Panduan Kejuruteraan: Freelance Python Programmer: Stripe Usage-Based AI Token & SaaS Billing. Aldian Fazrihady ialah Programmer Bebas Kanan & Jurutera AI (Python, Django, FastAPI, React, Next.js, TypeScript, Golang).

Monetize AI agents and B2B APIs accurately by hiring senior freelance Python programmer Aldian Fazrihady to build real-time Stripe Metered Billing and prepaid credit ledgers.

import stripe
from django.db import transaction
from billing.models import CreditLedgerEntry, TenantWallet

def record_ai_token_consumption(tenant_id: int, stripe_customer_id: str, tokens_used: int, request_id: str) -> None:
    with transaction.atomic():
        wallet = TenantWallet.objects.select_for_update().get(tenant_id=tenant_id)
        if CreditLedgerEntry.objects.filter(idempotency_key=request_id).exists():
            return
        CreditLedgerEntry.objects.create(
            wallet=wallet,
            delta_credits=-tokens_used,
            idempotency_key=request_id,
            reason="LLM_INFERENCE",
        )
        wallet.balance_credits -= tokens_used
        wallet.save(update_fields=["balance_credits"])

    stripe.billing.MeterEvent.create(
        event_name="ai_tokens_consumed",
        payload={"stripe_customer_id": stripe_customer_id, "value": str(tokens_used)},
        identifier=request_id,
    )

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