National Stock Exchange of India website screenshot

National Stock Exchange of India

National Stock Exchange of India Ltd (NSE) is India's largest stock exchange, operating the Capital Market, Futures & Options, Currency Derivatives, Commodity Derivatives, Debt and Electronic Gold Receipts segments, together with NSE Clearing, NSE Indices and NSE Data & Analytics Ltd (formerly DotEx International). NSE exposes its trading and post-trade systems to members and empanelled vendors through a published protocol surface rather than a public developer portal: binary Non-NEAT Front-End (NNF) and multicast tick-by-tick (MTBT) trading protocols, a Drop Copy facility, an Extranet API, a FIX 5.0 (SP2) interface for the RFQ platform, and JSON/HTTPS Web APIs for the RFQ, CBRICS bond, e-IPO/ASBA, Offer-For-Sale and MFSS platforms. Every one of those interfaces is documented only as a PDF or ZIP protocol document — NSE publishes no OpenAPI, AsyncAPI, SDK, Postman collection or machine-readable contract of any kind. Market data itself is vended commercially by NSE Data & Analytics under a subscription and data-vending agreement.

National Stock Exchange of India publishes 3 APIs on the APIs.io network. Tagged areas include Company, Stock Exchange, Capital Markets, Market Data, and Trading.

The National Stock Exchange of India catalog on APIs.io includes 1 event-driven AsyncAPI specification.

National Stock Exchange of India’s developer surface includes documentation, API reference, support, pricing, changelog, authentication, sandbox, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.7/100 thin ▬ flat Agent 34/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
3 APIs
CompanyStock ExchangeCapital MarketsMarket DataTradingFinancial ServicesSecuritiesIndiaFIX ProtocolBonds

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 39.7/100 · thin
Contract Quality 11.0 / 21
Developer Ergonomics 6.3 / 17
Commercial Clarity 5.4 / 17
Operational Transparency 2.6 / 11
Governance 1.3 / 10
Discoverability 6.9 / 9
Regulatory Posture 6.3 / 15
Agent readiness — 34/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/national-stock-exchange-of-india: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

NSE RFQ Web API

JSON over HTTPS Web API for the NSE Request-for-Quote (RFQ) platform for corporate bonds and debt securities. Documented in the "RFQ - Protocol for Web API" PDF published on the...

NSE CBRICS Web API

JSON over HTTPS Web API for CBRICS (Corporate Bond Reporting and Integrated Clearing System), NSE's reporting and settlement platform for corporate bond trades. Documented in th...

NSE Offer For Sale (OFS) Web API

JSON over HTTPS Web API for the NSE Offer-For-Sale platform, used by members to place, modify, cancel and query OFS orders and to stream market messages. Bearer access-token aut...

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

National Stock Exchange Of India Webhooks

ASYNCAPI

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

National Stock Exchange Of India Authentication

http/apiKey/mutualTLS · 5 schemes

SECURITY

National Stock Exchange Of India Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Webhooks
Webhooks
 Lifecycle
Lifecycle
 Conformance
Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

