monetization

变现 - 从产品到收入

概述

数字产品变现的策略与实施 - Stripe、订阅、定价实验、免费增值、升级流程、流失预防、收入优化以及 SaaS 商业模式。在以下情况启用：集成 Stripe、创建订阅计划、定价策略、升级/降级、支付 webhook、免费试用、流失、LTV/CAC、单位经济模型、商业模式。

何时使用此技能

• 当你需要此领域的专业协助时

何时不要使用此技能

• 任务与变现无关
• 更简单、更具体的工具可以处理该请求
• 用户需要通用协助，无需领域专业知识

工作原理

价格是你付出的，价值是你得到的。- 沃伦·巴菲特 完美的变现能够获取与所交付价值成比例的价值。

---

黄金法则

用户在以下情况下付费：

1. 产品解决了真实问题（需求）
2. 解决方案优于替代方案（差异化）
3. 价格被感知为公平（价值感知）
4. 收费时机自然（时机）

经典错误

• 在展示价值之前收费（扼杀激活）
• 价格太低（暗示低质量）
• 计划太多（选择瘫痪）
• 无需信用卡的试用（低转化率）
• 隐形流失（没有即将取消的警报）

---

初始设置

pip install stripe

## Ou

npm install stripe

## Config.Py

import stripe
import os

stripe.api_key = os.environ["STRIPE_SECRET_KEY"]
STRIPE_WEBHOOK_SECRET = os.environ["STRIPE_WEBHOOK_SECRET"]

PLANS = {
    "free": None,
    "pro": os.environ["STRIPE_PRICE_PRO"],
    "business": os.environ["STRIPE_PRICE_BIZ"],
}

创建 Customer 和 Subscription

def create_customer(email: str, name: str, user_id: str) -> str:
    customer = stripe.Customer.create(
        email=email,
        name=name,
        metadata={"user_id": user_id}
    )
    return customer.id

def create_subscription(customer_id: str, price_id: str, trial_days: int = 14):
    subscription = stripe.Subscription.create(
        customer=customer_id,
        items=[{"price": price_id}],
        trial_period_days=trial_days,
        payment_behavior="default_incomplete",
        expand=["latest_invoice.payment_intent"],
    )
    return {
        "subscription_id": subscription.id,
        "client_secret": subscription.latest_invoice.payment_intent.client_secret,
        "status": subscription.status
    }

Checkout Session（推荐用于转化）

def create_checkout_session(
    customer_id: str,
    price_id: str,
    success_url: str,
    cancel_url: str,
    trial_days: int = 14
) -> str:
    session = stripe.checkout.Session.create(
        customer=customer_id,
        mode="subscription",
        line_items=[{"price": price_id, "quantity": 1}],
        subscription_data={"trial_period_days": trial_days},
        success_url=success_url + "?session_id={CHECKOUT_SESSION_ID}",
        cancel_url=cancel_url,
        allow_promotion_codes=True,
    )
    return session.url

Customer Portal（自助服务）

def create_portal_session(customer_id: str, return_url: str) -> str:
    session = stripe.billing_portal.Session.create(
        customer=customer_id,
        return_url=return_url,
    )
    return session.url

Webhook - 处理事件

from fastapi import Request, HTTPException
import 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 ValueError:
        raise HTTPException(status_code=400, detail="Invalid payload")
    except stripe.error.SignatureVerificationError:
        raise HTTPException(status_code=400, detail="Invalid signature")

    handlers = {
        "customer.subscription.created": handle_subscription_created,
        "customer.subscription.updated": handle_subscription_updated,
        "customer.subscription.deleted": handle_subscription_deleted,
        "invoice.payment_succeeded": handle_payment_succeeded,
        "invoice.payment_failed": handle_payment_failed,
        "customer.subscription.trial_will_end": handle_trial_ending,
    }

    handler = handlers.get(event["type"])
    if handler:
        await handler(event["data"]["object"])

    return {"status": "ok"}

验证 Subscription 状态

def get_subscription_status(customer_id: str) -> dict:
    subscriptions = stripe.Subscription.list(
        customer=customer_id,
        status="all",
        limit=1
    )
    if not subscriptions.data:
        return {"tier": "free", "status": "none"}

    sub = subscriptions.data[0]
    return {
        "tier": get_tier_from_price(sub.items.data[0].price.id),
        "status": sub.status,
        "trial_end": sub.trial_end,
        "current_period_end": sub.current_period_end,
        "cancel_at_period_end": sub.cancel_at_period_end,
    }

---

SaaS 定价框架

方法 1：基于价值的定价（推荐）

1. Calcule o valor economico entregue ao usuario
   Ex: produto economiza 2h/semana = R$ 200/mes de valor
2. Capture 10-30% do valor criado
   Ex: R$ 29/mes = 14% do valor
3. Valide com pesquisa de willingness-to-pay
4. Teste 3 price points (A/B test)

方法 2：竞争锚定

Referencia: ChatGPT Plus = $20/mes (R$ 100)
Anchor: Notion = R$ 32/mes
Posicao: Pro = R$ 29/mes (mais barato que ChatGPT, similar ao Notion)
Mensagem: Tudo que o ChatGPT faz, por voz no Alexa

