451 Degrees website screenshot

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 8 more developer resources.

6.6/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
AccessEnterpriseApproval
0 APIs
CompanyArtificial IntelligenceAd TechBrand SafetyContextual AdvertisingContent ModerationNatural Language ProcessingMachine LearningMarketing TechnologyPrivacy

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 6.6/100 · 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 5.7 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 7 / 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
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 →

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

451 Degrees Rate Limits

0 limits

RATE LIMITS

Security Posture 1

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

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Access & Security 1

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Company 4

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: 451-degrees
accessModel:
  pricing: enterprise
  onboarding: approval
  trial: false
  try_now: false
  public: false
  label: Enterprise · Requires approval
  confidence: high
  source:
  - http://www.451degrees.com/product/
  - http://www.451degrees.com/contact/
  generated: '2026-08-12'
  method: searched
  note: No pricing page, no plans, no signup and no developer portal exist. The only published route to Graffiti is the "Contact
    Us for a Demo" call to action and a name/email/message contact form, so access is enterprise, approval-gated, and not
    self-serve.
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: '2026-08-12'
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: Conformance
  url: conformance/451-degrees-conformance.yml
- type: LLMsTxt
  url: llms/451-degrees-llms.txt
- 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: '2026-08-12'
  status: minimal
  artifacts_added: 5
  pass: local-v1
x-coverage:
  state: gated
  reason: sales-gate
  detail: 451 Degrees markets Graffiti as integrating "with simple API construction to current Comment Platforms and Ad Delivery
    Networks" and its own investor one-sheet claims real-time APIs delivered to five ad networks, but the entire public surface
    is a four-page WordPress marketing site whose only developer call to action is "Contact Us for a Demo" — there is no reference,
    no portal, and api./developer./docs./dev./portal.451degrees.com are all NXDOMAIN.
  evidence:
  - url: http://www.451degrees.com/product/
    status: 200
  - url: http://www.451degrees.com/developers/
    status: 404
  - url: http://www.451degrees.com/openapi.json
    status: 404
  - url: http://www.451degrees.com/.well-known/agent-card.json
    status: 404
  checked: '2026-08-12'