Zemanta

Zemanta was a native advertising and content-recommendation technology company founded in 2007 (Ljubljana, Slovenia and New York), best known for Zemanta One, a self-serve programmatic demand-side platform (DSP) for native advertising. Zemanta was acquired by Outbrain in 2017 and its DSP has since been folded into the Outbrain / Teads advertising platform. The standalone one.zemanta.com console now redirects to dsp.outbrain.com and the former developers.zemanta.com API documentation is no longer resolvable, so there is no live first-party Zemanta public API surface today. This profile is retained in the API Evangelist network as a venture-portfolio lead with domain-level metadata.

Zemanta is profiled on the APIs.io network. Tagged areas include Company, Advertising, Native Advertising, Programmatic, and DSP.

🌐 Visit website 📡 Source on GitHub
11.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyAdvertisingNative AdvertisingProgrammaticDSPAdTechContent RecommendationMarketing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 11.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 4.2 / 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/zemanta: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Zemanta Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: zemanta
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/zemanta.png
name: Zemanta
description: Zemanta was a native advertising and content-recommendation technology company founded in 2007 (Ljubljana, Slovenia
  and New York), best known for Zemanta One, a self-serve programmatic demand-side platform (DSP) for native advertising.
  Zemanta was acquired by Outbrain in 2017 and its DSP has since been folded into the Outbrain / Teads advertising platform.
  The standalone one.zemanta.com console now redirects to dsp.outbrain.com and the former developers.zemanta.com API documentation
  is no longer resolvable, so there is no live first-party Zemanta public API surface today. This profile is retained in the
  API Evangelist network as a venture-portfolio lead with domain-level metadata.
url: https://raw.githubusercontent.com/api-evangelist/zemanta/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- seedcamp
- union-square-ventures
x-tier: stub
x-tier-reason: acquired-folded-into-outbrain-teads
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Advertising
- Native Advertising
- Programmatic
- DSP
- AdTech
- Content Recommendation
- Marketing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/zemanta-domain-security.yml
- type: Website
  url: https://zemanta.com
- type: TermsOfService
  url: https://vault.pactsafe.io/s/9ac72792-c7df-4d0d-832d-0ca873f73a64/legal.html#terms-of-service
- type: PrivacyPolicy
  url: https://www.outbrain.com/privacy/privacy-policy-outbrain-dsp/
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1