Nielsen

Nielsen provides audience measurement, media planning, and data analytics services worldwide, delivering insights across TV, digital, audio, and sports media. Their platforms help brands understand consumer behavior and optimize marketing strategies through comprehensive cross‑media measurement and audience segmentation.

Nielsen is profiled on the APIs.io network. Tagged areas include Company, Audience Measurement, Media Analytics, DataInsights, and Marketing.

Nielsen’s developer surface includes engineering blog, support, documentation, getting-started guide, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
17.8/100 emerging ▬ flat Agent 4/100 human only Front door AI 2/6 trace Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0
0 APIs
CompanyAudience MeasurementMedia AnalyticsDataInsightsMarketing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0
Composite quality — 17.8/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 4.9 / 17
Access Clarity 4.9 / 17
Operational Transparency 0.0 / 11
Contract Governance 0.0 / 10
Discoverability 5.0 / 9
Regulatory Posture 2.8 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract 0 / 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 0 / 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 5 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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/.
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 github.com/api-evangelist/nielsen: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Nielsen Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Access & Security 2

Authentication, authorization, and security posture

TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 4

The organization behind the API

Blog
Blog
 BlogRSS
BlogRSS
 Newsroom
Newsroom
 Website
Website

Other 3

Properties that don't map to a standard resource type

Vendors
Vendors
 Hosts
Hosts
 Leadership
Leadership

Source (apis.yml)

apis.yml Raw ↑ 
aid: nielsen
name: Nielsen
image: https://www.nielsen.com/wp-content/uploads/sites/2/2024/01/home-page-meta-1200x675-1.jpg
description: Nielsen provides audience measurement, media planning, and data analytics services worldwide, delivering insights
  across TV, digital, audio, and sports media. Their platforms help brands understand consumer behavior and optimize marketing
  strategies through comprehensive cross‑media measurement and audience segmentation.
url: https://raw.githubusercontent.com/api-evangelist/nielsen/refs/heads/main/apis.yml
x-type: company
x-source: harvest:data
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-22 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-09-22'
modified: '2026-10-06'
tags:
- Company
- Audience Measurement
- Media Analytics
- DataInsights
- Marketing
tags_raw:
- Company
- AudienceMeasurement
- MediaAnalytics
- DataInsights
- Marketing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://www.nielsen.com/insights/type/article/
  type: Blog
- url: https://www.nielsen.com/insights/type/article/feed/
  type: BlogRSS
- type: Vendors
  url: vendors/nielsen-vendors.yml
- type: LLMsTxt
  url: llms/nielsen-llms.txt
- type: WellKnown
  url: well-known/nielsen-well-known.yml
- type: Hosts
  url: hosts/nielsen-hosts.yml
- type: TrustCenter
  url: https://trust.nielsen.com/
- type: TermsOfService
  url: https://www.nielsen.com/legal/terms-of-use/
- type: Support
  url: https://help.nielsen.com/hc/en-us
- type: PrivacyPolicy
  url: https://www.nielsen.com/legal/privacy-principles/
- type: Newsroom
  url: https://www.nielsen.com/insights/topic/media/
- type: Leadership
  url: https://www.nielsen.com/about-us/leadership/
- type: DomainSecurity
  url: security/nielsen-domain-security.yml
- type: Website
  url: https://nielsen.com/
- type: Documentation
  url: https://www.nielsen.com/solutions/
- type: GettingStarted
  url: https://www.nielsen.com/solutions/
apis: []
x-coverage:
  state: unreadable
  reason: js-rendered-docs
  detail: Help portal requires sign‑in and provides no machine‑readable API spec.
  evidence:
  - url: https://help.nielsen.com/hc/en-us
    status: 200
  checked: 2026-09-22
x-enrichment:
  date: '2026-09-22'
  status: enriched
  artifacts_added: 8
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local

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