# Clerk.io

**Canonical:** https://apis.io/providers/clerk-io/  
**Website:** https://www.clerk.io/  
**APIs profiled:** 2

Clerk.io is an e-commerce personalization platform that uses artificial intelligence and machine learning to deliver tailored product recommendations, on-site search results, audience-segmented email campaigns, and merchandising controls for online retailers. The platform exposes a REST API for product, category, order, and customer data ingestion, plus client-side JavaScript and Liquid templating for recommendation slots and search experiences.

## Kin Score — 60.3 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 60.3).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 62.2 |
| Governance | 62.1 |
| Contract Governance | 62.1 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 47.0 |
| Commercial Clarity | 100.0 |
| Access Clarity | 100.0 |

## Agent readiness — 41.5 (agent-ready)

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

## Access

Usage-Based — onboarding: unknown, pricing: unknown, trial: yes (confidence: high).

## APIs (2)

- **Clerk.io API** — The Clerk.io API provides REST endpoints for managing products, categories, orders, customers, recommendations, and search. The API uses a dual-key authentication model: a publi...
- **Clerk.js Client Library** — Clerk.js is the browser-side JavaScript library for embedding Clerk.io recommendation slots, search, and email opens on a storefront, with Liquid templating support and event tr...

## MCP servers (1)

- **Clerk.io MCP Server**

## Security (3)

- **Clerk Io Authentication** — apiKey · 3 schemes
- **Clerk Io Domain Security** — TLSv1.3 · HSTS · DMARC
- **Clerk Io Trust Center** — SOC 2, ISO 27001, GDPR

## Plans (1)

- **Clerk Io Plans Pricing**

## Tags

Artificial Intelligence, Commerce, E-Commerce, Email Marketing, Personalization, Recommendations, Search

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