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.

🌐 Visit website 📡 Source on GitHub

6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyAdvertisingAdTechMobile AdvertisingDefunctAcquired

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 6.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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/millennial-media: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Source (apis.yml)

aid: millennial-media
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: '0.20'
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