Meteor 1.3 code to expose a server method which leverages Futures enabling a synchronous call to the Stripe API, creates a new "Customer" and returns a response once the request has completed.

meteor-1.3-synchronous-server-method.js

import { Meteor } from 'meteor/meteor';
import { Stripe } from 'meteor/mrgalaxy:stripe';
import Future from 'fibers/future';

Meteor.methods({

  stripeCreateCustomer(token, email) {

    const stripeCustomer = new Future();

    check(token, String);
    check(email, String);

    Stripe.customers.create({
      source: token,
      email
    }, (error, customer) => {
      if (error) {
        stripeCustomer.return(error);
      } else {
        stripeCustomer.return(customer);
      }
    });

    return stripeCustomer.wait();

  }
});