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 is listed with 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 📡 Profile data on GitHub

30.1/100 thin ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

3 APIs

Company Stock Exchange Capital Markets Market Data Trading Financial Services Securities India FIX Protocol Bonds

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 30.1/100 · thin

Contract Quality 8.3 / 21

Developer Ergonomics 5.1 / 17

Access Clarity 2.7 / 17

Operational Transparency 1.7 / 11

Contract Governance 1.9 / 10

Discoverability 6.1 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 15.8 — up to +16.8 composite points
Contract Quality scores 39.0 — up to +15.3 composite points
Developer Ergonomics scores 29.8 — up to +14.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/national-stock-exchange-of-india/apis.yml: open an issue on github.com/api-evangelist/national-stock-exchange-of-india to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
India RBI / SEBI Registers (SEBI intermediaries, RBI NBFCs, payment aggregators, PPI issuers, AAs)	covered	34.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

FIX Protocol

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

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

ErrorCatalog

Webhooks

Lifecycle

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)

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
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: '0.23'
created: '2026-08-04'
modified: '2026-08-04'
tags:
- Company
- Stock Exchange
- Capital Markets
- Market Data
- Trading
- Financial Services
- Securities
- India
- FIX Protocol
- Bonds
tags_raw:
- Company
- Stock Exchange
- Capital Markets
- Market Data
- Trading
- Financial Services
- Securities
- India
- FIX Protocol
- Bonds
- Financial-Services
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
  - Order
  - Stocks
  tags_raw:
  - 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

National Stock Exchange of India API — frequently asked questions

Does National Stock Exchange of India have an API?

Yes. APIs.io lists 3 APIs from National Stock Exchange of India, including NSE RFQ Web API, NSE CBRICS Web API and NSE Offer For Sale (OFS) Web API.

How do I authenticate with the National Stock Exchange of India API?

National Stock Exchange of India uses bearer-token authentication (http/apiKey/mutualTLS · 5 schemes). The details are profiled on APIs.io as National Stock Exchange Of India Authentication.

Is the National Stock Exchange of India API ready for AI agents?

National Stock Exchange of India has a Kin Score of 30.1 out of 100 (thin) and an Agent Readiness score of 22.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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