> ## Documentation Index
> Fetch the complete documentation index at: https://docs.uniblock.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Superseed Testnet (SUPR) Overview

Superseed Testnet (SUPR) RPC

Use Uniblock's JSON-RPC endpoint to access Superseed Testnet (SUPR) with low-latency routing and a single API surface across providers.

## What is Superseed Testnet?

Superseed Testnet is an EVM-compatible testnet. It is a testnet for Superseed. Its ticker symbol is `SUPR`.

## What is the Superseed Testnet (SUPR) JSON-RPC API?

The JSON-RPC API is the standard interface for reading chain state, sending transactions, and interacting with smart contracts where supported.

## Making API requests

Send a POST request to `https://api.uniblock.dev/uni/v1/json-rpc?chainId=53302`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network           | Symbol | Type    | Chain ID |
| ----------------- | ------ | ------- | -------- |
| Superseed         | `SUPR` | Mainnet | `5330`   |
| Superseed Testnet | `SUPR` | Testnet | `53302`  |

## API reference

Browse the available method groups for this chain:

* [Debug](/reference/jsonrpc/53302/debug/debug-get-bad-blocks)
* [EVM](/reference/jsonrpc/53302/evm/eth-accounts)
* [Trace](/reference/jsonrpc/53302/trace/trace-block)