The platform
One product. Three layers.
Heartly is built as three integrated layers — each with its own audience, its own surface, its own value. One subscription pays for all three. Merchants get tools. Shoppers get a discovery hub. AI agents get an API. Same data, three distribution channels.
Most flash-sale tools sell a feature. Heartly ships a platform: the tools to run the sale, the surface to distribute it, and the API for the agentic-commerce wave that is already here.
01 · The revenue engine
For DACH D2C brands on Shopify & WooCommerce
Merchant Tools.
The paid SaaS layer. This is what merchants log into. Flash sales, AI co-pilot, competitor radar, raffle drops, carousel campaigns — everything you need to run urgency-driven commerce without stitching three plugins together.
Flash sales on autopilot
The AI co-pilot reads your products, your sales history, your top five competitors' pricing every day. When the model is confident, it proposes a specific sale — products, window, discount — with predicted lift. You approve from your phone in two taps. Heartly handles price rules, countdown, stock cap, auto-revert.
Competitor Radar
Tracks your top five competitors. Alerts when they launch a sale, what products, how steep, for how long. You react before they undercut you — not three days later when your conversion drops.
Carousel campaigns & raffle drops
String 3–7 sales into a single campaign that auto-switches products on a schedule. Run gamified raffle drops to capture emails and build hype. Black Friday on autopilot.
PAngV & Omnibus compliance built in
Every sale auto-records the legally-required 30-day reference price for EU sellers under the Price Indication Directive. Storefront badges, structured data, admin reports — all compliance-aware by default. No fines, no manual workarounds.
30-day
Price audit trail
100%
Real countdowns
2 min
Signup to first live sale
02 · The discovery engine
For shoppers — free distribution included
Deals Hub.
The consumer surface. Every live flash sale across every Heartly merchant lands here — on the public web, in two native apps, and indexed for AI shopping crawlers. Free traffic for every merchant on every plan.
deals.heartly.io
Server-rendered, mobile-first, Schema.org Product + Offer JSON-LD on every deal. Indexed by Google, Bing, GPTBot, ClaudeBot, PerplexityBot, Google-Extended. The same data powering this Agent API powers the public web.
Native iOS & Android apps
Push notifications hit deal hunters within seconds of a sale going live. Curated feeds by category, country, and discount depth. Direct buy links route back to your Shopify or WooCommerce store — Heartly never owns the checkout, you do.
Built for AI shopping crawlers
Heartly was AEO-optimized before AEO was an acronym. Every deal page ships with the structured data AI agents quote when they synthesize shopping answers. When a shopper asks ChatGPT for “best gin deals this weekend”, Heartly merchants surface.
Free distribution. Every plan.
No extra fee. No setup. Every flash sale you launch through Heartly automatically appears on the Deals Hub and the apps, unless you explicitly opt out. Most merchants leave it on because the referral traffic is real.
03 · The agent surface
For AI agents — Model Context Protocol (MCP)
Agent API.
Built for the agentic-commerce era. A public, free, rate-limited MCP server that any AI agent — Claude Desktop, ChatGPT, Cursor, Perplexity, Gemini — can query for live deal inventory. Listed in the Official MCP Registry under io.heartly/deals.
Three read-only tools
list_active_deals,search_deals_by_category,get_deal_by_id. Each tool supports four filters: country (ISO 3166-1 alpha-2), category, minimum discount, and time-to-end.Streamable HTTP transport, stateless
Modern MCP spec, no session token, no authentication, no payment. Rate-limited at 60 requests per minute per IP. DNS rebinding protection, strict CORS, structured logging for KPI tracking.
Verified merchants only
Same hygiene gate as deals.heartly.io: active tenant, not suspended, not a development store, not password-protected, not feed-frozen, valid Shopify or WooCommerce credentials. The Agent API returns clean inventory or nothing.
Listed across the MCP ecosystem
mcp.so, Smithery, Glama, and the Official MCP Registry as
io.heartly/deals. The Official Registry feeds downstream directories like PulseMCP — one listing surfaces in many.
The connective tissue
One data pipeline. Three audiences.
