# Page Not Found

The URL `full-code-example/buy-energy-by-api-using-private-key` does not exist.

You might be looking for one of these pages:
- [Buy energy by API using private key](https://docs.tronsave.io/full-code-example/code-example-v0/buy-energy-by-api-using-private-key.md)
- [Buy Resource by API using private key](https://docs.tronsave.io/full-code-example/code-example-v2/buy-resource-by-api-using-private-key.md)
- [Buy energy by API using api key](https://docs.tronsave.io/full-code-example/code-example-v0/buy-energy-by-api-using-api-key.md)
- [Extend order by API using private key](https://docs.tronsave.io/full-code-example/code-example-v2/extend-order-by-api-using-private-key.md)
- [Buy Resources by API using api key](https://docs.tronsave.io/full-code-example/code-example-v2/buy-resources-by-api-using-api-key.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.tronsave.io/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.tronsave.io/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/full-code-example/code-example-v0/buy-energy-by-api-using-private-key.md`)
- Use `Accept: text/markdown` header for content negotiation