> ## 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.

# Corn (BTCN) Overview

Corn (BTCN) RPC

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

## What is Corn?

Corn is an EVM-compatible mainnet. Its ticker symbol is `BTCN`.

## What is the Corn (BTCN) 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=21000000`. Include the JSON-RPC method and params in the request body.

## Supported networks

| Network | Symbol | Type    | Chain ID   |
| ------- | ------ | ------- | ---------- |
| Corn    | `BTCN` | Mainnet | `21000000` |

## API reference

Browse the available method groups for this chain:

* [Debug](/reference/jsonrpc/21000000/debug/debug-account-range)
* [EVM](/reference/jsonrpc/21000000/evm/eth-accounts)