Endpoint

GET /v1/flow/levels/{symbol}

Auth required (X-Api-Key) Rate Limited: Yes Growth plan+

Parameters

Name	In	Required	Default	Description
`symbol`	path	yes	-	Underlying symbol
`expiry`	query	no	all expiries	Filter chain to a single expiry (`yyyy-MM-dd`). Omit to aggregate across all expiries

curl -H "X-Api-Key: YOUR_API_KEY" \
  "https://lab.flashalpha.com/v1/flow/levels/SPY"

import requests

resp = requests.get(
    "https://lab.flashalpha.com/v1/flow/levels/SPY",
    headers={"X-Api-Key": "YOUR_API_KEY"}
)
data = resp.json()
print(f"Live gamma flip: {data['live_gamma_flip']}")
print(f"Live call wall: {data['live_call_wall']}")
print(f"Live put wall:  {data['live_put_wall']}")

const resp = await fetch(
  "https://lab.flashalpha.com/v1/flow/levels/SPY",
  { headers: { "X-Api-Key": "YOUR_API_KEY" } }
);
const data = await resp.json();
console.log(`Live gamma flip: ${data.live_gamma_flip}`);
console.log(`Live call wall: ${data.live_call_wall}`);
console.log(`Live put wall:  ${data.live_put_wall}`);

API Key

Response

{
  "symbol": "SPY",
  "as_of": "2026-05-12T18:42:10Z",
  "underlying_price": 597.505,
  "expiry": "2026-05-15",
  "live_gamma_flip": 595.50,
  "live_call_wall": 600.0,
  "live_put_wall": 595.0,
  "live_max_pain": 597.0
}

Key Response Fields

Field	Type	Description
`symbol`	string	Underlying symbol
`as_of`	string	ISO 8601 timestamp
`underlying_price`	number	Current price of underlying
`live_gamma_flip`	number	Strike where live net GEX crosses zero (the gamma flip point)
`live_call_wall`	number	Strike with highest live call GEX - the call wall (resistance)
`live_put_wall`	number	Strike with highest live put GEX - the put wall (support)
`live_max_pain`	number	Max pain strike using effective OI

Any field may be null if the underlying profile cannot resolve it (e.g., no gamma flip exists in the strike range).

About Flow Levels

Flow Levels returns the live versions of the four key technical levels traders anchor to: gamma flip, call wall, put wall, and max pain. The settled versions in /v1/exposure/levels are computed on the morning OPRA-broadcast OI and stay fixed all session. This endpoint runs the same level-detection logic on the OI simulator's effective OI, so when a wall starts losing OI or a new strike accumulates positioning, the levels move with it. Same definitions, intraday-adjusted inputs.

Common Use Cases

Live wall tracking - watch call/put walls migrate during the session instead of staring at stale morning levels
Gamma flip alerts - trigger when the live gamma flip crosses spot
Pin-magnet planning - pair live max pain with proximity to set end-of-day targets
Setup confirmation - validate a trade idea against live walls before sizing up
Settled vs live diff - fetch both endpoints and surface the deltas as a "levels are shifting" signal

Flow Levels API