# Tron JSON-RPC API

Per [Tron's documentation](https://developers.tron.network/reference/json-rpc-api-overview):

JSON-RPC is a stateless, lightweight remote procedure call (RPC) protocol.

The JSON-RPC interface supported by the TRON network is compatible with Ethereum's. However, due to the difference in chain mechanism and design, TRON cannot support some interfaces on Ethereum. At the same time, TRON also provides dedicated APIs to create different types of transactions.

### HEX value encoding

At present there are two key data types that are passed over JSON: unformatted byte arrays and quantities. Both are passed with a hex encoding, however with different requirements to formatting:

When encoding QUANTITIES (integers, numbers): encode as hex, prefix with “0x”, the most compact representation (slight exception: zero should be represented as “0x0”).\
Examples:

* 0x41 (65 in decimal)
* 0x400 (1024 in decimal)
* WRONG: 0x (should always have at least one digit - zero is “0x0”)
* WRONG: 0x0400 (no leading zeros allowed)
* WRONG: ff (must be prefixed 0x)

When encoding UNFORMATTED DATA (byte arrays, account addresses, hashes, bytecode arrays): encode as hex, prefix with “0x”, two hex digits per byte.\
Examples:

* 0x41 (size 1, “A”)
* 0x004200 (size 3, “\0B\0”)
* 0x (size 0, “”)
* WRONG: 0xf0f0f (must be even number of digits)
* WRONG: 004200 (must be prefixed 0x)


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