Packages
Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: national-stock-exchange-of-india
name: National Stock Exchange of India
description: 'National Stock Exchange of India Ltd (NSE) is India''s largest stock exchange, operating the Capital Market,
  Futures & Options, Currency Derivatives, Commodity Derivatives, Debt and Electronic Gold Receipts segments, together with
  NSE Clearing, NSE Indices and NSE Data & Analytics Ltd (formerly DotEx International). NSE exposes its trading and post-trade
  systems to members and empanelled vendors through a published protocol surface rather than a public developer portal: binary
  Non-NEAT Front-End (NNF) and multicast tick-by-tick (MTBT) trading protocols, a Drop Copy facility, an Extranet API, a FIX
  5.0 (SP2) interface for the RFQ platform, and JSON/HTTPS Web APIs for the RFQ, CBRICS bond, e-IPO/ASBA, Offer-For-Sale and
  MFSS platforms. Every one of those interfaces is documented only as a PDF or ZIP protocol document — NSE publishes no OpenAPI,
  AsyncAPI, SDK, Postman collection or machine-readable contract of any kind. Market data itself is vended commercially by
  NSE Data & Analytics under a subscription and data-vending agreement.'
url: https://raw.githubusercontent.com/api-evangelist/national-stock-exchange-of-india/refs/heads/main/apis.yml
image: https://www.nseindia.com/assets/images/NSE_Logo.svg
x-type: company
x-source: harvest:secondary-market
x-secondary-market-listing: https://www.hiive.com/securities/national-stock-exchange-of-india-stock
x-tier: profiled
x-tier-reason: enrichment-pipeline
specificationVersion: '0.20'
created: '2026-08-04'
modified: '2026-08-04'
tags:
- Company
- Stock Exchange
- Capital Markets
- Market Data
- Trading
- Financial Services
- Securities
- India
- FIX Protocol
- Bonds
apis:
- name: NSE RFQ Web API
  description: 'JSON over HTTPS Web API for the NSE Request-for-Quote (RFQ) platform for corporate bonds and debt securities.
    Documented in the "RFQ - Protocol for Web API" PDF published on the NSE trading protocols page: 41 operations across login/session,
    RFQ master, market watch, negotiation, deal, deal amendment, participant group, participant limit and portfolio limit,
    plus an optional participant-implemented callback API for RFQ notifications.'
  humanURL: https://www.nseindia.com/static/trade/platform-services-neat-trading-system-protocols
  baseURL: https://bricsonline.nseindia.com/rfq
  tags:
  - RFQ
  - Bonds
  - Debt
  - Negotiation
  properties:
  - type: Documentation
    url: https://nsearchives.nseindia.com/web/mediaattachment/2026-07/RFQ_-_Protocol_for_Web_API_-_Ver_1.1.10_20260703110148.pdf
  - type: APIReference
    url: https://nsearchives.nseindia.com/web/mediaattachment/2026-07/RFQ_-_Protocol_for_Web_API_-_Ver_1.1.10_20260703110148.pdf
- name: NSE CBRICS Web API
  description: JSON over HTTPS Web API for CBRICS (Corporate Bond Reporting and Integrated Clearing System), NSE's reporting
    and settlement platform for corporate bond trades. Documented in the "WEB CBRICS PROTOCOL" PDF on the NSE trading protocols
    page; an API-enabled CBRICS user is the prerequisite for enabling the RFQ Web API.
  humanURL: https://www.nseindia.com/static/trade/platform-services-neat-trading-system-protocols
  baseURL: https://bricsonline.nseindia.com/bondsnew
  tags:
  - CBRICS
  - Bonds
  - Reporting
  properties:
  - type: Documentation
    url: https://nsearchives.nseindia.com/web/mediaattachment/2026-02/WEB_CBRICS_PROTOCOL_1.16_20260216103027.pdf
- name: NSE Offer For Sale (OFS) Web API
  description: JSON over HTTPS Web API for the NSE Offer-For-Sale platform, used by members to place, modify, cancel and query
    OFS orders and to stream market messages. Bearer access-token authentication with a refresh-token endpoint; includes a
    server-sent message stream (GET /messaging/message-stream). Documented in the "OFS-WEB API" PDF on the NSE trading protocols
    page.
  humanURL: https://www.nseindia.com/static/trade/platform-services-neat-trading-system-protocols
  baseURL: https://eofs.nseindia.com/api/
  tags:
  - Offer For Sale
  - Orders
  - Equities
  properties:
  - type: Documentation
    url: https://nsearchives.nseindia.com/web/mediaattachment/2026-05/OFS-WEB_API_Ver1.3.4_20260519122437.pdf
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/national-stock-exchange-of-india-domain-security.yml
- type: Website
  url: https://www.nseindia.com/
- type: Documentation
  url: https://www.nseindia.com/static/trade/platform-services-neat-trading-system-protocols
- type: APIReference
  url: https://www.nseindia.com/static/trade/platform-services-neat-trading-system-protocols
- type: Support
  url: https://www.nseindia.com/static/list-contact-us
- type: Pricing
  url: https://www.nseindia.com/static/nse-data-and-analytics/data-information-vending
- type: TermsOfService
  url: https://www.nseindia.com/static/nse-terms-of-use
- type: PrivacyPolicy
  url: https://www.nseindia.com/static/privacy-policy
- type: ChangeLog
  url: https://www.nseindia.com/resources/exchange-communication-circulars
- type: ChangeLog
  url: changelog/national-stock-exchange-of-india-changelog.yml
- type: Authentication
  url: authentication/national-stock-exchange-of-india-authentication.yml
- type: Conventions
  url: conventions/national-stock-exchange-of-india-conventions.yml
- type: ErrorCatalog
  url: errors/national-stock-exchange-of-india-problem-types.yml
- type: Webhooks
  url: asyncapi/national-stock-exchange-of-india-webhooks.yml
- type: Sandbox
  url: sandbox/national-stock-exchange-of-india-sandbox.yml
- type: Lifecycle
  url: lifecycle/national-stock-exchange-of-india-lifecycle.yml
- type: Conformance
  url: conformance/national-stock-exchange-of-india-conformance.yml
- type: Packages
  url: packages/national-stock-exchange-of-india-packages.yml
- type: LLMsTxt
  url: llms/national-stock-exchange-of-india-llms.txt
x-enrichment:
  date: '2026-08-04'
  status: enriched
  artifacts_added: 12
  pass: local-v1