# Zefr

**Canonical:** https://apis.io/providers/zefr/  
**Website:** https://zefr.com  
**APIs profiled:** 0

Zefr is an ad-tech content intelligence company that classifies social video, image, audio and text so advertisers can buy and measure media against brand safety and suitability standards. Its classification engine labels content across YouTube, Meta (Facebook and Instagram), TikTok, Snapchat, Google Ads and DV360 against the 4A's and GARM frameworks, and its Brand Suitability Suite gives brands pre-bid controls and post-bid measurement from a single console. Zefr has no public developer program: production API infrastructure exists (api.zefr.com is a Google Apigee gateway, alongside api2.zefr.com and api-eu1.zefr.com) but no developer portal, API reference or machine-readable contract is published anywhere, and access runs through a demo request. The only machine-readable documents Zefr serves publicly are the OpenID Connect and OAuth 2.0 Authorization Server Metadata discovery documents on its Auth0 custom domain, login.zefr.com.

## Kin Score — 19.2 / 100 (emerging)

Scored 2026-08-19 under rubric 0.12.0. Trend: flat (-0.6 from 19.8).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 19.0 |
| Commercial Clarity | 35.5 |
| Access Clarity | 35.5 |

## Agent readiness — 11.5 (agent-aware)

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

## Access

Enterprise / contact sales — onboarding: unknown, pricing: enterprise, trial: no (confidence: high).

## Security (3)

- **Zefr Authentication** — 2 schemes
- **Zefr Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Zefr Trust Center** — read, published, note

## Plans (1)

- **Zefr Plans Pricing**

## Tags

Company, Adtech, Brand Safety, Brand Suitability, Content Intelligence, Content Moderation, Video, Social Media, Advertising, Media Measurement, Machine Learning

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