- API
- Gamma exposure
- GEX batch
Gamma exposure API, GET /batch/gex
Where are the gamma flip, call wall and put wall for several indexes at once?
Dealer gamma exposure levels for up to 25 symbols in a single request. Returns the gamma exposure payload of the single endpoint for each symbol in tickers, keyed by symbol under results: total GEX, the flip level, the call and put walls, the implications block and the strike profile windowed to ten strikes each side of spot unless strikes_around says otherwise. A symbol the feed cannot answer lands in errors and never fails the others. One rate-limit unit per call; the monthly allowance is spent per symbol. The morning regime read across SPY, QQQ and IWM is one request instead of three.
PremiumPlan and above, from $55/mo
1MCP tool that calls it
2026-09-08Sample captured from the live endpoint
The answer, in one call
Units first,
then the request.
GEX in dollars of gamma per 1 percent move; strikes and levels in the underlying's price.
Per symbol, identical to /gex/{ticker}: the vendor's per-strike gamma times open interest, calls positive and puts negative, aggregated across expirations unless expiration is given.
curlBearer token from Account, then API Access
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
"https://apexvol.com/api/mcp/data/batch/gex?tickers=SPY,QQQ,IWM"Pythonrequests, nothing else
import requests
headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
params = {"tickers": "SPY,QQQ,IWM"}
r = requests.get("https://apexvol.com/api/mcp/data/batch/gex", headers=headers, params=params)
r.raise_for_status()
data = r.json()["data"]
print(data["tickers"])In Claude, Cursor or ChatGPTthrough the MCP server, no code
You
Give me the gamma flip and walls for SPY, QQQ and IWM in one go.
The assistant calls get_gex and answers from the JSON below.GET /api/mcp/data/batch/gex?tickers=SPY,QQQ,IWM200, application/json, captured 2026-09-08
{
"success": true,
"data": {
"errors": {},
"failed": 0,
"note": "One rate-limit unit for the whole call; the monthly allowance is spent per symbol, exactly as if each were called alone.",
"requested": 3,
"results": {
"IWM": {
"by_expiration": [
{
"call_gex": 194570432.9169,
"expiration": "2026-09-08",
"flip_level": null,
"max_gamma_strike": 297,
"min_gamma_strike": 294,
"put_gex": -314182169.4409,
"stock_price": 294.93,
"total_gex": -119611736.5241
},
{
"call_gex": 79968880.5358,
"expiration": "2026-09-09",
"flip_level": null,
"max_gamma_strike": 299,
"min_gamma_strike": 290,
"put_gex": -93802211.7899,
"stock_price": 294.93,
"total_gex": -13833331.2541
},
{
"call_gex": 51676336.3829,
"expiration": "2026-09-10",
"flip_level": 301.4673,
"max_gamma_strike": 302.0,
"min_gamma_strike": 294.0,
"put_gex": -40047226.9667,
"stock_price": 294.93,
"total_gex": 11629109.4162
}
],
"call_gex": 1991848779.967,
"expirations_horizon_days": 90,
"expirations_included": 15,
"expirations_selected": [
"2026-09-08",
"2026-09-09",
"2026-09-10"
],
"expirations_through": "2026-11-20",
"expirations_total": 32,
"flip_degenerate": false,
"flip_level": null,
"gamma_flip": null,
"gex_by_strike": [
{
"gex": -166405035.4131,
"oi": 33821,
"strike": 294
},
{
"gex": -154744835.7884,
"oi": 146505,
"strike": 295
},
{
"gex": 44989557.5864,
"oi": 30511,
"strike": 296
}
],
"gex_profile": [
{
"call_gex": 75108974.55202408,
"net_gex": -166405035.41307533,
"put_gex": -241514009.9650994,
"strike": 294
},
{
"call_gex": 287165563.55992734,
"net_gex": -154744835.78841805,
"put_gex": -441910399.3483454,
"strike": 295
},
{
"call_gex": 114600260.44456725,
"net_gex": 44989557.58635123,
"put_gex": -69610702.85821602,
"strike": 296
}
],
"gex_ratio": 0.4101,
"implications": {
"directional_bias": "Put-heavy (call/put GEX 0.41)",
"net_to_gross": -0.4183,
"pin_at_spot": false,
"positioning": "largest strike $290.00 (-1.7%); call wall $295.00 (+0.0%); put wall $290.00 (-1.7%)",
"regime_code": "negative",
"support_resistance": "--",
"volatility_regime": "Negative GEX (dealers amplify moves)"
},
"key_levels": {
"call_wall": 295.0,
"call_wall_unconstrained": false,
"call_wall_value": 287165563.5599,
"flip_degenerate": false,
"flip_level": null,
"key_strike": 290.0,
"key_strike_net": 636588202.6787,
"max_pain": null,
"put_wall": 290.0,
"put_wall_unconstrained": false,
"put_wall_value": 756139680.1716,
"spot": 294.93
},
"max_gex_strike": 290,
