The marketing measurement engine
for teams|
Any question about your ads. Any report. Any recommendation.
From your AI — not next week's meeting.
Trusted by marketing teams at

Your AI tools. Our measurement brain.
Which channels actually work, where to move budget, what to test next — your AI answers it all. One config line to connect.
Connect your ad accounts & BigQuery
Google, Meta, TikTok, LinkedIn, and 26 more. Your data stays in your warehouse.
Add SegmentStream MCP to your AI tool
One config line in Claude Code, Claude Cowork, Cursor, or any MCP client.
Start working
Analysis, optimization, measurement — all through conversation with your AI.
Ask anything. Get analyst-grade answers.
Attribution reports, budget plans, root cause investigations — these are just the starting point. Your AI builds any analysis from SegmentStream’s measurement tools and shares it in one link.
Campaign Performance Report
Cross-channel performance with attribution-adjusted ROAS, anomaly flags, and week-over-week trends.
Root Cause Analysis
Automated investigation of metric anomalies — root cause identification with actionable recommendations.
Budget Reallocation Plan
Current vs proposed allocation with marginal ROAS analysis, projected revenue impact, and channel-level reasoning.
Month-over-Month Analysis
Automated period comparison with trend charts, statistical significance flags, and channel-level drill-down.
Build your own
Use built-in skills or create your own. Build custom reports, dashboards, and visualizations — then share them with your team or clients in one link.
Your data. Your infrastructure.
The only stack you need for the most sophisticated modern marketing measurement and optimization, fully customizable for your team.
Data Warehouse
All marketing data stays in your BigQuery warehouse. Full ownership, full SQL access.
MCP Server
Marketing attribution, budget optimization, and incrementality testing — exposed as MCP tools.
Agent Teams
Your AI agents call measurement tools directly. Claude Code, Claude Cowork, Cursor, or any MCP-compatible client.
Built-in measurement expertise.
Each skill encodes domain knowledge from hundreds of client engagements. Your AI reasons about marketing measurement the way a senior specialist would.
Analysis
- Performance review
- Baseline demand analysis
- Anomaly detection
Optimization
- Budget allocation
- Bid strategy evaluation
- Marginal ROAS analysis
Setup
- Project setup
- Conversion tracking
- Data source configuration
Debugging
- Unattributed investigation
- SDK pipeline diagnosis
- Data quality audit
Built on a production measurement engine
Powered by the same measurement engine that manages $100M+ in annual ad spend for enterprise teams. ML attribution models, incrementality testing, and budget optimization — built over years, now accessible through Claude Code, Claude Cowork, Cursor, and any MCP-compatible tool.
$100M+
ad spend managed
30+
ad platform integrations
13
measurement engine capabilities
Apply for research preview.
If your team already uses AI to get work done, this is the marketing measurement and optimization infrastructure you’ve been missing.