New integrations: Amplitude, OpenAI Ads, StackAdapt
Amplitude product analytics events, OpenAI Ads spend, and StackAdapt programmatic spend now flow into SegmentStream for cross-channel attribution, incrementality, and budget optimization.
Pavel PetrinichFounder, SegmentStream
|September 15, 2026|3 min readThree new data sources are live in SegmentStream. One brings product analytics events into marketing measurement. Two add ad spend from channels that were missing from the mix.
Amplitude x SegmentStream
Amplitude is one of the leading product analytics platforms for startups and enterprises alike, used by over 4,900 companies and 26% of the Fortune 100. Teams on Amplitude already track the behavioural events behind adoption, retention, cohorts, and the rest of the product picture.
Marketing measurement is a different scope. Which channels bring the users who adopt and retain, and what each one truly adds: behavioural events alone cannot answer that. It takes ad cost, CRM outcomes, an identity graph, and models that turn all of it into a budget decision.
That is what SegmentStream does: advanced marketing measurement on top of the raw events Amplitude already exports to your warehouse. It adds cost from 30+ ad platforms and outcomes from your CRM, then turns all three into cross-channel attribution, incrementality and marginal ROAS, and budget recommendations you can push straight to the platforms.
Product analytics stays in Amplitude. Marketing measurement and optimization run in SegmentStream: where the next dollar should go, and how to prove it worked.
New data source: OpenAI Ads
Campaign spend from OpenAI Ads now flows into SegmentStream automatically, alongside Google, Meta, TikTok and every other channel you run.
Ads on ChatGPT surfaces are a new line item in a lot of budgets, and most teams read that performance in isolation, inside OpenAI's Ads Manager, against OpenAI's own numbers. That says nothing about how the channel behaves next to the rest of the mix.
What you can do:
- See OpenAI Ads spend and delivery next to every other channel in one report
- Run attribution across the full mix with OpenAI Ads included, not estimated
- Let portfolio optimization move budget on real numbers
Generate an API key in Ads Manager → Settings, add the data source in SegmentStream, paste the token, pick your ad account. Data lands within an hour.
New data source: StackAdapt
You can now load your StackAdapt campaign spend and delivery metrics into SegmentStream for attribution reporting and marketing mix portfolio optimization.
To start, generate a read-only API token in StackAdapt. In SegmentStream, add a new StackAdapt data source, paste the token, select the advertiser you want to sync, and click Save.
UTM parameters are parsed from each ad's click URL, so spend joins to your session data on utm_source, utm_medium and utm_campaign. No landing page template changes needed.
All three are available now under Data Sources. Browse the full list at segmentstream.com/integrations.
Pavel
Founder, SegmentStream