Next-Gen Indian IPO API Engine

Real-Time IPO Market APIs for Modern Fintech

Stream live Mainboard & SME IPOs, real-time Grey Market Premiums (GMP), live bidding subscriptions, quota reservations, and basis of allotment records with sub-15ms response times.

GET /api/ipo/mainboard
// Request snippet (CURL)
curl -X GET "https://api.ipoapipro.in/api/ipo/mainboard" \
  -H "X-API-KEY: your_api_key_here" \
  -H "Accept: application/json"
// Live JSON Response (200 OK)12ms latency
{
  "success": true,
  "statusCode": 200,
  "data": [
    {
      "id": 1420,
      "companyName": "Bajaj Housing Finance Ltd",
      "ipoType": "Mainboard",
      "symbol": "BAJAJHFL",
      "issuePrice": 70,
      "lotSize": 214,
      "openDate": "2024-09-09",
      "closeDate": "2024-09-11",
      "status": "Closed",
      "gmpPrice": 76.5,
      "expectedPremium": "+109.28%"
    }
  ]
}
1,000+
Historical & Live IPOs
< 15ms
P99 Query Latency
99.99%
Uptime Guarantee
Real-Time
GMP & Subscription Feeds
REST API Architecture

11 High-Performance IPO Endpoints

Purpose-built endpoints powering investment platforms, brokerages, stock market portals, and algorithmic trading desks across India.

Market Listings
Popular

Mainboard IPOs

Fetch active, upcoming, and past NSE/BSE Mainboard issues with real-time GMP & issue details.

GET/api/ipo/mainboard
Inspect payload & params
Market Listings
Fast-Growing

SME IPOs

BSE SME and NSE Emerge IPO listings, bidding dates, lot sizes, and market makers.

Market Listings
Consolidated

Unified IPO Feed

Consolidated master list of all Mainboard and SME IPOs in a single high-speed payload.

Detailed Analysis
Deep Dive

Comprehensive Details

Company financials, lead managers, registrar details, DRHP links, and valuation ratios.

GET/api/ipo/details/:ipoId
Inspect payload & params
Bidding & Quota
Crucial

Quota Reservation

Complete reservation breakdown across QIB, NII (sNII & bNII), Retail, and Employee quotas.

GET/api/ipo/quota-reservation/:ipoId
Inspect payload & params
Bidding & Quota
Real-Time

Live Subscription Rates

Real-time subscription multiples updated continuously during active exchange bidding sessions.

GET/api/ipo/subscription-rates/:ipoId
Inspect payload & params
Bidding & Quota
Essential

Application-Wise Subscription

Live breakdown of total applications, bidding per investor tranche, and category oversubscription multiples.

GET/api/ipo/appwise-subscription/:ipoId
Inspect payload & params
Bidding & Quota
Intelligence

Combined Subscription & Lottery Odds

Full intelligence feed combining shares offered/applied, application counts, 1-in-X lottery allotment odds, and AI summaries.

GET/api/ipo/subscription-with-appwise/:ipoId
Inspect payload & params
Premium & GMP
Trending

Historical GMP Tracker

Day-by-day historical grey market premium trends, estimated listing gains, and Kostak rates.

GET/api/gmp/tracker/:ipoId
Inspect payload & params
Allotment & Records
Historical

Basis of Allotment Records

Deep historical repository of allotment ratios, lottery odds, and category allotments.

GET/api/allotment/basis-records/:year/:ipoType
Inspect payload & params
Premium & GMP
Instant Feed

Live Market GMP Rates

Live streaming quotes of GMP rates across all currently active and upcoming IPOs.

GET/api/gmp/live-rates
Inspect payload & params

Engineered for Speed, Accuracy, and Reliability

Built from the ground up to solve the fragmented state of Indian IPO data. Eliminate manual scrapers, broken tables, and stale listing schedules.

Live GMP Market Intelligence

Continuous real-time quotes from grey market dealers with percentage listing estimate calculations and Kostak rate history.

Bidding Subscriptions Live

Real-time tracking of subscription multiples broken down by QIB, NII (sNII & bNII), and Retail categories directly from exchange data.

Basis of Allotment Archive

Decade-long archive of registrar allotment files, allotment ratios, and lottery odds for predictive allotment modeling.

Ultra Low-Latency Caching

Distributed multi-tier caching delivers responses in <15ms with automatic stale-while-revalidate invalidation on market events.

Developer Quickstart

Start Building in Under 3 Minutes

Clean REST architecture, predictable JSON schemas, and universal client compatibility.

