# Ninetailed

**Canonical:** https://apis.io/providers/ninetailed/  
**Website:** https://www.contentful.com/products/personalization/  
**APIs profiled:** 2

Ninetailed (now Contentful Personalization) is an API-first personalization and experimentation platform for content-rich applications. It provides a REST-based Experience API for managing visitor profiles, defining audience segments, running A/B tests, and delivering personalized experiences at the edge. SDKs are available for JavaScript, React, Next.js, Node.js, and React Native.

## Kin Score — 43.6 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 43.6).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 67.1 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 7.1 |
| Commercial Clarity | 52.6 |
| Access Clarity | 52.6 |

## Agent readiness — 26.5 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | verified |
| 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

Paid — onboarding: unknown, pricing: paid, trial: no (confidence: medium).

## APIs (2)

- **Ninetailed Events API** — Batch event ingestion endpoints for profile enrichment.
- **Ninetailed Profiles API** — Operations for creating, reading, updating, and deleting visitor profiles.

## Agentic access (1)

- **Ninetailed Agentic Access** — 6 operations · 5 acting

## Security (3)

- **Ninetailed Domain Security** — TLSv1.3 · HSTS · DMARC
- **Ninetailed Vulnerability Disclosure** — security.txt · contact published
- **Ninetailed Trust Center** — SOC 2, ISO 27001

## Plans (1)

- **Ninetailed Plans Pricing**

## Tags

Personalization, Experimentation, A/B Testing, Audience Segmentation, Feature Flags, Headless CMS, Edge Computing, Content Management

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