Sent1nel
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Sent1nel
REAL TIME TRANSACTION MONITORING & FRAUD RISK ENGINE

Sent1nel
Engine.

Don't just look at the transaction. Evaluate the network around it, accounts, devices, counterparties, behavior, and payment flow, in real time.

v1.0 · Live in Production ↓ See it work
Our Clients
In Partnership With

SAVA

Sent1nel in partnership with SAVA to advance trustworthy financial infrastructure across emerging markets.

Visit SAVA →
01/Paradigm Shift
Before

Blind.

Legacy systems look at one transaction at a time. They evaluate a single sender and receiver in isolation.

Coordinated fraud activity, account abuse, velocity patterns, device overlap, and AML signals can slip past when each transaction is reviewed alone.

After

Structural.

We see the full transaction context. Account behavior, device overlap, payment velocity, counterparty patterns, and unusual flow paths.

Before funds clear, Sent1nel checks whether the payment fits the account, the device, the counterparty, and the behavior that came before it.

02/The API · v1.0 Live

Latency vs Depth.
Solved.

Stop high risk transactions in milliseconds. Review the full risk picture overnight. Both, without trade offs.

POST /v1/evaluate 22ms
// Sentinel response
{
  "id": "eval_9x8f7d",
  "status": "blocked",
  "risk_score": 98.5,
  "signals": [
    "linked_account_activity",
    "device_overlap_signal",
    "velocity_risk"
  ],
  "action_taken": true
}
03/Architecture
01 / Real Time

Real Time Decisions

Every payment is evaluated against fraud vectors, account behavior, device and session signals, counterparty activity, and previous transaction context before funds clear.

In real time
02 / Overnight

Forensic Review

Every flow is replayed overnight. Forensic models learn from historical behavior and feed better risk decisions back into the real time layer.

Refreshed every night
03 / One Stream

One Event Stream

One event stream captures every transaction and routes it to both real time decisioning and forensic review, without delay.

One source of truth
04/Topology
Visualizing the Invisible

What Sent1nel
assesses
in real time.

01

Account &
Counterparty Context

Understand who is transacting, how accounts relate, and whether the relationship fits previous behavior.

02

Payment Flow
Behavior

Detect unusual movement patterns, repeated transfers, rapid pass throughs, velocity changes, and unexpected payment paths.

03

Account Activity
Signals

Monitor account behavior, access patterns, transaction timing, locations, and available session or device signals.

05/Use Cases
Built For

Where Sent1nel
works.

  • 01 / Real Time Transaction Decisions

    Assess, approve, review, or block transactions before funds clear.

  • 02 / Fraud Vector Monitoring

    Detect linked account activity, device and session overlap, velocity risk, counterparty anomalies, and unusual payment paths.

  • 03 / Forensic Review & AML Support

    Replay events, explain risk decisions, support AML workflows, and give fraud, risk, operations, and compliance teams an auditable view of what happened.

Payment
Signals
Review
06/Conclusion

The transaction
is just a symptom.
The network
reveals the risk.

Stop chasing individual anomalies.

Sent1nel turns transaction context into real time risk decisions.

Sent1nel · The Network Reveals the Risk
Get Started

Deploy a
better shield.

Built for real time transaction monitoring, fraud risk assessment, AML support, and forensic review.

Sent1nel HQ Start Building →