GHOSTRING

Find the fraud. Send the refund.

Starting…
Refunds through the PayPal REST API
Integrates the PayPal REST APIPayPal sandbox · test money
Review payments
Sandbox · REST API

PayPal is where a flag becomes money back

GhostRing recommends; you confirm. Before a refund, GhostRing checks PayPal's own record of the payment, and PayPal validates the refund request itself. Rows tagged "PayPal payment linked" are real sandbox payments.

  1. Customer paysCaptured in PayPal (sandbox)
  2. GhostRing scoresRisk index and evidence
  3. You confirmEvery refund needs a person
  4. PayPal checks, then refundsCapture checked, then refund issued
  5. Money returnedRefund ID shown in the app

Review queue

Payments ranked by fraud risk. Open one to see the evidence and, where a refund is warranted, send it through PayPal.

Flagged payments

Payment
Amount
Risk
Status
Loading payments…

Graph Ghost

Each payment is linked to the payments most similar to it. Your few confirmed frauds pass their label along those links, so unlabelled "ghost" payments acquire a risk score. Nothing is trained. The evidence for each flag is the confirmed fraud it most resembles.

  • Confirmed fraud
  • Known-good payment
  • Unlabelled payment, scored by its neighbours
Illustration of the method. Open any payment in the queue to see the confirmed frauds it most resembles.

From flag to refund in four steps

Every step is visible in the app, so you can see why a payment was flagged before any money moves.

1

Score

Graph Ghost links each payment to its nearest neighbours and propagates risk from your confirmed frauds along those links.

2

Explain

A language model drafts a short explanation and proposes refund, review or approve, using only facts the scorer produced.

3

Verify

Code rejects any number or ID the scorer did not produce, then enforces the refund policy. The model cannot override it.

4

Refund

PayPal REST API

You confirm; GhostRing checks the capture with PayPal and issues the refund. A captured payment can be fully refunded only once.

PayPal REST API (sandbox)Label propagation on a kNN graphFastAPIGeminiscikit-learn

Send this PayPal refund?