Nasdaq

Fortune 1000 company Nasdaq. Public real-time delivery is Apache Kafka via Nasdaq Cloud Data Service (NCDS); modeled here in AsyncAPI 2.6 with kafka bindings.

Nasdaq publishes 1 API on the APIs.io network: Cloud Data Service (NCDS) — Kafka Streams. Tagged areas include Fortune 1000.

The Nasdaq catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

📡 Source on GitHub

20.1/100 emerging ▬ flat Agent 14/100 agent aware library Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Fortune 1000

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 20.1/100 · emerging

Contract Quality 12.3 / 25

Developer Ergonomics 1.4 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.3 / 13

Contract Governance 1.6 / 12

Discoverability 4.4 / 10

Agent readiness — 14/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 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

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.

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APIs 1

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

Nasdaq Cloud Data Service (NCDS) — Kafka Streams

Real-time Nasdaq market data delivered over Apache Kafka (TLS) with SASL/OAUTHBEARER authentication against a Keycloak pro-realm token endpoint. Topics documented in the NCDS Ja...

Event Specifications 1

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

Nasdaq Cloud Data Service (NCDS) — Kafka Streams

AsyncAPI 2.6 description of the Nasdaq Cloud Data Service (NCDS) public delivery surface. NCDS delivers real-time exchange data over Apache Kafka (TLS) using SASL/OAUTHBEARER ag...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Nasdaq API Rules

6 rules · 1 errors 4 warnings 1 info

SPECTRAL

Security Posture 1

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

Nasdaq Domain Security

DMARC

SECURITY

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: nasdaq
tags:
- Fortune 1000
url: https://raw.githubusercontent.com/api-evangelist/nasdaq/refs/heads/main/apis.yml
name: Nasdaq
type: Index
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nasdaq.png
description: Fortune 1000 company Nasdaq. Public real-time delivery is Apache Kafka via Nasdaq Cloud Data Service (NCDS);
  modeled here in AsyncAPI 2.6 with kafka bindings.
created: '2026-05-05'
modified: '2026-05-29'
specificationVersion: '0.23'
common:
- type: DomainSecurity
  url: security/nasdaq-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/Nasdaq
- type: LinkedIn
  url: https://www.linkedin.com/company/nasdaq
apis:
- name: Nasdaq Cloud Data Service (NCDS) — Kafka Streams
  description: 'Real-time Nasdaq market data delivered over Apache Kafka (TLS) with SASL/OAUTHBEARER authentication against
    a Keycloak pro-realm token endpoint. Topics documented in the NCDS Java and Python SDKs: GIDS, NLSUTP, NLSCTA, NLSPLUS-UTP-V4,
    NLSPLUS-CTA-V4, NEWS-PRO-GLOBAL, UTPBIN-UF30. The full topic catalog is product-license-gated and delivered to subscribers
    during onboarding.

    '
  humanURL: https://github.com/Nasdaq/NasdaqCloudDataService
  baseURL: https://streams.ncds.nasdaq.com:9094
  tags:
  - Market Data
  - Kafka
  - Streaming
  - Avro
  properties:
  - type: GitHub
    url: https://github.com/Nasdaq/NasdaqCloudDataService
  - type: SDKs
    url: https://github.com/Nasdaq/NasdaqCloudDataService-SDK-Java
  - type: SDKs
    url: https://github.com/Nasdaq/NasdaqCloudDataService-SDK-Python
  - type: AsyncAPI
    url: https://raw.githubusercontent.com/api-evangelist/nasdaq/refs/heads/main/asyncapi/nasdaq-asyncapi.yml

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