Marketing Science Engine
Live

One question.
One call.
One answer.

135 statistical algorithms as a stateless HTTP API. Ask in plain English, get back structured analysis and a decision-ready verdict — in seconds. No team required. No waiting.

Get API Key View all 135 algorithms →
Live Demo — AI Agent Client 🔒 Not stored

Select a scenario

Data

Control: 1,200 conversions / 8,400 visitors
Variant: 1,380 conversions / 8,400 visitors

Your question

Result bayesian_ab_testing

Prob. Variant Wins

94.7%

↑ strong signal

Posterior Lift

+14.8%

Control CVR

14.3%

Variant CVR

16.4%

Confidence 94.7%

Verdict

Ship the variant.

At 94.7% posterior probability the evidence strongly favors the variant — expected incremental lift of +14.8%. Risk of regret if you don't ship: low.

Build on the API

This demo is one thing you can build on top of it.

The engine underneath is a stateless HTTP API with 135 algorithms. Call it directly from your agent framework, script, or pipeline. Get back structured JSON with a decision-ready verdict every time.

Get API access
// POST api.yourdatastories.com/v1/algorithm

"algorithm": "bayesian_ab_testing",
"question": "Should I ship the variant?",
"data": {
  "control": { "conversions": 1200, "visitors": 8400 },
  "variant": { "conversions": 1380, "visitors": 8400 }
},
"confidence": 0.95

// Response
"verdict": "Ship the variant.",
"prob_variant_wins": 0.947,
"lift": 0.148