Millennial Media

Millennial Media was a mobile advertising / adtech company surfaced as a portfolio company of bessemer-venture-partners and added to the API Evangelist network as a stub for enrichment. The enrichment probe (2026-07-20) found the company is defunct: millennialmedia.com now CNAMEs to rc.yahoo.com via AWS Global Accelerator on oath.cloud (Yahoo / Verizon Media / Oath infrastructure, consistent with the AOL acquisition of Millennial Media), and every host returns HTTP 404. There is no independent millennial-media developer portal, API, developer.* or api.* subdomain (NXDOMAIN), and no /.well-known/ or /llms.txt discovery surface. No API artifacts exist to enrich; this record is retained as a historical/company lead only.

Millennial Media is profiled on the APIs.io network. Tagged areas include Company, Advertising, AdTech, Mobile Advertising, and Defunct.

📡 Source on GitHub

0.0/100 minimal Agent 0/100 human only Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

0 APIs

Company Advertising AdTech Mobile Advertising Defunct Acquired

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 0.0/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 0.0 / 9

Regulatory Posture 0.0 / 15

Agent readiness — 0/100 · 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 0 / 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/millennial-media: 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 →

Source (apis.yml)

aid: millennial-media
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  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/millennial-media.png
name: Millennial Media
description: 'Millennial Media was a mobile advertising / adtech company surfaced as a portfolio company of bessemer-venture-partners
  and added to the API Evangelist network as a stub for enrichment. The enrichment probe (2026-07-20) found the company is
  defunct: millennialmedia.com now CNAMEs to rc.yahoo.com via AWS Global Accelerator on oath.cloud (Yahoo / Verizon Media
  / Oath infrastructure, consistent with the AOL acquisition of Millennial Media), and every host returns HTTP 404. There
  is no independent millennial-media developer portal, API, developer.* or api.* subdomain (NXDOMAIN), and no /.well-known/
  or /llms.txt discovery surface. No API artifacts exist to enrich; this record is retained as a historical/company lead only.'
url: https://raw.githubusercontent.com/api-evangelist/millennial-media/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Advertising
- AdTech
- Mobile Advertising
- Defunct
- Acquired
x-status: defunct
x-status-evidence:
- 'DNS: millennialmedia.com CNAME -> rc.yahoo.com -> AWS Global Accelerator (oath.cloud)'
- 'HTTP: www/root/docs return 404; developer.* and api.* are NXDOMAIN (probed 2026-07-20)'
- No /.well-known/security.txt, /.well-known/openid-configuration, or /llms.txt (all 404)
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: nochange
  artifacts_added: 0
  pass: local-v1

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