The cutomer data platform for growing marketplaces. All from one SDK.
Unify buyer, seller, and listing data to power your CDP, seller analytics, personalization, lifecycle marketing, and marketplace ad engine without paying the marketplace data tax.
The customer data platform
trusted for 120M+ MTUs
Marketplace pulse
Last 24 hours · Real-time
Active buyers
83.1k
GMV
$247k
Listings ranked
42.8k
Seller portals
1.2k
Marketplace liquidity · last 20 days
One data layer for every marketplace surface
search_performed
buyer_219 · nature stays
seller_inventory_gap
seller_44 · weekend supply
checkout_started
$280 booking value
profile_merged
anonymous → buyer
Buyer LTV
$1,840
Preferred
Nature stays
Seller affinity
High
Next action
Weekend offer
Marketplace Pain PointsGeneric CDPs weren't built for two-sided journeys at marketplace volume. You need a real-time data layer that enables monetization growth in your platform.
Two-sided journeys break generic CDPs. Marketplaces need to understand buyers, sellers, listings, inventory, messages, payments, and liquidity in one connected model.
Volume turns growth stacks into tax. Every search, view, listing update, and checkout event compounds usage bills in tools priced for simpler SaaS and ecommerce funnels.
Sellers need their own product layer. The same data that powers marketing should also power seller dashboards, boosted visibility, and marketplace monetization loops.
Activation has to stay close to the data. Audiences, recommendations, lifecycle triggers, and embedded analytics work best when they run from the same real-time source of truth.
Marketplace Use CasesEverything you need to grow your marketplace at scale.
CORE CDPReplace Segment with a CDP that understands marketplace data.
Collect buyer, seller, listing, search, checkout, and lifecycle events into one warehouse-native profile layer. Then sync audiences and events to the tools your growth team already uses.
Explore Audience HubTrack web, mobile, and server-side events from one marketplace-ready SDK
Resolve identities across buyers, sellers, devices, and anonymous sessions
Send clean events and audiences to Meta, Braze, Customer.io, internal services, and more
// Identify your user across all platforms
await userflux.identify("user_123", {
email: "alice@example.com",
plan: "enterprise"
})
// Track any event in real-time
await userflux.track("product_viewed", {
productId: "prod_456",
category: "electronics",
price: 299.99
}, { enrichLocation: true })
Destinations
Syncing in real-time
Meta
Braze
Customer.io
Slack
Amplitude
SELLER ANALYTICSGive sellers visibility to help them grow their business.
Use the UserFlux Data API to power analytics inside your seller portal. Show sellers sales, conversion, demographics, traffic sources, and listing performance on the same data layer your team uses internally.
Explore AnalyticsServe customer-facing dashboards with low-latency Data API queries
Give sellers visibility into views, checkout funnels, sales, and source attribution
Turn analytics into a reason for sellers to list more, promote more, and stay longer
Nomad Stays
Seller performance
$247k
83.1k
22.1%
Checkout funnel
Views to purchase
Traffic sources
Buyer mix
Buyer DiscoveryPersonalize feeds, search results, and emails at marketplace scale.
Large catalogs need more than static search. UserFlux combines real-time behavior, catalog context, and conversion signals to rank listings, power recommendations, and drop personalized blocks into campaigns.
Explore PersonalizationRe-rank search results based on user behavior and marketplace context
Use Vibe, Blend, and Surge models for recommendations, discovery, and trending supply
Use the same personalization engine across product pages, feeds, and emails
John · Sydney
Buyer profile · updated 2s ago
Feed
Hidden valley escape
From $148 · 2 nights
Search
nature stays
Top result re-ranked ↑3
Picked for John →
Weekend cabins near you
LISTING ENRICHMENTTurn messy seller listings into structured marketplace data.
Automatically classify listings, extract attributes, write SEO-ready descriptions, and flag moderation issues so every listing becomes usable for search, recommendations, emails, and seller insights.
Explore PersonalizationAuto-categorize listings by category, location, condition, amenities, and supply type
Generate buyer-facing listing descriptions, SEO fields, and structured attributes
Autofill missing details, and flag risky content, before they hurt discovery
Marketplace listing AI fields
Prompt: classify each listing, extract attributes, generate SEO copy, and flag anything that needs moderation before it reaches buyers.
Hidden valley tiny stay
AI listing copy: Off-grid tiny home with valley views, fire pit, and weekend availability.
Vintage walnut dining table
AI listing copy: Six-seat walnut table with restoration notes, suburb pickup, and buyer-safe condition tags.
City warehouse event space
AI listing copy: Inner-city event space for launches, shoots, and private events with capacity and amenity tags.
LIFECYCLE COMMSRun buyer and seller journeys from live marketplace behavior.
Trigger campaigns from abandoned searches, incomplete bookings, seller onboarding, supply gaps, and reactivation moments. Every message can use live profile, listing, and catalog data.
Explore JourneysBuild buyer, seller, and supply-side journeys with visual branching
Trigger abandoned search, abandoned booking, seller activation, and winback campaigns
Use dynamic content and recommendation blocks in every email
Search performed
city = Austin, category = furniture
Buyer or seller?
Route each side through a different journey
Send personalized email
Recommended listings from live catalog data
MARKETPLACE AD ENGINELet sellers boost listings and create a new revenue stream.
Once recommendations, seller analytics, and ad spend run from the same system, sellers can boost visibility and measure results. That creates the marketplace flywheel generic platforms never unlock.
Talk to salesRank boosted listings with buyer intent, catalog fit, and seller goals
Show sellers performance and ROAS through embedded analytics
Use first-party data to improve promotion quality, marketplace revenue, and liquidity
Marketplace ad engine
Boosted seller visibility
$18.4k
94k
5.8x
Lower cost at scale
Usage-based pricing that fits marketplaces where every view, search, listing update, and checkout can become an event.
One source of truth
Your CDP, analytics, journeys, search, and embedded seller dashboards all operate from the same real-time data layer.
A flywheel you can expand into
Start with core CDP routing, then add personalization, seller analytics, lifecycle, and monetization when the timing is right.
Get started today with $150 credits
Create an account instantly to get started or contact us to design a custom package for your business.