# Zemanta

**Canonical:** https://apis.io/providers/zemanta/  
**Website:** https://zemanta.com  
**APIs profiled:** 1

Zemanta is 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. Outbrain acquired Zemanta in 2017 and the DSP now trades as Teads DSP. The product line survived both the acquisition and the rebrand, and its API is live — the Teads DSP REST Campaign Management API, the former Zemanta One API, is still served from Zemanta-owned hosts, with the API endpoint at https://oneapi.zemanta.com/rest/v1 and a complete public reference at https://dev.zemanta.com/one/api/. The API covers accounts, credits, campaigns, budgets, goals, ad groups, ads, creatives, video assets, bid modifiers, measurement services, conversion definitions, audiences, publisher groups, deals, keyword lists, reporting and real-time statistics. Authentication is two-legged OAuth 2.0 client credentials; access is granted through a sales relationship rather than self-service sign-up. The console host one.zemanta.com 301-redirects every path to the matching path on dsp.outbrain.com.

## Kin Score — 25.7 / 100 (emerging)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-2.8 from 28.5).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 38.1 |
| Commercial Clarity | 27.6 |
| Access Clarity | 27.6 |

## Agent readiness — 17.5 (agent-aware)

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

## Access

Sales-gated — onboarding: unknown, pricing: unknown, trial: no (confidence: high).

## APIs (1)

- **Teads DSP API (Zemanta One)** — The Teads DSP REST Campaign Management API, formerly the Zemanta One API. It lets Teads DSP clients programmatically create and manage accounts, campaigns, budgets, campaign goa...

## Security (3)

- **Zemanta Authentication** — 2 schemes
- **Zemanta Domain Security** — TLSv1.3 · HSTS · DMARC
- **Zemanta Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Zemanta Plans Pricing**

## Tags

Company, Advertising, Native Advertising, Programmatic, DSP, AdTech, Content Recommendation, Marketing, Campaign Management, Demand Side Platform, Media Buying

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