# Millennial Media

**Canonical:** https://apis.io/providers/millennial-media/  
**APIs profiled:** 0

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.

## Kin Score — 5.0 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 5.0).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Tags

Company, Advertising, AdTech, Mobile Advertising, Defunct, Acquired

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/millennial-media/). Scores are computed from the provider's own public artifacts under a published rubric.