> ## 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.

# X Layer Testnet (OKB) Overview

X Layer Testnet (OKB) RPC

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

## What is X Layer Testnet?

X Layer Testnet is an EVM-compatible testnet. It is a testnet for X Layer. Its ticker symbol is `OKB`.

## What is the X Layer Testnet (OKB) 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=1952`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network         | Symbol | Type    | Chain ID |
| --------------- | ------ | ------- | -------- |
| X Layer         | `OKB`  | Mainnet | `196`    |
| X Layer Testnet | `OKB`  | Testnet | `1952`   |

## API reference

Browse the available method groups for this chain:

* [Debug](/reference/jsonrpc-docs/1952/debug/debug-db-ancient)
* [EVM](/reference/jsonrpc-docs/1952/evm/eth-accounts)