AION Edge Engine

The problem

Intraday signals are not scarce. Any charting package will generate more of them in an hour than anyone could act on, and most are noise dressed up as a pattern.

The harder question is the one that usually goes unanswered: a pattern has fired, but does an edge actually exist here, and is it still an edge once spread, slippage and costs are taken out? Those are different questions, and conflating them is how a strategy that looks profitable on a chart loses money in an account.

How it solves it

Edge Engine assesses each contract continuously and answers the two questions separately: whether an edge is present, and whether it is tradable after costs.

It is the single authority for tradability in the AION stack. Nothing further down the chain may override it, which prevents the common failure where a more optimistic component quietly overrules the more conservative one and the system ends up trading things it had already judged untradable.

Its output is a contract, not a suggestion: consistent fields, on every contract, whether or not the answer is interesting. An honest "no edge here" is the most frequent response, and that is the system working rather than failing.

Where it sits in your system

Edge Engine is the last check before your own order logic. Your system decides what it wants to trade; Edge Engine answers, for that contract and that moment, whether a tradable edge exists. It can stop a trade. It never starts one, and it never sees your orders, positions or account.

Fail closed: if the API is unreachable, returns no fresh reading, or the as-of time is older than your own tolerance, treat the answer as "no" and stand aside.

The API

Base URL https://aionanalytics.in/api/v1/edge. Send your key in the X-API-Key header. Keys are issued after checkout and are scoped to Edge Engine and to the indices on your plan.

curl -H "X-API-Key: $AION_EDGE_KEY" \
  "https://aionanalytics.in/api/v1/edge/snapshot?underlying=nifty"

The full response, with real readings, is shown in What you receive below.

• Freshness. A contract appears only if it is unexpired and its last exchange tick is under 15 minutes old. Outside market hours the response is "status": "no_fresh_readings" with an empty list. Stale readings are never served.
• Thin history. tradable also needs enough history behind it, so it can stay false even when the score looks positive. SENSEX has a shorter live history than NIFTY and says "no edge" more often.
• Polling. Readings look five minutes ahead and the server refreshes them continuously. Once a minute per index is enough; faster polling returns the same answer and uses your daily cap.
• Errors. 401 missing key, 403 key not active or index not on your plan, 404 unknown index or contract, 429 daily cap reached.

import requests

def edge_allows(symbol, key, index="nifty"):
    r = requests.get("https://aionanalytics.in/api/v1/edge/snapshot",
                     params={"underlying": index, "symbol": symbol},
                     headers={"X-API-Key": key}, timeout=5)
    if r.status_code != 200:
        return False          # fail closed
    rows = r.json().get("contracts", [])
    return bool(rows) and rows[0]["tradable"]

What you receive

This is the JSON your system receives from GET /snapshot?underlying=nifty. The readings are real, from the NIFTY session on 29 September 2026 at 11:39 IST; the contract list is shortened to three of the 98 returned.

{
  "model": "edge-engine",
  "underlying": "nifty",
  "display_name": "NIFTY 50",
  "exchange": "NSE F&O",
  "session": "09:15-15:30 IST",
  "note": null,
  "generated_at": "2026-09-29T06:10:02.114000+00:00",
  "count": 98,
  "tradable_count": 0,
  "status": "ok",
  "message": null,
  "contracts": [
    {
      "symbol": "NFONIFTY26SEP22200CE",
      "instrument": "CE",
      "strike": 22200.0,
      "expiry": "2026-09-29",
      "tradable": false,
      "edge_score": 0.3759,
      "lower_bound": -4.254,
      "as_of": "2026-09-29T06:09:20.787000+00:00"
    },
    {
      "symbol": "NFONIFTY26O0622300PE",
      "instrument": "PE",
      "strike": 22300.0,
      "expiry": "2026-10-06",
      "tradable": false,
      "edge_score": 1.1425,
      "lower_bound": -0.227,
      "as_of": "2026-09-29T06:09:18.402000+00:00"
    },
    {
      "symbol": "NFONIFTY26SEPFUT",
      "instrument": "FUT",
      "strike": null,
      "expiry": "2026-09-29",
      "tradable": false,
      "edge_score": 3.8682,
      "lower_bound": -3.012,
      "as_of": "2026-09-29T06:09:21.055000+00:00"
    }
  ],
  "usage": {"daily_count": 12, "daily_cap": 166},
  "disclaimer": "Informational only. Not investment advice and not a recommendation to buy or sell. Edge Engine does not place orders."
}

Reading this response

• All three contracts show a positive edge_score, and all three are tradable: false. Each lower_bound is below zero: the conservative estimate does not clear, so there is no edge to act on. That day, no NIFTY contract was tradable, which is the most common answer.
• as_of is the exchange tick behind each reading, in UTC (06:09 UTC is 11:39 IST). Readings older than 15 minutes are never served.
• usage shows how many of your daily requests you have used.

Outside market hours

{
  "model": "edge-engine",
  "underlying": "nifty",
  "status": "no_fresh_readings",
  "message": "No contract has an exchange tick in the last 15 minutes. The market may be closed or the feed idle. Stale readings are never served.",
  "count": 0,
  "tradable_count": 0,
  "contracts": [],
  ...
}

Errors

Errors arrive as {"error": {"code": "HTTP_403", "message": "...", "details": {}}}. Treat any error as "no answer" and stand aside.

Plans

No free trial. If you are not satisfied, ask for a full refund within 2 days of your first payment. See the refund policy.

What it will not do

• It does not place orders and it is not a strategy. It is an assessment layer that other systems consume.
• It will not manufacture an edge to fill a quiet session. Most of the time, on most contracts, the answer is no.
• An edge is a statistical statement about many occurrences. It says nothing about whether any individual trade will work.