IV rank batch API endpoint, Implied volatility

The answer, in one call

Units first,
then the request.

IV values are annualised percentage points, declared by iv_units on every symbol's payload. IV rank and percentile are 0 to 100.

Per symbol, identical to /iv-rank/{ticker}: the 30-day constant-maturity implied vol ranked against its own lookback_days history; the percentile is the vendor's one-year figure.

curlBearer token from Account, then API Access

curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
     "https://apexvol.com/api/mcp/data/batch/iv-rank?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/iv-rank", 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

What is the IV rank of SPY, QQQ and IWM right now?

The assistant calls get_iv_rank and answers from the JSON below.

tickers *1 to 25 symbols, comma-separated

lookback_days20 to 1260

Tokens come with every paid or trial plan. Sign in and create one under Account, then API Access, or start a trial. Your ticker, your budget.

GET /api/mcp/data/batch/iv-rank?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": {
        "current_iv": 17.09,
        "data_source": "iv_rank_1y",
        "historical_data_points": 252,
        "is_full_year": true,
        "iv30d": 16.07,
        "iv_basis": "vendor_ivrank_series",
        "iv_max_52w": 32.56,
        "iv_mean": 21.53,
        "iv_median": 21.33,
        "iv_min_52w": 16.56,
        "iv_percentile": 4.0,
        "iv_percentile_1m": 33.33,
        "iv_percentile_1y": 4,
        "iv_percentile_source": "cores_ivPctile1y",
        "iv_rank": 3.33,
        "iv_rank_1m": 28.23,
        "iv_rank_1y": 3.33,
        "iv_state": "VERY_LOW",
        "iv_std": 3.04,
        "iv_stdv_from_mean": -1.34,
        "iv_units": "percentage_points",
        "lookback_days": 252,
        "ticker": "IWM",
        "timestamp": "2026-09-08T14:36:41.134388"
      },
      "QQQ": {
        "current_iv": 17.79,
        "data_source": "iv_rank_1y",
        "historical_data_points": 252,
        "is_full_year": true,
        "iv30d": 16.76,
        "iv_basis": "vendor_ivrank_series",
        "iv_max_52w": 28.34,
        "iv_mean": 20.67,
        "iv_median": 20.29,
        "iv_min_52w": 15.36,
        "iv_percentile": 17.0,
        "iv_percentile_1m": 23.81,
        "iv_percentile_1y": 17,
        "iv_percentile_source": "cores_ivPctile1y",
        "iv_rank": 18.73,
        "iv_rank_1m": 19.52,
        "iv_rank_1y": 18.73,
        "iv_state": "VERY_LOW",
        "iv_std": 2.9,
        "iv_stdv_from_mean": -0.84,
        "iv_units": "percentage_points",
        "lookback_days": 252,
        "ticker": "QQQ",
        "timestamp": "2026-09-08T14:36:40.024882"
      },
      "SPY": {
        "current_iv": 12.2,
        "data_source": "iv_rank_1y",
        "historical_data_points": 252,
        "is_full_year": true,
        "iv30d": 11.54,
        "iv_basis": "vendor_ivrank_series",
        "iv_max_52w": 24.98,
        "iv_mean": 14.7,
        "iv_median": 14.13,
        "iv_min_52w": 11.25,
        "iv_percentile": 6.0,
        "iv_percentile_1m": 14.29,
        "iv_percentile_1y": 6,
        "iv_percentile_source": "cores_ivPctile1y",
        "iv_rank": 6.86,
        "iv_rank_1m": 18.46,
        "iv_rank_1y": 6.86,
        "iv_state": "VERY_LOW",
        "iv_std": 2.42,
        "iv_stdv_from_mean": -0.78,
        "iv_units": "percentage_points",
        "lookback_days": 252,
        "ticker": "SPY",
        "timestamp": "2026-09-08T14:36:39.102977"
      }
    },
    "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.
`lookback_days`	query	252	20 to 1260	Trading days of history the rank is measured against, applied to every symbol.

Field by field

What each
number means.

tickers, requested, succeeded, failed: The symbols asked for and how many answered.
results.{SYMBOL}: The single-endpoint payload for that symbol: iv_rank, iv_percentile, current_iv, iv_max_52w, iv_min_52w, iv_units.
errors.{SYMBOL}: Why a symbol is missing from results, in plain words.
note: Reminds a client how the call is metered.

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 call https://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 carries Retry-After in seconds.
Errors: 401 no or revoked token; 429 Retry-After seconds; 403 Premium plan required; 424 no symbol in the batch returned data; 404 a 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_iv_rank by name. One URL, a sign-in, no token to paste.

Prompts that hit this endpointcopy one into Claude, Cursor or ChatGPT

You

What is the IV rank of SPY, QQQ and IWM right now?

You

Rank my watchlist by IV rank, highest first.

You

Which of AAPL, MSFT, NVDA and AMD has the cheapest implied vol for the year?

More in the prompt library. Set the server up in Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, Windsurf or Gemini CLI.

Implied volatility APIIV rank, IV percentile, the 52-week range, the vol cone, the term structure and the premium over realized. Each one is a GET that returns the number the terminal draws. IV Rank vs IV Percentile: Key DifferencesIV rank and IV percentile explained: definitions, formulas, the key difference, and which to use for premium-selling decisions, with examples. get_iv_rank in an MCP clientPrompts for Claude, Cursor and ChatGPT that call this tool.

Included with
every paid plan.

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Real market data, not a sandbox. See it live on AAPL.

What is the IV rank of every name on my watchlist, in one call?

Units first,then the request.

Bounded,and the bounds are stated.

What eachnumber means.

Before thefirst call.

Ask for itin an MCP client.

The rest of the family,and the explainer behind it.

Included withevery paid plan.