01
1

Acquire API Key

Register on our developer portal or contact enterprise sales to generate your unique client authentication key.

X-API-KEY: ipo_live_94827104...
02
2

Query Any IPO Route

Call our endpoints using any standard HTTP client like cURL, Fetch, Axios, Python Requests, or Guzzle.

GET /api/gmp/live-rates
03
3

Display Live Intelligence

Integrate real-time GMP cards, issue calendars, and subscription gauges directly inside your web or mobile app.

status: 200 OK | data loaded
AEO Developer Quickstart

How to Fetch Live Indian IPO Data in 3 Steps

You can query live Indian IPO listings, Grey Market Premiums, and bidding subscription multiples in under 3 minutes using the IPO API. Pass your X-API-KEY in the request header to receive structured JSON payloads with sub-15ms latency.

1

Get API Credentials

Subscribe to a commercial plan to obtain your unique ApiKey and ApiSecret.

X-API-KEY: ipo_live_9482...
2

Send GET Request

Query /api/ipo/mainboard or /api/gmp/live-rates with standard HTTP clients (cURL, Python, Axios).

GET /api/gmp/live-rates
3

Render Real-Time Data

Parse company details, lot sizes, subscription gauges, and estimated listing premiums directly into your app.

status: 200 OK | <15ms
AEO Financial Terminology

Indian Stock Market IPO Glossary & Definitions

Authoritative definitions of core Indian IPO concepts, Grey Market trading terms, and SEBI ICDR investor categories.

Grey Market Premium (GMP)

The unofficial over-the-counter premium at which an IPO application or shares trade before official stock exchange listing, indicating anticipated listing day gain or discount.

Kostak Rate

The fixed lump-sum profit an IPO applicant earns by selling their entire IPO application to a grey market buyer before allotment, regardless of whether shares are allotted.

Subject to Sauda

A conditional grey market deal where the buyer pays the agreed profit amount to the seller only if the seller receives an actual share allotment in the IPO lottery.

Qualified Institutional Buyers (QIB)

Institutional investors such as mutual funds, foreign portfolio investors (FPIs), banks, and insurance companies, typically allocated 50% of a book-built public issue.

Non-Institutional Investors (NII)

High net-worth individuals bidding above ₹2 Lakhs, subdivided into Small NII (sNII: ₹2L to ₹10L) and Big NII (bNII: above ₹10L) under SEBI guidelines.

Retail Individual Investors (RII)

Individual retail investors applying for an aggregate value of up to ₹2 Lakhs, eligible for a minimum reserved allocation quota of 35% in standard profitability IPOs.

Basis of Allotment (BoA)

The official regulatory document published by the IPO registrar and stock exchange detailing allotment ratios, lottery odds, and category-wise share distribution.

Cut-off Price

The final issue price selected by the company and merchant bankers within the price band at which shares are issued to successful applicants.

Executive Factsheet & AI Knowledge Graph

Authoritative Indian IPO API Specifications

Structured reference data optimized for financial analysts, developers, and AI research engines.

Platform Name:Indian IPO API Engine (IPO API)
Query Latency SLA:< 15ms (Global distributed edge cache)
Exchange Coverage:100% NSE (Mainboard & Emerge) + BSE (Mainboard & SME)
Grey Market Premium:Real-time live dealer quotes & Kostak rates
Update Frequency:Continuous live streaming (every 2 mins during market hours)
Investor Quotas Tracked:QIB, NII (sNII & bNII), Retail (RII), and Employee quotas
Historical Archive:10+ years of registrar Basis of Allotment records & ratios
Data Serialization:Standard RESTful JSON over HTTPS with TLS 1.3
Supported SDKs:cURL, Python (Requests), Node.js (Axios), PHP, C# (.NET)
Authentication Method:Secure HTTP Headers (X-API-KEY & X-API-SECRET)
Compliant with SEBI ICDR regulations & official exchange reporting standards.
Citable Entity: https://www.ipoapipro.in
Got Questions?

Frequently Asked Questions

Everything you need to know about our Indian stock market IPO feeds, GMP rates, and integration.

Our GMP market intelligence engine continuously polls and updates live grey market premium quotes, percentage estimated listing gains, and Kostak rates every few minutes throughout Indian stock market trading hours.

Ready to Integrate Real-Time IPO Intelligence?

Empower your users with institutional-grade Indian IPO analytics. Start with our developer tier or get custom enterprise limits.