The infrastructure for
AI-powered commerce
CheckoutNow sits between your store and every AI agent on the internet. Built on ACP and UCP — one integration, infinite reach.
System Architecture
An intelligence layer that normalizes, indexes, and serves your catalog through intelligent AI agents.
Your Store
Intelligence Layer
AI Agent
Intelligence Layer
SQLite
Primary relational store for structured product data.
ChromaDB
Vector store for semantic product search.
Product Normalizer
LLM-powered enrichment pipeline that generates semantic descriptions and metadata.
DeepInfra MiniMax M2.5Agent Service
Python / FastAPILangGraph Agent
Stateful multi-turn conversation engine with session checkpoints. Routes user intent to the appropriate tool chain.
Claude Sonnet 4.6
Primary reasoning LLM via Anthropic API. Handles natural language understanding, product recommendations, and checkout flow logic.
LangChain Tools
search_products
Vector + SQL + Rank
get_product_details
Full product info
add_to_cart
Cart management
initiate_checkout
Payment flow
Ranking Engine
Every product result is scored through a weighted multi-signal algorithm. The engine combines business objectives (margin, SEO visibility) with real-time market signals (discounts, trending popularity) and temporal freshness — then personalizes the final ranking based on each user's browsing and purchase history.
SEO Visibility
× 0.25
Active Discount
× 0.20
Profit Margin
× 0.20
Popularity
× 0.20
Recency
× 0.15
+ User Prefs
dynamic
Final score = weighted sum of all signals, personalized per-user session context.
Protocol Support
Standards-FirstNative integration with emerging agentic commerce standards, ensuring your store is discoverable and transactable by any compliant AI agent.
Agentic Commerce Protocol (ACP)
by OpenAI · Agent-to-Commerce Standard
Defines how AI agents discover merchants, browse catalogs, manage carts, and complete purchases autonomously — with structured intent, tool schemas, and payment handoff.
Universal Commerce Protocol (UCP)
by Google · Cross-Platform Interoperability
A universal schema for product catalogs, pricing, inventory, and fulfillment — enabling seamless data exchange between any commerce platform and any AI system.
External APIs
Groq Cloud
gpt-oss-120b JSON extraction
DeepInfra
Embeddings + enrichment
Anthropic
Claude Sonnet reasoning
Firecrawl
Bot-bypass scraping
Shopify
Store product APIs
Data Flow
Store connects — product catalog syncs to SQLite and gets normalized with LLM enrichment
Intelligence Layer generates semantic embeddings and indexes products in ChromaDB for vector search
User chats — LangGraph routes intent — Tools: vector search + SQL rank — Claude replies
Cart actions returned as structured JSON payloads to the frontend for rendering
Everything you need
A complete platform to power conversational commerce at any scale.
Universal Agent Gateway
A single API endpoint built on the Agentic Commerce Protocol (ACP) and Universal Commerce Protocol (UCP) — enabling any AI agent to discover, search, and transact with your store.
Real-Time Catalog Sync
Inventory, pricing, variants, and availability stay perfectly in sync. Changes in your store propagate to every connected agent within seconds.
In-Chat Checkout
Customers complete purchases without leaving the conversation. Secure, PCI-compliant payment processing built directly into the agent flow.
Conversational Analytics
Track every agent interaction, conversion funnel, and revenue attribution. Understand how AI drives your sales in granular detail.
Product Intelligence
Our semantic engine enriches your catalog with contextual metadata, enabling agents to make nuanced product recommendations.
Webhook & Event System
Subscribe to real-time events — new orders, cart updates, agent queries — and pipe them into your existing workflows and tools.
Works with your stack
Connect any storefront in minutes. More integrations shipping every month.
Ready to get started?
Join 500+ brands already selling through AI agents.