Checkout Intelligence Layer

Z-ZERO Agent Knowledge Base

Our AI agent reads each checkout page in real-time, combining LLM-powered DOM analysis with a curated knowledge base of 20+ common payment patterns — stored in our cloud DB and served live to every agent call, with zero client restarts required.

20+

Patterns Handled

∞

No MCP Update Needed

0 chars

Card Data Exposed to AI

How It Works

01.

Agent calls get_merchant_hints(domain)— Queries our cloud Knowledge Base

02.

Brain returns pre_steps + CSS selectors— Domain-specific playbook from DB

03.

Agent passes hints → execute_payment()— Playwright uses hints as priority 1

04.

Playwright fills form & submits— Card data never leaves local RAM

Card numbers, CVV, and expiry are processed exclusively inside Playwright (local RAM). The AI agent only sees selectors and URLs — never any PAN or sensitive payment data.

20 Common Checkout Patterns We Handle

Merchant names are never listed. Categories reflect the underlying technical pattern.

ID	Category	Pattern	Status
P01	Standard	Single-page card form (W3C autocomplete)	✅
P02	Standard	Separate month/year dropdown selects	✅
P03	Standard	Hidden CVV field (revealed on focus)	✅
P04	Stripe	Stripe.js Unified Element (1 iframe)	✅
P05	Stripe	Stripe.js Split Elements (3 iframes)	✅
P06	Stripe	Stripe private frame (__privateStripeFrame*)	✅
P07	Multi-step	Card form behind payment-method accordion	✅
P08	Multi-step	Card form in modal/drawer (click to open)	✅
P09	Multi-step	Guest checkout (skip login tab first)	✅
P10	Platform	Shopify checkout (native card fields)	✅
P11	Platform	WooCommerce + Stripe plugin	✅
P12	Platform	SaaS subscription billing page	✅
P13	Platform	Digital goods single-page checkout	✅
P14	Security	Name-on-card required field	✅
P15	Security	Card branded icon auto-detection (VISA/MC)	✅
P16	UX	Submit button text: Pay / Place Order / Complete	✅
P17	UX	Aria-label only fields (accessibility-first forms)	✅
P18	UX	Placeholder-only field detection (case-insensitive)	✅
P19	Routing	Web3 / crypto payment page (USDC on Base)	✅
P20	Routing	EIP-681 merchant wallet detection	✅

New patterns are added automatically as our agents encounter and resolve new checkout scenarios. The knowledge base grows without requiring MCP updates.

Live Platform Playbooks

No approved hints in DB yet.

API: GET /api/checkout-hints?domain=etsy.com — authenticated via your Passport Key (Bearer).

Integrate in minutes

Read the Agent Setup Guide