"put_gex": -4857032318.9163,
"stock_price": 294.93,
"ticker": "IWM",
"total_gex": -2865183538.9493,
"total_gex_billions": -2.8652,
"window": {
"detail": "full",
"lists": {},
"strikes_around": 0
}
},
"QQQ": {
"by_expiration": [
{
"call_gex": 2142262257.0523,
"expiration": "2026-09-08",
"flip_level": 724.0413,
"max_gamma_strike": 722,
"min_gamma_strike": 714,
"put_gex": -1794824093.0343,
"stock_price": 719.11,
"total_gex": 347438164.0181
},
{
"call_gex": 689389017.1428,
"expiration": "2026-09-09",
"flip_level": 725.2466,
"max_gamma_strike": 722,
"min_gamma_strike": 714,
"put_gex": -519642458.0994,
"stock_price": 719.11,
"total_gex": 169746559.0433
},
{
"call_gex": 336787261.3424,
"expiration": "2026-09-10",
"flip_level": 721.093,
"max_gamma_strike": 725,
"min_gamma_strike": 711,
"put_gex": -202534668.4275,
"stock_price": 719.11,
"total_gex": 134252592.9149
}
],
"call_gex": 9648060927.0027,
"expirations_horizon_days": 90,
"expirations_included": 16,
"expirations_selected": [
"2026-09-08",
"2026-09-09",
"2026-09-10"
],
"expirations_through": "2026-11-20",
"expirations_total": 33,
"flip_degenerate": false,
"flip_level": 759.7918,
"gamma_flip": 759.7918,
"gex_by_strike": [
{
"gex": -0.0,
"oi": 1218,
"strike": 290
},
{
"gex": -0.0,
"oi": 1247,
"strike": 295
},
{
"gex": -0.0059,
"oi": 5458,
"strike": 300
}
],
"gex_profile": [
{
"call_gex": 2.6388805175953828e-09,
"net_gex": -1.9560701836675777e-07,
"put_gex": -1.9824589888435315e-07,
"strike": 290
},
{
"call_gex": 6.774953948619314e-09,
"net_gex": -2.1478435085757986e-07,
"put_gex": -2.2155930480619918e-07,
"strike": 295
},
{
"call_gex": 5.8615478295618864e-05,
"net_gex": -0.005904420870384122,
"put_gex": -0.005963036348679741,
"strike": 300
}
],
"gex_ratio": 1.0418,
"implications": {
"directional_bias": "Balanced (call/put GEX 1.04)",
"net_to_gross": 0.0205,
"pin_at_spot": false,
"positioning": "largest strike $700.00 (-2.7%); call wall $720.00 (+0.1%); put wall $700.00 (-2.7%); flip $759.79 (+5.7%)",
"regime_code": "balanced",
"support_resistance": "Flip at $759.79 (5.7% above spot): hedging amplifies moves below it, dampens above",
"volatility_regime": "Balanced GEX (net 2.0% of gross, no dominant side)"
},
"key_levels": {
"call_wall": 720.0,
"call_wall_unconstrained": false,
"call_wall_value": 986731585.5279,
"flip_degenerate": false,
"flip_level": 759.7918,
"key_strike": 700.0,
"key_strike_net": 710253911.9649,
"max_pain": null,
"put_wall": 700.0,
"put_wall_unconstrained": false,
"put_wall_value": 935281868.3011,
"spot": 719.11
},
"max_gex_strike": 700,
"put_gex": -9261153393.2054,
"stock_price": 719.11,
"ticker": "QQQ",
"total_gex": 386907533.7973,
"total_gex_billions": 0.3869,
"window": {
"detail": "full",
"lists": {},
"strikes_around": 0
}
},
"SPY": {
"by_expiration": [
{
"call_gex": 2476891013.9783,
"expiration": "2026-09-08",
"flip_level": 759.0,
"max_gamma_strike": 773,
"min_gamma_strike": 768,
"put_gex": -3266496539.5316,
"stock_price": 768.39,
"total_gex": -789605525.5533
},
{
"call_gex": 1038157463.9151,
"expiration": "2026-09-09",
"flip_level": null,
"max_gamma_strike": 773,
"min_gamma_strike": 769,
"put_gex": -1178637074.864,
"stock_price": 768.39,
"total_gex": -140479610.9489
},
{
"call_gex": 689747750.2082,
"expiration": "2026-09-10",
"flip_level": 771.7899,
"max_gamma_strike": 770,
"min_gamma_strike": 768,
"put_gex": -497495552.7004,
"stock_price": 768.39,
"total_gex": 192252197.5078
}
],
"call_gex": 14807169751.726,
"expirations_horizon_days": 90,
"expirations_included": 16,
"expirations_selected": [
"2026-09-08",
"2026-09-09",
"2026-09-10"
],
"expirations_through": "2026-11-20",
"expirations_total": 34,
"flip_degenerate": false,
"flip_level": null,
"gamma_flip": null,
"gex_by_strike": [
{
"gex": -65.7071,
"oi": 36665,
"strike": 300
},
{
"gex": -16.397,
"oi": 10411,
"strike": 305
},
{
"gex": -0.9852,
"oi": 19659,
"strike": 310
}
],
"gex_profile": [
{
"call_gex": 1.5405511102348097,
"net_gex": -65.70709879607838,
"put_gex": -67.2476499063132,
"strike": 300
},
{
"call_gex": 2.9930291273567513e-07,
"net_gex": -16.397040589271285,
"put_gex": -16.397040888574196,
"strike": 305
},
{
"call_gex": 1.888430482493683e-07,
"net_gex": -0.9852460785906124,
"put_gex": -0.9852462674336606,
"strike": 310
}
],
"gex_ratio": 0.742,
"implications": {
"directional_bias": "Balanced (call/put GEX 0.74)",
