nullable
      - `put_support` number, nullable
      - `put_wall_2` number, nullable
      - `put_wall_3` number, nullable
    - `odte` GexOdteLevels, required
      - `hvl` number, nullable
      - `call_resistance` number, nullable
      - `put_support` number, nullable
    - `ranked` GexRanked
      - `all_expiry_top_10` GexRankedLevel[]
        - `rank` integer, required
        - `strike` number, required
        - `gex` number, required
        - `abs_gex` number, required
      - `odte_top_10` GexRankedLevel[]
        - `rank` integer, required
        - `strike` number, required
        - `gex` number, required
        - `abs_gex` number, required
    - `max_pain` GexMaxPainBlock
      - `strike` number, nullable
      - `value` number, nullable
    - `expected_move` GexExpectedMove
      - `upper_1sd` number, nullable
      - `lower_1sd` number, nullable
      - `upper_2sd` number, nullable
      - `lower_2sd` number, nullable
    - `gamma_flip_zones` object[], nullable
    - `spot` GexSpotBlock
      - `spot_price` number, nullable
      - `perps_price` number, nullable
    - `candles` Candle[], nullable
      - `datetime` string, required
      - `open` number, required
      - `high` number, required
      - `low` number, required
      - `close` number, required
      - `volume` number, required
  - `meta` V2Meta, required: The meta block returned alongside every v2 response. Every field after `version`/`timestamp` is optional because endpoints attach different combinations — e.g. `/v2/status` skips `symbol`, the chain endpoint sets `extra.filter_hash`, etc. Listing them here means SDKs get a typed accessor for each instead of a generic `meta: dict`.
    - `version` '2.0', required: API version tag.
    - `timestamp` string, required: ISO 8601 wall-clock when the response was built.
    - `request_id` string, nullable: X-Request-ID for tracing across logs / Sentry.
    - `symbol` string, nullable: Symbol the response is about, if applicable.
    - `spot_price` number, nullable: Current spot price for the symbol.
    - `computed_at` string, nullable: ISO 8601 of when the underlying cache value was last written.
    - `freshness_seconds` number, nullable: `now - computed_at` in seconds; useful for staleness alarms.
    - `source` string[], nullable: Upstream venue list the data flowed through.
    - `exchanges_filtered` string[], nullable: Echo of the `?exchanges=` filter when one was applied.
    - `rate_limit` object, nullable: `{limit, remaining, reset}` echo of the rate-limit headers.
    - `extra` object, nullable: Open dict for endpoint-specific metadata (filter_hash, etc.).

## Other responses

- `401`: Invalid or missing API key
- `404`: Not Found
- `422`: Validation error on query parameters
- `429`: Rate limit exceeded

---

[API](https://skmtc.dev/backquant/apis/backquant-api-v2.md) · [All operations](https://skmtc.dev/backquant/apis/backquant-api-v2/llms.txt) · [OpenAPI document](https://skmtc.dev/backquant/apis/backquant-api-v2/revisions/3c1c96b3cc24?raw)