SignalForge: Real-Time Financial Fraud Detection API

Overview

SignalForge is a deployable fraud-detection API built from a Random Forest classifier trained on the PaySim financial transaction dataset.

Features

• Fraud classification using Random Forest
• Probability-based fraud scoring
• FastAPI REST API with Swagger UI
• Simple JSON request payload

Dataset

PaySim Financial Transaction Dataset

Model

• Algorithm: Random Forest Classifier
• Accuracy: 97.49%
• ROC-AUC: 99.79%

Run

pip install -r requirements.txt
uvicorn app:app --reload --port 8001

Open:

http://127.0.0.1:8001/docs

Example Request

curl -X POST "http://127.0.0.1:8001/predict" \
  -H "Content-Type: application/json" \
  -d @sample_request.json