The three layers are not three products bolted together. They are three surfaces over the same data pipeline. A merchant launches a flash sale once. The sale appears on their storefront, in the Deals Hub on the public web, in the iOS and Android apps, and as a queryable entry in the Agent API — same data, four channels, zero duplication.
The flywheel: more merchants on Heartly means a richer Deals Hub and Agent API, which means more discovery traffic and more AI citations, which makes Heartly more attractive to the next merchant. Each layer reinforces the others.
Merchant Tools
Generates the deals. Every active sale becomes a record other layers can surface.
Deals Hub
Distributes deals to humans. Public web plus two native apps, crawlable through stable public URLs.
Agent API
Makes read-only deal data available to compatible clients over MCP and is listed in the official MCP Registry.
The timing
Built for the agentic web.
Google introduced UCP in January 2026 as an open standard for agentic commerce and later documented catalog, cart, and checkout capabilities. The protocol can use REST or MCP bindings, giving merchants and platforms a shared technical language for eligible commerce journeys.
Availability still depends on the surface, country, merchant eligibility, and onboarding program. DACH merchants can prepare the durable foundations now — accurate product data, server-rendered Schema.org markup, and documented public endpoints — without assuming an unannounced rollout date.
Heartly was built for this separation of concerns. Merchant Tools create and approve the campaign data, the Deals Hub publishes eligible offers for people, and the Agent API exposes the same read-only records to compatible clients.
Readiness does not guarantee a recommendation. It removes avoidable technical gaps and creates a measurable path for future commerce surfaces.
Primary sources: Google UCP guide · official UCP specification
Common questions
Platform FAQ.
Do the three layers cost extra?
No. One subscription covers all three layers. Merchant Tools is the paid SaaS — Deals Hub and Agent API are included free with every plan. Both are also publicly accessible (deals.heartly.io for shoppers, mcp.heartly.io for AI agents) and require no merchant action beyond launching a flash sale.
Is the MCP server free for AI agents to use?
Yes. The Agent API at mcp.heartly.io is public, unauthenticated, and rate-limited at 60 requests per minute per IP. Any AI agent (Claude Desktop, ChatGPT, Cursor, Perplexity, Gemini) can connect with the URL alone — no API key, no signup, no billing. It is listed in the Official MCP Registry at io.heartly/deals.
Can I opt my store out of the Deals Hub?
You can. Every flash sale in Heartly has a "Public listing" toggle. Off by default for new accounts that opted out during onboarding, on by default otherwise. Distribution through the Deals Hub is included free with your subscription — most merchants leave it on because it generates referral traffic with zero work.
How is this different from a flash-sale plugin?
A flash-sale plugin runs sales. Heartly runs commerce. The AI co-pilot proposes specific sales with predicted lift before you ask. The competitor radar warns you before a rival undercuts you. The Deals Hub sends free traffic from shoppers and AI agents discovering your sale. The Agent API surfaces your sales inside ChatGPT, Claude, Perplexity. A plugin is a feature. Heartly is the platform.
Is this DACH-only?
No. The protocol layer is geo-agnostic — any Shopify or WooCommerce merchant, anywhere, can connect to Heartly and surface in all three layers. Most current merchants are in Germany, Austria, and Switzerland because that is where Heartly is built and marketed. The Agent API supports any ISO 3166-1 alpha-2 country code filter.
Will AI agents actually drive sales?
They can create a new discovery and checkout path, but no integration guarantees traffic or sales. Google now documents UCP catalog, cart, and checkout capabilities at platform level. Heartly makes current deal data technically accessible and measures referrals separately so merchants can evaluate real results.
PAngV and Omnibus compliance?
Heartly supports the EU reference-price workflow by recording the lowest 30-day pre-discount price and using it in storefront badges, structured data, and reports. Merchants remain responsible for their individual legal obligations; the product is not legal advice.
Last thing
All three. One subscription.
€29/month gets you all three layers. Merchant Tools as your day-to-day workspace, Deals Hub as free distribution, Agent API as your foothold in the agentic-commerce era. No add-ons.
Free plan · 2 min setup · Cancel anytime