Buy Resources
Two ways to buy Energy and Bandwidth through the TronSave API — Signed Transaction or API Key — and how to choose between them.
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Two ways to buy Energy and Bandwidth through the TronSave API — Signed Transaction or API Key — and how to choose between them.
TronSave's API exposes two methods for purchasing resources (Energy and Bandwidth). Both let you estimate an order before placing it and then create the order; they differ in how the payment is authorized and settled.
Your private key signs each transaction
Yes, per order
Maximum control over funds; non-custodial flows
A TronSave API key on a prefunded internal account
No per-order chain fee
High-throughput, low-latency integrations
You build a transaction and sign it with your own private key. The signed transaction is submitted to the blockchain network for validation and execution, so only the holder of the private key can authorize the purchase.
Advantages
High security — every order is signed with your private key.
Direct control over payment funds; you manage them yourself.
Disadvantages
Transactions submitted to the blockchain network incur additional transaction fees.
More complex to integrate — you need to handle transaction signing and validation.
Endpoints:
→ Read the Signed Transaction guide
To use the API key method, create a TronSave internal account and deposit funds into it. Once the internal account exists, an API key is generated and used to authenticate your transactions — no per-order on-chain signing is required.
Advantages
Fast and secure transactions.
Easy integration.
Saves transaction fees.
Disadvantages
Funds must be deposited into the internal account before transactions can execute.
TronSave manages the customer's internal account.
Need an API key first? See Get API Key.
Endpoints:
Learn the difference between Energy and Bandwidth.
Review the Order Types before placing orders.
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