Stripe vs PayPal: Choosing the Right Gateway for Dev SaaS

Your SaaS billing system is the most critical pipeline of your business. Let's compare Stripe and PayPal across API design, developer tooling, and global conversions.

API Ergonomics & Developer Experience

Stripe has long been the gold standard for developer documentation. Its webhook architecture is completely reliable and easy to signature-verify.

# Verifying secure Stripe webhooks in Python
import stripe
from fastapi import Request, HTTPException

@app.post("/webhooks/stripe")
async def stripe_webhook(request: Request):
    payload = await request.body()
    sig_header = request.headers.get("Stripe-Signature")
    try:
        event = stripe.Webhook.construct_event(
            payload, sig_header, STRIPE_WEBHOOK_SECRET
        )
    except Exception as e:
        raise HTTPException(status_code=400, detail="Invalid Signature")
    return {"status": "success"}

Key Takeaways

• Stripe: Best for flexible subscription tiers, metered developer usage billing, and customer portals.
• PayPal: Essential as an alternative payment choice for international users without major credit cards.