Generate a button that you can press to get points.

#include "Particle.h"
#include "Adafruit_SSD1306.h"
#include "Adafruit_GFX.h"

int button = D6;
const int buttonPin = D7;
const int ledPin = D4;

int counter = 0;

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Particle.function("score",score);
  Serial.begin(115200);
}

void loop() {
  // put your main code here, to run repeatedly:

}

int score(String args){
  int buttonState = digitalRead(buttonPin);
  int score = 0;

  if (buttonState == LOW) {
    digitalWrite(ledPin, HIGH);
    score = score + 1;
    return score;
  }
  else {
    digitalWrite(ledPin, LOW);
  }
}