Build your payment infrastructure with AI
Paywall is the first payment infrastructure integrated with Cursor IDE.
443 documents, one command.
Why Paywall × Cursor?
Smart Context
Cursor AI loads only the relevant documents based on your question. Payment questions activate payment documents, while webhook questions activate webhook documents.
Offline Access
All API documents are downloaded into your project. You can get accurate information about Paywall from Cursor AI even without an internet connection.
Up-to-date Format
It uses Cursor’s latest .mdc rule format. YAML frontmatter provides smart rule management and activation control.
Ready-to-use Examples
Ready-to-use code examples for C#, Go, Java, PHP, Python, Ruby, TypeScript, and cURL. Start immediately, no matter which language you use.
Rule Files
| File | Scope | Status |
|---|---|---|
| paywall-core.mdc | Core information, authentication, environment settings | ALWAYS |
| odeme-servisi.mdc | 3D Secure, Non-Secure, refund, cancellation, installments | AUTO |
| tekrarli-odeme.mdc | Subscription and recurring payment management | AUTO |
| pazaryeri.mdc | Marketplace, revenue management, debt tracking | AUTO |
| payout.mdc | Payouts and IBAN transfers | AUTO |
| cuzdan.mdc | Wallet services and balance management | AUTO |
| webhook-hata.mdc | Callback endpoints and error codes | AUTO |
How It Works
Run the Command
With a single command, the .cursor/rules/ and paywall-docs/ folders are added to your project.
Open Cursor
Cursor IDE automatically reads the rule files and includes them in context.
Start Asking
Ask questions about the Paywall API and get accurate, up-to-date answers.
What is Paywall Cursor Rules?
Paywall Cursor Rules is a set of rules that integrates the entire API documentation of the Paywall payment infrastructure into the Cursor IDE’s AI assistant. When developers ask Cursor questions about payment services, webhook management, recurring payments, or marketplace processes, the AI no longer responds with generic information; instead, it provides answers based on Paywall’s up-to-date and accurate documentation.
In the traditional method, developers must navigate through API documents, find the relevant information, adapt code examples to their own projects, and manually track integration details. Paywall Cursor Rules reverses this process: the documentation comes directly to your project, and you just ask the questions you need answered.
Installed with a single command, this structure places hundreds of API documents and module-based rule files into the .cursor/rules/ directory. Cursor AI automatically activates only the relevant rules based on the topic you ask about. For example, if you ask about payment flows, the payment service rules are triggered; if you ask about webhook errors, the webhook and error management rules are included in the context.
What are Cursor .mdc Rules and What Do They Do?
Files with the .mdc extension are the rule file formats used by the Cursor IDE to provide context to its AI model. Thanks to their YAML frontmatter structure, you can define exactly when, under what conditions, and within what scope each rule file will be activated.
The .mdc rules offered by Paywall are divided into two categories:
- Always-Active Rules: Files like paywall-core.mdc, which contain core authentication, environment settings, and general architecture information, are included in every query.
- Automatically-Triggered Rules: Module-based rules—such as payment services, recurring payments, marketplace, payout, wallet, and webhook-error management—are activated only when a related question is asked.
This architecture ensures that Cursor AI is never overloaded with unnecessary data, allowing it to respond with the most relevant and up-to-date documentation for the given context. Consequently, the code suggestions and explanations generated by the AI match real-world API behavior precisely.
AI-Powered Payment Orchestration
Payment systems require managing many moving parts simultaneously, such as multi-bank integrations, 3D Secure flows, installment structures, subscription cycles, and marketplace commission calculations. Tracking this complexity manually slows down the development process and increases the risk of errors.
Paywall simplifies this complexity within the financial sector through a payment orchestration approach managed via a single infrastructure. It provides access to pre-established integrations with major banks (such as Akbank, Garanti BBVA, YapıKredi, DenizBank, İş Bankası, Ziraat, Vakıfbank, Halkbank, ING, TEB, QNB, KuveytTürk, and Fibabanka) through a single API.
The Cursor Rules integration combines this orchestration layer with an AI-powered development experience; developers can simply ask Cursor AI which bank, payment method, or module to use, and shape their code accordingly.
How to Install Paywall Rules in Cursor
Step-by-Step Installation Guide
The installation process consists of three simple steps:
- Run the Command: Run the appropriate command for your operating system in your terminal:
- macOS / Linux: curl -sSL https://cursor.paywall.one/install.sh | bash
- Windows: iex (iwr https://cursor.paywall.one/install.ps1).Content
- This command automatically adds the .cursor/rules/ and paywall-docs/ folders to your project.
- Open Cursor: The Cursor IDE automatically detects the rule files in your project and includes them in the AI context. No extra configuration is required.
- Start Asking Questions: Ask your questions about the Paywall API directly to Cursor AI. You will receive accurate and up-to-date answers regarding creating payment flows, listening to webhooks, setting up subscriptions, and more.
Upon installation, hundreds of API documents, module-based rule files, and ready-to-use code examples for supported programming languages are downloaded directly into your project.
What Can You Do with Paywall Cursor Rules?
Payment Flows
You can ask Cursor AI to implement 3D Secure and Non-Secure payment flows, refunds, cancellations, and installment payment structures directly at the code level. The AI suggests which endpoint to call with which parameters based on the latest documentation.
Webhook Management
Cursor AI guides you step-by-step through setting up callback endpoints, listening to specific event types, and interpreting error codes. You can also get up-to-date examples for the webhook validation process.
Recurring Payments and Subscriptions
For scenarios like creating subscription plans, defining trial periods, managing automatic collection cycles, and handling subscription cancellations, the relevant module rules will automatically activate to guide you with accurate code examples.
Marketplace and Payout Processes
You can quickly understand and implement multi-step processes such as tracking vendor earnings, commission calculations, debt management, and withdrawing money via IBAN (payouts) in a marketplace model through Cursor AI.
Module-Based Rules
Paywall Cursor Rules consists of seven separate rule files, each focusing on a specific topic. This modularity ensures that Cursor AI loads only the relevant information, boosting both performance and response accuracy.
- Payment Service (odeme-servisi.mdc): Covers all details regarding 3D Secure, Non-Secure payments, refunds, cancellations, and installment transactions. It automatically activates for any project handling core payment integration.
- Recurring Payment (tekrarli-odeme.mdc): Contains subscription and membership management processes. It serves as a reference for periodic collections, plan changes, and subscription status management.
- Marketplace (pazaryeri.mdc): Covers earnings management and debt tracking processes within a marketplace model. It is a critical resource for teams building multi-vendor platforms.
- Payout (payout.mdc): Contains all API details related to cash withdrawals and bank transfers via IBAN.
- Wallet (cuzdan.mdc): Covers wallet services and balance management processes. It provides the necessary rules for applications utilizing user or vendor digital wallets.
- Webhook and Error Management (webhook-hata.mdc): Details callback endpoint structures and the meanings of potential error codes. It helps quickly identify and resolve errors encountered during the integration process.
Note: All of these modules activate automatically only when a relevant question is asked, while paywall-core.mdc keeps core information like authentication and environment settings in the context at all times.
Supported Programming Languages
Paywall Cursor Rules is designed to work independently of the technology stack developers use. Ready-made code examples are available in the following languages:
- C#
- Go
- Java
- PHP
- Python
- Ruby
- TypeScript
- cURL
No matter which language you are developing in, Cursor AI will respond to your questions with executable code examples tailored to that specific language. This ensures that teams achieve consistent results from the same documentation source, regardless of their tech stack.
