1. API
  2. Options flow
  3. Flow

Options flow API, GET /flow/{ticker}

What are the largest NVDA option trades today, and are they bullish or bearish?

Options flow: the largest premium by contract, unusual volume against open interest and a sentiment summary. Returns the largest flows, the unusual activity (volume far above open interest), the full flow list, the most active strikes and expirations, and a summary with net premium and a sentiment label. Compact detail caps the row lists.

Run it on your ticker Download as Markdown Copy for your AI
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.

premium in dollars; volume and oi in contracts; volume_oi_ratio unitless.

Aggregated from today's cumulative volume by contract; is_market_hours and data_freshness say how live the data is.

curlBearer token from Account, then API Access
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
     "https://apexvol.com/api/mcp/data/flow/NVDA?detail=compact&limit=5"
Pythonrequests, nothing else
import requests

headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
params = {"detail": "compact", "limit": "5"}
r = requests.get("https://apexvol.com/api/mcp/data/flow/NVDA", headers=headers, params=params)
r.raise_for_status()
data = r.json()["data"]
print(data["top_strikes"])
In Claude, Cursor or ChatGPTthrough the MCP server, no code
You

What is the options flow on NVDA today, bullish or bearish?

The assistant calls get_options_flow and answers from the JSON below.

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/flow/NVDA?detail=compact&limit=5200, application/json, captured 2026-09-08
{
  "success": true,
  "data": {
    "all_flow": [
      {
        "ask": 10.15,
        "bid": 10.05,
        "delta": -0.4599,
        "dte": 38,
        "expiration": "2026-10-16",
        "is_unusual": false,
        "mid": 10.100000000000001,
        "moneyness": "OTM",
        "oi": 6669,
        "premium": 11948300.000000002,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.681049",
        "type": "PUT",
        "volume": 11830,
        "volume_oi_ratio": 1.773879142300195
      },
      {
        "ask": 4.0,
        "bid": 3.95,
        "delta": 0.5173,
        "dte": 3,
        "expiration": "2026-09-11",
        "is_unusual": false,
        "mid": 3.975,
        "moneyness": "ITM",
        "oi": 32787,
        "premium": 10783380.0,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.542239",
        "type": "CALL",
        "volume": 27128,
        "volume_oi_ratio": 0.8274011040961357
      },
      {
        "ask": 6.05,
        "bid": 5.95,
        "delta": 0.5225,
        "dte": 10,
        "expiration": "2026-09-18",
        "is_unusual": false,
        "mid": 6.0,
        "moneyness": "ITM",
        "oi": 57448,
        "premium": 10345800.0,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.600692",
        "type": "CALL",
        "volume": 17243,
        "volume_oi_ratio": 0.3001497005988024
      }
    ],
    "data_freshness": "EOD",
    "is_market_hours": false,
    "largest_flows": [
      {
        "ask": 10.15,
        "bid": 10.05,
        "delta": -0.4599,
        "dte": 38,
        "expiration": "2026-10-16",
        "is_unusual": false,
        "mid": 10.1,
        "moneyness": "OTM",
        "oi": 6669,
        "premium": 11948300.0,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.681049",
        "type": "PUT",
        "volume": 11830,
        "volume_oi_ratio": 1.7739
      },
      {
        "ask": 4.0,
        "bid": 3.95,
        "delta": 0.5173,
        "dte": 3,
        "expiration": "2026-09-11",
        "is_unusual": false,
        "mid": 3.975,
        "moneyness": "ITM",
        "oi": 32787,
        "premium": 10783380.0,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.542239",
        "type": "CALL",
        "volume": 27128,
        "volume_oi_ratio": 0.8274
      },
      {
        "ask": 6.05,
        "bid": 5.95,
        "delta": 0.5225,
        "dte": 10,
        "expiration": "2026-09-18",
        "is_unusual": false,
        "mid": 6.0,
        "moneyness": "ITM",
        "oi": 57448,
        "premium": 10345800.0,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.600692",
        "type": "CALL",
        "volume": 17243,
        "volume_oi_ratio": 0.3001
      }
    ],
    "message": "Market is closed. Showing end-of-day data from the most recent trading session.",
    "stock_price": 230.3,
    "success": true,
    "summary": {
      "call_put_ratio": 1.9932,
      "net_premium": 172969531.5,
      "put_call_ratio": 0.5017,
      "sentiment": "BULLISH",
      "total_call_premium": 317997531.0,
      "total_call_volume": 1172710.0,
      "total_flow_count": 342,
      "total_put_premium": 145027999.5,
      "total_put_volume": 588346.0
    },
    "ticker": "NVDA",
    "timestamp": "2026-09-08T08:07:24.702149",
    "top_expirations": [
      [
        "2026-09-18",
        {
          "premium": 100034602.0,
          "volume": 283452
        }
      ],
      [
        "2026-09-11",
        {
          "premium": 98571641.0,
          "volume": 539458
        }
      ],
      [
        "2026-10-16",
        {
          "premium": 87886168.0,
          "volume": 170080
        }
      ]
    ],
    "top_strikes": [
      [
        230.0,
        {
          "calls": 100849,
          "premium": 91238806.0,
          "puts": 87969,
          "volume": 188818
        }
      ],
      [
        235.0,
        {
          "calls": 194678,
          "premium": 76153200.5,
          "puts": 30408,
          "volume": 225086
        }
      ],
      [
        232.5,
        {
          "calls": 101063,
          "premium": 42516519.0,
          "puts": 37409,
          "volume": 138472
        }
      ]
    ],
    "unusual_activity": [
      {
        "ask": 2.65,
        "bid": 2.58,
        "delta": -0.4734,
        "dte": 1,
        "expiration": "2026-09-09",
        "is_unusual": true,
        "mid": 2.615,
        "moneyness": "OTM",
        "oi": 1454,
        "premium": 9326397.5,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.518008",
        "type": "PUT",
        "volume": 35665,
        "volume_oi_ratio": 24.5289
      },
      {
        "ask": 3.8,
        "bid": 3.75,
        "delta": -0.4827,
        "dte": 3,
        "expiration": "2026-09-11",
        "is_unusual": true,
        "mid": 3.775,
        "moneyness": "OTM",
        "oi": 2231,
        "premium": 8328782.5,
        "strike": 230.0,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.542254",
        "type": "PUT",
        "volume": 22063,
        "volume_oi_ratio": 9.8893
      },
      {
        "ask": 4.0,
        "bid": 3.9,
        "delta": -0.6144,
        "dte": 1,
        "expiration": "2026-09-09",
        "is_unusual": true,
        "mid": 3.95,
        "moneyness": "ITM",
        "oi": 226,
        "premium": 9502515.0,
        "strike": 232.5,
        "ticker": "NVDA",
        "timestamp": "2026-09-08T08:07:24.518071",
        "type": "PUT",
        "volume": 24057,
        "volume_oi_ratio": 106.4469
      }
    ],
    "window": {
      "detail": "compact",
      "limit": 5,
      "lists": {
        "all_flow": {
          "rows_returned": 5,
          "rows_total": 100,
          "truncated": true
        },
        "largest_flows": {
          "rows_returned": 5,
          "rows_total": 20,
          "truncated": true
        },
        "unusual_activity": {
          "rows_returned": 5,
          "rows_total": 20,
          "truncated": true
        }
      }
    }
  }
}

