Sequence-aware API

Simple API-first integration for sequence-aware scoring

The client sends transaction events, and Xavionis returns risk context, a decision, and explainable factors shaped by repeated activity and behavioral sequence context.

Discuss pilot integration Request diagnostics

What integration looks like

Xavionis does not require a full payment-architecture rebuild. At the start, the product is connected as a limited decision layer on top of the existing event flow.

First a minimal contour, then a controlled rollout.

Sample request

{
  "api_key": "client_xxx",
  "user_id": "user_repeat_42",
  "amount": 900,
  "currency": "RUB",
  "event_type": "renewal",
  "timestamp": "2026-03-16T21:12:19Z"
}

Sample response

{
  "risk_score": 83,
  "decision": "REVIEW",
  "factors": [
    "repeat_attempt_burst",
    "renewal_instability",
    "sequence_escalation"
  ]
}

What the system evaluates

Single event

Amount, event type, and event timing.

Repeated user-linked activity

Related actions grouped inside a short window.

Attempt density

Burst behavior, retry series, and accumulation.

Recurring context

renewal, subscribe, cancel, retry, and the transitions between them.

Decision history

Previous decisions inside the same sequence.

Explainable factors

Factors that can be used for reporting and review workflows.

Core endpoints

POST /score — evaluate a transaction in sequence context
GET /stats — client-level summary statistics
GET /recent — recent activity for operational review
GET /report — JSON report for review / reject / suspicious sequences
GET /report/view — HTML report for review and discussion
GET /report.csv — CSV export for further analysis

Integration without a heavy rebuild

Xavionis can be added as a limited contour on top of your existing decision logic. This makes it possible to validate sequence-aware usefulness without a full replatforming effort.

What to keep in mind

the product operates in a high-touch B2B model
self-serve is not the primary rollout mode
production rollout starts after a pilot stage
signal logic is calibrated to the real client environment
recurring / sequence context matters more than an isolated event score

Start with a technical conversation, then a limited contour

If you have a recurring environment, repeated attempts, review-heavy cases, and sequences that do not fit isolated-transaction logic, it makes more sense to start with a focused technical discussion and limited pilot integration.

Request a technical conversation Discuss pilot integration