Peer39

Peer39 is a contextual advertising and intelligence company that provides pre-bid controls and post-buy analytics built on verified contextual data for programmatic media buyers. Its platform delivers contextual targeting, brand safety and suitability, and contextual analytics across web, mobile, and connected TV (CTV) and video environments, helping advertisers and platforms make privacy-forward, cookieless media decisions. Peer39 was surfaced as a portfolio company of Canaan Partners and added to the API Evangelist network. As of this enrichment pass, Peer39 exposes no public API or developer portal — access is via an authenticated customer application (app.peer39.com) and platform integrations rather than a documented, self-serve developer surface.

Peer39 is profiled on the APIs.io network. Tagged areas include Company, Contextual Advertising, AdTech, Brand Safety, and Programmatic Advertising.

Peer39’s developer surface includes engineering blog, support, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

14.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyContextual AdvertisingAdTechBrand SafetyProgrammatic AdvertisingContextual TargetingCTVMarTech

Kin Score

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

Composite quality — 14.9/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 6.8 / 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/peer39: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 1

Portal, sign-up, and the first successful call

Login

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: peer39
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/peer39.png
name: Peer39
description: Peer39 is a contextual advertising and intelligence company that provides pre-bid controls and post-buy analytics
  built on verified contextual data for programmatic media buyers. Its platform delivers contextual targeting, brand safety
  and suitability, and contextual analytics across web, mobile, and connected TV (CTV) and video environments, helping advertisers
  and platforms make privacy-forward, cookieless media decisions. Peer39 was surfaced as a portfolio company of Canaan Partners
  and added to the API Evangelist network. As of this enrichment pass, Peer39 exposes no public API or developer portal —
  access is via an authenticated customer application (app.peer39.com) and platform integrations rather than a documented,
  self-serve developer surface.
url: https://raw.githubusercontent.com/api-evangelist/peer39/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- canaan-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Contextual Advertising
- AdTech
- Brand Safety
- Programmatic Advertising
- Contextual Targeting
- CTV
- MarTech
apis: []
common:
- type: DomainSecurity
  url: security/peer39-domain-security.yml
- type: LLMsTxt
  url: llms/peer39-llms.txt
- type: Website
  url: https://www.peer39.com
- type: Blog
  url: https://www.peer39.com/blog
- type: Login
  url: https://app.peer39.com/login
- type: Support
  url: https://www.peer39.com/contact-us
- type: TermsOfService
  url: https://www.peer39.com/service-terms
- type: PrivacyPolicy
  url: https://www.peer39.com/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 2
  pass: local-v1