Realized vol regimes API endpoint, Implied volatility

The answer, in one call

Units first,
then the request.

All volatilities are annualised percentage points.

cls_hv is close-to-close; or_hv is the data feed's intraday-range estimator. view=ex_earnings recomputes the 30-day tenor from daily closes with earnings reaction sessions dropped.

curlBearer token from Account, then API Access

curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
     "https://apexvol.com/api/mcp/data/hv-regimes/NVDA"

Pythonrequests, nothing else

import requests

headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
r = requests.get("https://apexvol.com/api/mcp/data/hv-regimes/NVDA", headers=headers)
r.raise_for_status()
data = r.json()["data"]
print(data["forecast"])

In Claude, Cursor or ChatGPTthrough the MCP server, no code

You

What is NVDA's 20-day realized vol versus its 1-year?

The assistant calls get_ticker_analytics and answers from the JSON below.

ticker *any covered symbol

viewdashboard, signals, decomposition, ex_earnings

days20 to 1000

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/hv-regimes/NVDA200, application/json, captured 2026-09-08

{
  "success": true,
  "data": {
    "days": 252,
    "forecast": {
      "orFcst20d": null,
      "orFcstInf": null
    },
    "term_structure": [
      {
        "cls_hv": 24.54,
        "or_hv": 32.68,
        "window": "5d"
      },
      {
        "cls_hv": 56.32,
        "or_hv": 46.76,
        "window": "10d"
      },
      {
        "cls_hv": 44.38,
        "or_hv": 37.68,
        "window": "20d"
      }
    ],
    "ticker": "NVDA",
    "timeseries": [
      {
        "clsHv10d": 25.76,
        "clsHv120d": 46.85,
        "clsHv20d": 22.91,
        "clsHv252d": 50.25,
        "clsHv30d": 24.9,
        "clsHv5d": 23.98,
        "clsHv60d": 26.55,
        "clsHv90d": 29.17,
        "date": "2025-09-05"
      },
      {
        "clsHv10d": 24.09,
        "clsHv120d": 46.76,
        "clsHv20d": 22.7,
        "clsHv252d": 50.21,
        "clsHv30d": 25.03,
        "clsHv5d": 22.25,
        "clsHv60d": 26.48,
        "clsHv90d": 29.17,
        "date": "2025-09-08"
      },
      {
        "clsHv10d": 24.88,
        "clsHv120d": 46.47,
        "clsHv20d": 23.59,
        "clsHv252d": 50.22,
        "clsHv30d": 24.79,
        "clsHv5d": 22.9,
        "clsHv60d": 26.47,
        "clsHv90d": 29.19,
        "date": "2025-09-09"
      }
    ]
  }
}

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
`ticker` required	path		any covered symbol	The underlying, upper case. Use /search to check coverage.
`view`	query	dashboard	dashboard, signals, decomposition, ex_earnings	Which block to return.
`days`	query	252	20 to 1000	History length.

Field by field

What each
number means.

timeseries[].clsHv5d to clsHv252d: Realized vol per window per day.
term_structure[].window, cls_hv, or_hv: The HV term structure.
forecast: Vendor forecast of 20-day and long-run vol when available.

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 data feed unavailable, retry. The full list with payload shapes is on the errors page.
Since: API 1.0. 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_ticker_analytics 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 NVDA's 20-day realized vol versus its 1-year?

You

Show the realized-vol term structure for AAPL.

You

Give me TSLA's realized vol excluding earnings days.

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. Volatility Trading: How to Trade Vol as an AssetVolatility trading guide: learn how to trade volatility as an asset class using options, VIX products, and volatility strategies. get_ticker_analytics in an MCP clientPrompts for Claude, Cursor and ChatGPT that call this tool.

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

What realized-vol regime is NVDA in, and are the short windows above or below the long ones?

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.