# Yieldify *

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

Yieldify is a website personalization and conversion rate optimization (CRO) platform for ecommerce brands, founded in 2013 in London by Jay Radia and backed by investors including GV (Google Ventures). Its SaaS platform delivers targeted on-site messaging, customer-journey personalization, and A/B testing to lift conversion and revenue. Yieldify was acquired by Publicis Groupe in January 2023 and folded into Epsilon, where it is now sold as Epsilon Accelerate; yieldify.com redirects to the Epsilon Accelerate product page and the legal entity behind the platform is Zeus Enterprise Ltd, trading as Yieldify. Delivery is entirely client-side: a customer-specific JavaScript tag placed before the closing head tag (directly, or via Google Tag Manager, Tealium, Shopify theme.liquid or Recharge checkout) renders a documented library of on-site experience components — overlays, notifications, banners, sticky and embedded experiences, toasters, carousels, countdown timers, lead-capture forms — configured from the Yieldify Conversion Platform at convert.yieldify.com, with a typed dynamic-expression language for personalized copy and client-side yieldify_impression/click/close/form_submit events pushed into the customer's own GA4 property. There is no public developer API: probing every Yieldify host on 2026-08-13 found no OpenAPI, GraphQL, MCP, A2A card, webhooks, SDK, CLI or developer portal, the status page at status.yieldify.com has been deactivated, and no pricing is published anywhere.

## Kin Score — 16.5 / 100 (emerging)

Scored 2026-08-17 under rubric 0.11.0. Trend: rising (+10.6 from 5.9).

| Facet | Score |
|---|---|
| Discoverability | 68.5 |
| Contract Quality | 0.0 |
| Governance | 12.5 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 6.5 |
| Commercial Clarity | 34.2 |

## Agent readiness — 0.0 (human-only)

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

## Access

Enterprise sales only — onboarding: unknown, pricing: unknown, trial: no (confidence: high).

## Security (1)

- **Yieldify Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Yieldify Plans Pricing**

## Tags

Company, Enterprise, Personalization, Conversion Rate Optimization, Ecommerce, Marketing Technology, Customer Experience, A/B Testing, Tag Management, Lead Capture, Website Optimization

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