the AI agent that supports, recovers carts and sells for your ecommerce.

An AI agent for ecommerce isn't a chatbot with a decision tree — it's conversational commerce: a system that reads a customer's message, checks real data (catalog, stock, order status, cart contents) through connected tools, and replies in natural language, in the channel the customer already opened. Steff is trained on your tone, your catalog and your policies, and answers within a knowledge base you control.

Because it's built for omnichannel from the ground up, the same agent — and the same conversation history — follows the customer whether they write on WhatsApp, Instagram DM, Facebook Messenger or email.

This is the category taking shape as commerce AI: not one more tool in the stack, but an AI employee for your store that handles support, sells, and follows up with full context on your catalog. If you want to place the terms, see what is an AI employee.

Customer support and AI customer support usually get built as a separate project from sales automation, and cart recovery ends up bolted on as email blasts. heysteff treats them as one job: the agent that answers "where's my order?" is the same one that recommends a product with real stock data, and the same one that reaches out when a cart gets abandoned — using the channel the customer already used to talk to you, not a generic marketing email.

Human agents can step in on any conversation in one click through copilot mode, and escalation rules make sure anything sensitive — a complaint, a refund, a legal question — reaches a person automatically.

heysteff ships with native integrations for Shopify, WooCommerce and TiendaNube, covering catalog, stock and checkout so the agent recommends real products and can generate a checkout link inside the chat instead of sending a customer away to browse. For anything else — a custom ERP, HubSpot, Defontana, or an internal system — a tool builder connects heysteff to any HTTP API or webhook, so integration doesn't stall on a missing native connector.

The numbers heysteff publishes and stands behind: an average 4.2x lift in abandoned cart recovery when the agent reaches out through the customer's own messaging channel instead of a generic email; 87% of conversations resolved without a human touching them; first response under 9 seconds; and coverage 24/7, since the agent doesn't clock out. Those figures come from actual recovery and resolution flows, not from a marketing benchmark.

Pricing is per resolved conversation, not per seat or per message — a "conversation" is one customer served within 24 hours, on any channel. There's a Free plan (50 conversations/month, 1 channel, no card required) to test it for real. Paid plans start at Starter (149 USD/month: 500 conversations, 2 channels, 3 users, 1 calendar), Pro (299 USD/month, the most popular: 3,000 conversations, 4 channels, 1 Shopify store with cart recovery, unlimited campaigns), up to Max (549 USD/month: 5,000 conversations, unlimited channels, 3 Shopify stores). No setup fee, 20% off on annual billing.

• heysteff home (English) — the full product overview.
• heysteff Reviews — conversational review requests for Shopify stores, over WhatsApp and email.
• IA para ecommerce (Spanish) — the same pillar page for Spanish-speaking teams.
• AI agent for Shopify — deep dive on the Shopify integration.