X Openai Stripe Best Practices A8050ef

---
name: x-openai-stripe-best-practices-a8050ef
description: Guides Stripe integration decisions across API selection (Checkout Sessions vs PaymentIntents), Connect platform setup (Accounts v2, controller properties), billing/subscriptions, tax and registrations (Stripe Tax, automatic_tax, product tax codes), Treasury financial accounts, integration options (Checkout, Payment Element), migrating from deprecated Stripe APIs, and security best practices (API key management, restricted keys, webhooks, OAuth). Use when building, modifying, or reviewing any Stripe integration, including accepting payments, building marketplaces, integrating Stripe, processing payments, setting up subscriptions, collecting sales tax, VAT, or GST, creating connected accounts, or implementing secure key handling.
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### 导出副本边界与技能别名

迁移、安装、修复和经验回写只作用于当前加载的目标宿主技能副本。原 Codex 技能/MCP、下载的源码和 `original-skills` 均为来源材料，不因执行本副本而写入；只有用户另行明确要求配置 Codex 产品本身时，才按该产品流程处理指定目标。脚本需要安装目录或状态目录时，显式提供目标路径；不得从 `CODEX_HOME` 隐式推断写入位置。

跨技能名称可能沿用源库别名。先查 [技能别名表](../../skill-aliases.json)，优先选择同来源、同插件的条目，再使用其 `id` 调用或读取对应入口；不得假定旧 `$skill`、`superpowers:skill` 名称在新宿主直接注册。不能确定目标时先核对，不替换真实产品命令或 Shell 环境变量。

## 跨宿主使用约定

本副本供支持 Agent Skills 的客户端使用。先检查当前宿主实际提供的工具、权限和已连接服务，再执行正文工作流。原文中的宿主工具标识是能力参考；只有实际发现该工具时才可调用，其他宿主应使用经核验的等价 MCP、CLI 或 API。没有等价能力的步骤必须报告不可用，不能虚构调用或完成状态。

技能资源以本技能目录为基准；输出写入当前项目中用户指定的位置。通过技能名称或自然语言触发，具体快捷命令由宿主决定。涉及真实产品、模型 API、协议字段和官方网址的名称保持原意。授权、审批、隐私和工具范围限制在迁移后仍然有效；不得为兼容而扩大权限。具体依赖与迁移说明见同目录 `PORTABILITY.md`。

Latest Stripe API version: **2026-07-29.dahlia**. Always use the latest API version and SDK unless the user specifies otherwise.

Latest SDK versions:

| Language | Latest version |
| --- | --- |
| Ruby | 19.4.0 |
| Python | 15.4.0 |
| Node.js | 22.4.0 |
| PHP | 21.1.0 |
| Java | 33.2.0 |
| Go | 86.2.0 |
| .NET | 52.2.0 |

If you don’t have a Stripe account, you can call a CLI command to generate working API keys with no registration required. You can install the Stripe CLI (`npm i -g @stripe/cli`) and run the command `stripe sandbox create` to get started.

If `stripe sandbox create` is used, don’t use MCP.

If you try to use MCP after running sandbox creation, first make sure `stripe sandbox claim` is run. Use `stripe whoami --format json` for CLI auth checks; do not run `stripe config --list`.

API key default: Always recommend a [restricted API key (RAK)](https://docs.stripe.com/keys/restricted-api-keys.md) (`rk_` prefix) over a secret key (`sk_` prefix).

## Integration routing

| Building… | Recommended API | Details |
| --- | --- | --- |
| One-time payments | Checkout Sessions | <references/payments.md> |
| Custom payment form with embedded UI | Checkout Sessions + Payment Element | <references/payments.md> |
| Saving a payment method for later | Setup Intents | <references/payments.md> |
| Connect platform or marketplace | Accounts v2 (`/v2/core/accounts`) | <references/connect.md> |
| Usage-based billing (new integration) | Metronome | <references/billing.md> |
| Subscriptions or recurring billing | Billing APIs + Checkout Sessions | <references/billing.md> |
| Sales tax, VAT, or GST compliance | Stripe Tax + Registrations API | <references/tax.md> |
| Embedded financial accounts / banking | v2 Financial Accounts | <references/treasury.md> |
| Security (key management, RAKs, webhooks, OAuth, 2FA, Connect liability) | See security reference | <references/security.md> |

Read the relevant reference file before answering any integration question or writing code.

## Critical rules

- *Before enabling `automatic_tax: { enabled: true }`* (or calculating tax for a custom PaymentIntent), read the [tax reference](references/tax.md) and confirm the user has an active registration. Without one, Stripe calculates and collects no tax while the user believes tax is on (the most common Stripe Tax mistake).

- *Never include `payment_method_types` in any Stripe API call*, with one exception: Terminal (in-person payments) integrations must pass `payment_method_types: ['card_present']` on the PaymentIntent. For all other integrations, omit this parameter entirely to enable dynamic payment methods, which enables you to configure payment method settings from the Dashboard and dynamically display the most relevant eligible payment methods to each customer to maximize conversion. To customize which payment methods you accept, use [`payment_method_configurations`](https://docs.stripe.com/payments/payment-method-configurations.md) or `excluded_payment_method_types` instead of `payment_method_types`.

- On API version `2026-03-25.dahlia` or later, pass the parameter `integration_identifier` to `checkout.sessions.create` to tag sessions with a custom label for tracking and comparing checkout flows in the Dashboard. The label should include a suffix of 8 random letters.

- *Always instantiate a `StripeClient` and call methods on that instance.* Do **not** use the deprecated global/module-level API key pattern (`stripe.api_key = …`, `Stripe.setApiKey`, `stripe.Key = …`, `StripeConfiguration.ApiKey = …`). The global pattern is deprecated in all current SDKs.

## Key documentation

When the user’s request does not clearly fit a single domain above, consult:

- [Integration Options](https://docs.stripe.com/payments/payment-methods/integration-options.md) — Start here when designing any integration.
- [API Tour](https://docs.stripe.com/payments-api/tour.md) — Overview of Stripe’s API surface.
- [Go Live Checklist](https://docs.stripe.com/get-started/checklist/go-live.md) — Review before launching.