---
title: "Payment Fraud Investigation Decision Lab"
method: POST
path: "/v1/tools/investigate_payment_fraud"
tags: ["fraud", "AML", "SAR", "NACHA", "BSA", "investigation", "chargeback"]
---

# Payment Fraud Investigation Decision Lab

`POST /v1/tools/investigate_payment_fraud`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/investigate_payment_fraud`
- Auth: none declared

Five-stage fraud investigation workflow: Intake & Validation → Entity Intelligence → Risk Scoring → Compliance Mapping → Resolution & Reporting. Outputs fraud score, AML rules, EBA typology, SAR narrative, and AP2 investigation mandate.

**Tool URL:** https://ainumbers.co/tools/80-fraud-investigation-lab.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `fileType` string, required
  - `amount` number, required
  - `jurisdiction` string

## Response `200`

Successful tool execution result

- object
  - `investigationId` string
  - `fraudScore` number
  - `riskBand` string
  - `sarRequired` boolean
  - `chargebackPackageReady` boolean
  - `sarNarrativeDraft` string

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)