> For the complete documentation index, see [llms.txt](https://docs.catfee.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.catfee.io/en/getting-started.md).

# Getting started

- [Quick Start Guide](https://docs.catfee.io/en/getting-started/quickstart.md)
- [Buy Energy via Direct TRX Transfer](https://docs.catfee.io/en/getting-started/buy-energy-via-transfer-on-catfee.md): Buy energy via direct TRX transfer on TRON network.
- [Buy Energy via DApp](https://docs.catfee.io/en/getting-started/buy-energy-via-dapp-on-catfee.md): Buy Energy on TRON network  through your wallet's DApp browser
- [Buy Energy via API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee.md)
- [API Overview](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/api-overview.md): Buy energy via API on TRON network.
- [Java Example for Calling API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/java.md): Java Example for Calling the CatFee.IO REST API
- [Python Example for Calling API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/python.md): Python Example for Calling the CatFee.IO REST API
- [PHP Example for Calling API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/php.md): PHP Example for Calling the CatFee.IO REST API
- [Node.js Example for Calling API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/nodejs.md): Node.js Example for Calling the CatFee.IO REST API
- [Go Example for Calling API](https://docs.catfee.io/en/getting-started/buy-energy-via-api-on-catfee/go.md): Golang Example for Calling the CatFee.IO Rest API
- [API Supports Idempotency](https://docs.catfee.io/en/getting-started/api-supports-idempotent-requests.md)
- [Webhook](https://docs.catfee.io/en/getting-started/webhook.md)
- [Energy Subleasing Service](https://docs.catfee.io/en/getting-started/what-is-energy-sublet-on-catfee.md)
- [Flash Energy Service](https://docs.catfee.io/en/getting-started/flash-energy-service.md)
- [USDT Telegram Premium Reselling](https://docs.catfee.io/en/getting-started/telegram-premium-reseller-on-catfee.md)
- [TRX Instant Swap Business](https://docs.catfee.io/en/getting-started/trx-instant-swap-business.md): TRX Instant Swap Service Guide
- [Blockchain Monitoring Service](https://docs.catfee.io/en/getting-started/blockchain-monitoring-service.md): 🔍 CatFee Blockchain Monitoring Service 📊 CatFee Blockchain Monitoring Service helps users track real-time blockchain data changes, such as transactions, balances, and blocks.
- [Real-Time Collection](https://docs.catfee.io/en/getting-started/real-time-collection.md)
- [TRON Node Connection Guide](https://docs.catfee.io/en/getting-started/tron-node-guide.md)
- [Quick Start Guide](https://docs.catfee.io/en/getting-started/tron-node-guide/quick-start.md): This guide helps you complete CatFee TRON Node integration and calls within minutes.
- [Pricing Plan](https://docs.catfee.io/en/getting-started/tron-node-guide/pricing-plan.md): This page introduces the pricing plans and resource configurations for CatFee TRON Node, suitable for DApps and blockchain applications of different sizes.
- [Frequently Asked Questions (FAQ)](https://docs.catfee.io/en/getting-started/faq.md)
- [Terms of Service](https://docs.catfee.io/en/getting-started/terms-of-service.md)
- [Seamless Energy](https://docs.catfee.io/en/getting-started/seamless-energy.md): Learn what CatFee Seamless Energy is, which broadcast flows it fits, and how it automatically prepares ENERGY for TRON contract transactions without changing the original transaction.
- [Quick Start](https://docs.catfee.io/en/getting-started/seamless-energy/quick-start.md): Follow the shortest developer path to apply for a CatFee Seamless Energy node, replace the signed transaction broadcast entry point, and complete the first TRON contract transaction broadcast test.
- [Application Integration](https://docs.catfee.io/en/getting-started/seamless-energy/application-integration.md): Developer guide for integrating CatFee Seamless Energy into HTTP or gRPC broadcast flows, including authentication, request examples, balance policy, and integration checklist.
- [AI-Assisted Integration](https://docs.catfee.io/en/getting-started/seamless-energy/ai-assisted-integration.md): Developer guide for using AI coding assistants to locate the TRON broadcast entry point, generate an integration plan, check security boundaries, and complete CatFee Seamless Energy integration testin
- [Wallet Settings](https://docs.catfee.io/en/getting-started/seamless-energy/wallet-settings.md): Learn how different wallets, clients, and applications should configure the CatFee Seamless Energy node, and how to choose an integration method based on custom node, Header, or backend relay support.
- [TronLink Setup](https://docs.catfee.io/en/getting-started/seamless-energy/wallet-settings/tronlink-setup.md): Learn how to configure the CatFee Seamless Energy node in TronLink or similar TRON wallets that support custom nodes, and complete the first broadcast test.
- [Other Wallets and Apps](https://docs.catfee.io/en/getting-started/seamless-energy/wallet-settings/other-wallets-and-apps.md): For other wallets, DApps, backend services, and self-built middleware, learn how to connect to the CatFee Seamless Energy node and when to choose different authentication modes.
- [Security](https://docs.catfee.io/en/getting-started/seamless-energy/security.md): Understand the security model of CatFee Seamless Energy nodes, what the node can see, what it cannot do, and how to protect the node domain and AccessKey.
- [FAQ](https://docs.catfee.io/en/getting-started/seamless-energy/faq.md): Common statuses, error causes, resource handling boundaries, and broadcast behavior for CatFee Seamless Energy integration, for quick troubleshooting by wallets and developers.