nse-scanner

name	nse-scanner
description	NSE scans: top gainers/losers, volume surges, 52w highs/lows
category	india
version	1.0.0
tags	nse, stock, india, scanner, gainers, losers, equity, market, screener
license	Apache-2.0

NSE Scanner

Scan the NSE equity market for top movers, volume spikes, and price extremes using NSE's publicly accessible JSON APIs — no API key required.

When to Use

• User asks for today's top gainers or losers on NSE
• User wants stocks hitting 52-week highs or lows
• User asks for unusual volume activity or surge stocks
• User wants a quick market overview (advances vs declines)
• User asks "which Nifty 50 stocks are up/down today?"

How to Use

Top gainers on NSE today

$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
$session = Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers
$resp = Invoke-RestMethod -Uri "https://www.nseindia.com/api/live-analysis-variations?index=gainers" `
  -Headers $headers -WebSession $nse
$resp.NIFTY.data | Sort-Object pChange -Descending | Select-Object -First 10 |
  Select-Object symbol, ltp, netPrice, pChange

Top losers on NSE today

$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
$session = Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers
$resp = Invoke-RestMethod -Uri "https://www.nseindia.com/api/live-analysis-variations?index=losers" `
  -Headers $headers -WebSession $nse
$resp.NIFTY.data | Sort-Object pChange | Select-Object -First 10 |
  Select-Object symbol, ltp, netPrice, pChange

52-week highs

$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
$session = Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers
$resp = Invoke-RestMethod -Uri "https://www.nseindia.com/api/live-analysis-variations?index=high52" `
  -Headers $headers -WebSession $nse
$resp.data | Select-Object symbol, ltp, pChange | Select-Object -First 20

Nifty 50 snapshot

$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
$session = Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers
$resp = Invoke-RestMethod -Uri "https://www.nseindia.com/api/equity-stockIndices?index=NIFTY%2050" `
  -Headers $headers -WebSession $nse
$resp.data | Select-Object symbol, lastPrice, pChange, totalTradedVolume |
  Sort-Object pChange -Descending

Market breadth (advances vs declines)

$headers = @{ "User-Agent" = "Mozilla/5.0"; "Referer" = "https://www.nseindia.com" }
$session = Invoke-WebRequest -Uri "https://www.nseindia.com" -SessionVariable nse -Headers $headers
$resp = Invoke-RestMethod -Uri "https://www.nseindia.com/api/market-data-pre-open?key=ALL" `
  -Headers $headers -WebSession $nse
$resp.data | Group-Object { if ($_.metadata.pChange -gt 0) { "Advances" } else { "Declines" } } |
  Select-Object Name, Count

Examples

"Show me today's top 5 Nifty gainers" → Fetch gainers API, filter NIFTY data, sort by pChange descending, display top 5 with symbol, LTP, and % change.

"Any stocks hitting 52-week highs today?" → Fetch high52 endpoint and list symbols with their current price and % change.

"How is the overall market today — more advances or declines?" → Fetch pre-open market data, group by positive/negative pChange, show counts.

Cautions

• NSE APIs require a session cookie obtained by first visiting https://www.nseindia.com — always initialize the session before API calls
• NSE may rate-limit or block automated requests; add a small delay between calls if running bulk scans
• Market data is available only during trading hours (Mon–Fri, 9:15 AM – 3:30 PM IST)
• API endpoints and response structure may change — verify against NSE website if calls fail