451 Degrees

451 Degrees is a marketing-technology and ad-tech company founded in 2006 that builds Graffiti, a patented AI content ecosystem for digital content and ad-tech businesses. Graffiti uses machine learning, artificial intelligence, and natural language processing to analyze user-generated comments and digital content in real time, converting comment "noise" into structured data that powers brand safety, contextual relevancy, content recommendation, and first-party data strategies. It is designed as a platform-agnostic tool that complements existing comment platforms, ad delivery networks, and content systems rather than replacing them, and markets itself as privacy-compliant with GDPR and CCPA while using no cookies, mobile IDs, or IDFA for targeting.

451 Degrees is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Ad Tech, Brand Safety, and Contextual Advertising.

451 Degrees’ developer surface includes support and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

7.6/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyArtificial IntelligenceAd TechBrand SafetyContextual AdvertisingContent ModerationNatural Language ProcessingMachine LearningMarketing TechnologyPrivacy

Kin Score

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

Composite quality — 7.6/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.9 / 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/451-degrees: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 4

The organization behind the API

Website

About

Twitter

Facebook

Other 1

Properties that don't map to a standard resource type

Product

Product

Source (apis.yml)

aid: 451-degrees
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/451-degrees.png
name: 451 Degrees
description: 451 Degrees is a marketing-technology and ad-tech company founded in 2006 that builds Graffiti, a patented AI
  content ecosystem for digital content and ad-tech businesses. Graffiti uses machine learning, artificial intelligence, and
  natural language processing to analyze user-generated comments and digital content in real time, converting comment "noise"
  into structured data that powers brand safety, contextual relevancy, content recommendation, and first-party data strategies.
  It is designed as a platform-agnostic tool that complements existing comment platforms, ad delivery networks, and content
  systems rather than replacing them, and markets itself as privacy-compliant with GDPR and CCPA while using no cookies, mobile
  IDs, or IDFA for targeting.
url: https://raw.githubusercontent.com/api-evangelist/451-degrees/refs/heads/main/apis.yml
x-type: company
x-source: a16z-portfolio
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Artificial Intelligence
- Ad Tech
- Brand Safety
- Contextual Advertising
- Content Moderation
- Natural Language Processing
- Machine Learning
- Marketing Technology
- Privacy
apis: []
common:
- type: DomainSecurity
  url: security/451-degrees-domain-security.yml
- type: Website
  url: http://www.451degrees.com/
- type: Product
  url: http://www.451degrees.com/product/
- type: About
  url: http://www.451degrees.com/about/
- type: Support
  url: http://www.451degrees.com/contact/
- type: Twitter
  url: https://twitter.com/451degrees
- type: Facebook
  url: https://www.facebook.com/451DegreesGraffiti
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence