- API
- Implied volatility
- IV opportunities
Implied volatility API, GET /iv-opportunities/{ticker}
Is NVDA's IV stretched far enough from its mean to expect reversion?
IV mean-reversion read: z-score, reversion target and the expected IV change. Compares current IV with its mean and standard deviation, returns the z-score, a reversion target and the expected IV move, and labels whether an extreme is present.
The answer, in one call
Units first,
then the request.
IVs are annualised percentage points; z_score is in standard deviations; expected_pct_change is percent.
Mean and standard deviation are taken over the IV series behind /iv-rank.
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
"https://apexvol.com/api/mcp/data/iv-opportunities/NVDA"import requests
headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
r = requests.get("https://apexvol.com/api/mcp/data/iv-opportunities/NVDA", headers=headers)
r.raise_for_status()
data = r.json()["data"]
print(data["current_iv"])Is NVDA's implied vol stretched relative to its mean?
The assistant calls find_iv_opportunities and answers from the JSON below.{
"success": true,
"data": {
"current_iv": 34.43,
"expected_iv_move": 0,
"expected_pct_change": 0.0,
"iv_percentile": 12.0,
"iv_rank": 14.79,
"iv_units": "percentage_points",
"mean_iv": 38.53,
"opportunity": "NO_EXTREME",
"reversion_target": 34.43,
"std_iv": 3.31,
"term_structure": [
{
"expiration": "2026-09-09",
"iv": 25.87,
"z_score": -3.8248
},
{
"expiration": "2026-09-11",
"iv": 30.44,
"z_score": -2.4441
},
{
"expiration": "2026-09-14",
"iv": 28.78,
"z_score": -2.9456
}
],
"ticker": "NVDA",
"timestamp": "2026-09-08T08:06:45.029743",
"z_score": -1.2387
}
}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. |
Field by field
What each
number means.
current_iv, mean_iv, std_iv- Today's IV and its distribution.
z_score- How far IV is from its mean, in standard deviations.
reversion_target, expected_iv_move- Where IV would go if it reverted.
opportunity- SELL_VOL, BUY_VOL or NO_EXTREME.
term_structure[].z_score- The same read per expiration.
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;424data 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 find_iv_opportunities by name. One URL, a sign-in, no token to paste.
Is NVDA's implied vol stretched relative to its mean?
YouWhich of my watchlist has an IV z-score above 2?
YouShould I expect AAPL IV to revert from here?
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.