"net_to_gross": -0.1481,
"pin_at_spot": false,
"positioning": "largest strike $760.00 (-1.1%); call wall $770.00 (+0.2%); put wall $760.00 (-1.1%)",
"regime_code": "negative",
"support_resistance": "--",
"volatility_regime": "Negative GEX (dealers amplify moves)"
},
"key_levels": {
"call_wall": 770.0,
"call_wall_unconstrained": false,
"call_wall_value": 1664476542.9575,
"flip_degenerate": false,
"flip_level": null,
"key_strike": 760.0,
"key_strike_net": 2139119152.7301,
"max_pain": null,
"put_wall": 760.0,
"put_wall_unconstrained": false,
"put_wall_value": 2603902619.2914,
"spot": 768.39
},
"max_gex_strike": 760,
"put_gex": -19956183040.1022,
"stock_price": 768.39,
"ticker": "SPY",
"total_gex": -5149013288.3761,
"total_gex_billions": -5.149,
"window": {
"detail": "full",
"lists": {},
"strikes_around": 0
}
}
},
"succeeded": 3,
"tickers": [
"SPY",
"QQQ",
"IWM"
]
}
}Every response is wrapped as {"success": true, "data": {...}}. Lists in the sample are cut to a few rows so it fits on a page; the shape is exactly what your code receives.
Parameters
Bounded,
and the bounds are stated.
Out-of-range numbers are clamped to the documented range, never silently changed to something else. A missing required field returns 400 with the reason.
| Name | In | Default | Range | Meaning |
|---|---|---|---|---|
tickers required | query | 1 to 25 symbols, comma-separated | The underlyings, upper case, duplicates dropped. A symbol with no listed options answers 404 for the whole call and names the symbol. | |
expiration | query | YYYY-MM-DD | One expiration instead of the aggregate, applied to every symbol. | |
aggregate | query | true | true or false | Aggregate across expirations. |
strikes_around | query | 10 | 0 to 500 | Strikes kept each side of spot in the profile lists under compact detail. 0 keeps every strike. |
detail | query | compact for MCP clients, full for REST | compact or full | full returns every strike for every symbol. |
Field by field
What each
number means.
tickers, requested, succeeded, failed- The symbols asked for and how many answered.
results.{SYMBOL}.total_gex, flip_level- Net dealer gamma and the price where it changes sign.
results.{SYMBOL}.key_levels- call_wall, put_wall, key_strike and max_pain.
results.{SYMBOL}.gex_by_strike[]- The per-strike profile inside the window.
results.{SYMBOL}.window- What the window kept and whether it truncated.
errors.{SYMBOL}- Why a symbol is missing from results.
Access, limits, errors
Before the
first call.
- Plan
- Premium Premium and above. Tokens are issued to paid and trial accounts from $55 a month; each endpoint follows the tier of its web feature. An endpoint above your plan answers 402 and names the plan it needs.
- Auth
- Bearer token, prefix
avmcp_, created under Account, then API Access. Shown once, hashed at rest, rotates in one click. Always callhttps://apexvol.com, never www. - Limits
- 60 requests a minute and 1,000 an hour per token, plus a monthly allowance by plan. Every response carries the remaining counts in
X-RateLimit-*headers; a 429 carriesRetry-Afterin seconds. - Errors
401no or revoked token;429Retry-After seconds;403Premium plan required;424no symbol in the batch returned data;404a symbol with no listed options; the whole call fails and the body names it. The full list with payload shapes is on the errors page.- Since
- API 1.19. Units, bases and timestamps follow the conventions shared by every endpoint; changes are logged in the API changelog.
- Machine-readable
- This page as Markdown, the family as one file, the whole API as llms-full.txt or OpenAPI 3.1.
The same data, in plain English
Ask for it
in an MCP client.
Connect the ApexVol MCP server and the assistant calls get_gex by name. One URL, a sign-in, no token to paste.
Prompts that hit this endpointcopy one into Claude, Cursor or ChatGPT
You
Give me the gamma flip and walls for SPY, QQQ and IWM in one go.
YouWhich of the big indexes is in negative gamma this morning?
YouCompare dealer positioning across SPY, QQQ, IWM and DIA.
More in the prompt library. Set the server up in Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, Windsurf or Gemini CLI.
Included with
every paid plan.
From $55 a month, tier-matched: your token queries the data your plan includes and Pro unlocks the full surface.
Real market data, not a sandbox. See it live on AAPL.