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.

NameInDefaultRangeMeaning
ticker requiredpathany covered symbolThe underlying, upper case. Use /search to check coverage.
detailqueryfull for REST, compact for MCP clientscompact or fullCapped lists or everything.
limitquery25rows in all_flow under compactRow cap.

Field by field

What each
number means.

summary.sentiment, net_premium, call_put_ratio
The read in three numbers.
largest_flows[].strike, expiration, type, premium, volume, oi
The biggest tickets.
unusual_activity[]
Contracts where volume dwarfs open interest.
top_strikes, top_expirations
Where the activity clusters.
window
What compact detail trimmed.

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_options_flow 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 options flow on NVDA today, bullish or bearish?

You

Show unusual options activity on AAPL.

You

What are the largest premium trades on SPY this session?

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

Next

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

Options flow APIThe contracts carrying the most premium today, the ones trading far above their open interest, the call and put totals behind the sentiment label. Per ticker, live during the session. Open Interest and Volume in Options ExplainedLearn the difference between open interest and volume in options, how to interpret them, and what they reveal about market sentiment right now. get_options_flow in an MCP clientPrompts for Claude, Cursor and ChatGPT that call this tool.

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.

Start free trial Create a free account

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

7 days free, cancel anytime Card required · no charge for 7 days
Start trial →