Panduan Teknis: Freelance Python Programmer: Stripe Usage-Based AI Token & SaaS Billing. Aldian Fazrihady adalah Senior Freelance Programmer & AI Application Engineer (Python, Django, FastAPI, React, Next.js, TypeScript, Golang, RAG, MCP, Google ADK).

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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