定价心理学

R$ 29/mes (nao R$ 30 - efeito do digito esquerdo)
Plano anual com desconto claro: R$ 249/ano (economize R$ 99)
Destaque no plano que voce quer vender (visual hierarchy)
Ancoragem: mostra o plano caro primeiro
Trial sem cartao para ativacao, com cartao para retencao
Badge Mais popular no plano middle

计划结构（3 是正确的数字）

Feature	Free	Pro	Business
价格	免费	R$ 29/月	R$ 99/月
每月对话数	50	无限	无限
记忆	7 天	1 年	永久
专家看板	否	是	是
多用户	否	否	最多 10
API 访问	否	否	是
支持	否	邮件	优先

---

即将流失的信号

CHURN_SIGNALS = {
    "high_risk": [
        "nao logou nos ultimos 14 dias",
        "uso caiu >70% em 2 semanas",
        "abriu cancelamento mas nao concluiu",
        "ticket de suporte aberto sem resolucao",
    ],
    "medium_risk": [
        "nao logou em 7 dias",
        "uso caiu >40%",
        "nao completou onboarding",
        "nunca usou feature core",
    ]
}

反流失序列

Dia 0:  Usuario nao usa por 7 dias
        -> Email: Sentimos sua falta. O que aconteceu?

Dia 3:  Sem resposta
        -> Push/Email: case study de usuario similar com sucesso

Dia 7:  Nao voltou
        -> Email: oferta especial (20% off por 3 meses)

Dia 14: Trial expirando
        -> In-app modal + email urgente: Sua conta vai dormir em 3 dias

Dia 30: Cancelou
        -> Offboarding email: Lamentamos ver voce ir.
        -> 3 meses depois: reativacao com novidades

退出调查（必填）

CANCELLATION_REASONS = [
    "Muito caro",
    "Nao uso o suficiente",
    "Falta funcionalidade X",
    "Encontrei alternativa melhor",
    "Problemas tecnicos",
    "Outro"
]

## Falta Feature -> Roadmap + Notificacao Quando Lancar

---

核心计算

def calculate_unit_economics(
    mrr: float,
    customers: int,
    new_customers: int,
    churned: int,
    cac_total: float,
):
    arpu = mrr / customers
    churn_rate = churned / customers
    ltv = arpu / churn_rate
    cac = cac_total / new_customers
    ltv_cac = ltv / cac
    months_to_recover_cac = cac / arpu

    return {
        "ARPU": f"R$ {arpu:.2f}",
        "Churn Rate": f"{churn_rate*100:.1f}%",
        "LTV": f"R$ {ltv:.0f}",
        "CAC": f"R$ {cac:.0f}",
        "LTV/CAC": f"{ltv_cac:.1f}x",
        "Payback": f"{months_to_recover_cac:.1f} meses",
        "Status": "Saudavel" if ltv_cac > 3 else "Otimizar"
    }

巴西 SaaS B2C 基准

指标	差	一般	好	优秀
月度流失率	>7%	5-7%	2-5%	<2%
LTV/CAC	<1x	1-3x	3-5x	>5x
回收期	>18m	12-18m	6-12m	<6m
试用->付费转化率	<3%	3-8%	8-15%	>15%
月环比增长	<5%	5-10%	10-20%	>20%

---

收入仪表盘（每日指标）

MRR atual: R$ XX.XXX
  New MRR (novos assinantes): +R$ X.XXX
  Expansion MRR (upgrades): +R$ XXX
  Contraction MRR (downgrades): -R$ XXX
  Churned MRR (cancelamentos): -R$ XXX
  Net New MRR: +/- R$ XXX

ARR (Annualized): R$ XX.XXX x 12
Churn Rate: X.X%
Net Revenue Retention: XXX% (meta: >100%)

使用 Stripe 实现收入自动化

async def check_usage_and_upsell(user_id: str, usage: dict):
    if usage["conversations_this_month"] >= 45:
        await send_upgrade_prompt(
            user_id=user_id,
            message="Voce esta usando 90% do seu limite. Faca upgrade para Pro.",
            cta_url=f"/upgrade?utm=usage-limit"
        )

---

7. 快速命令

命令	操作
/stripe-setup	从零配置 Stripe
/pricing-analysis	分析当前定价策略
/churn-playbook	个性化的反流失序列
/unit-economics	计算 LTV/CAC 和财务健康状况
/upgrade-flow	升级流程设计
/revenue-dashboard	收入仪表盘模板
/trial-optimization	优化试用转化率

最佳实践

• 提供关于你的项目和需求的清晰、具体的上下文
• 在将建议应用于生产代码之前，先审查所有建议
• 与其他互补技能结合使用，以获得全面分析

常见陷阱

• 将此技能用于其专业领域之外的任务
• 在不了解自身具体上下文的情况下直接应用建议
• 未提供足够的项目上下文，导致分析不准确

相关技能

• analytics-product - 用于增强分析的互补技能
• growth-engine - 用于增强分析的互补技能
• product-design - 用于增强分析的互补技能
• product-inventor - 用于增强分析的互补技能

限制

• 仅当任务与上述范围明确匹配时，才使用此技能。
• 不要将输出视为特定环境验证、测试或专家审查的替代品。
• 如果缺少必需的输入、权限、安全边界或成功标准，请停止并寻求澄清。