---
title: "B2B Payment Fraud Detection Heuristics Builder"
method: POST
path: "/v1/tools/b2b_payment_fraud_detector"
---

# B2B Payment Fraud Detection Heuristics Builder

`POST /v1/tools/b2b_payment_fraud_detector`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/b2b_payment_fraud_detector`
- Auth: none declared

Configure fraud detection heuristics for B2B payment fraud: BEC, invoice manipulation, supplier impersonation, and change-of-bank-details fraud. Outputs rule pseudocode, detection checklist, and operational controls. Client-side. Works offline. Zero PII.

**Tool URL:** https://ainumbers.co/tools/140-b2b-payment-fraud-detector.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `orgSize` string
  - `apSpend` string
  - `threshold` string
  - `chk_bec` string
  - `chk_invoice` string
  - `chk_supplier` string
  - `chk_bankchange` string
  - `varPct` string
  - `waitDays` string

## Response `200`

Successful tool execution result

- object

---

[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)