Testnet parameters

Identity

Parameter	Value
Cosmos chain ID	bkc-testnet
EVM chain ID	262144 (hex 0x40000) — also returned by net_version
Bech32 account prefix	bkc (validators: bkcvaloper)
Native token	BKC, base denom bkc, 18 decimals
Key type (accounts and validators)	ML-DSA-65 only (/cosmos.crypto.mldsa65.PubKey)
Sign mode	SIGN_MODE_DIRECT only
HD path (default)	m/44'/118'/0'/0/0 (see Accounts & keys)

Endpoints

Service	URL
EVM JSON-RPC	https://rpc.bkc.network
EVM WebSocket	wss://ws.bkc.network
CometBFT RPC	https://comet-rpc.bkc.network
Cosmos REST (LCD)	https://api.bkc.network
Cosmos gRPC	grpc.bkc.network:443 (TLS)
Explorer (Blockscout)	https://explorer.bkc.network
Faucet	https://faucet.bkc.network

All HTTP endpoints send Access-Control-Allow-Origin: *, so a browser dApp can call them directly.

Adding the network to a wallet

BKC accounts cannot be held by MetaMask or any ECDSA wallet — they cannot sign for an ML-DSA account. Use the BKC Wallet browser extension, or a dApp built on connectBkcWallet. The values a wallet needs:

{
  "chainName": "BKC Testnet",
  "chainId": "0x40000",
  "nativeCurrency": { "name": "BKC", "symbol": "BKC", "decimals": 18 },
  "rpcUrls": ["https://rpc.bkc.network"],
  "blockExplorerUrls": ["https://explorer.bkc.network"]
}

Consensus and blocks

Parameter	Value
Block time	about 1 second (timeout_commit 0.5 s)
Max block size	8 MiB
Max block gas	200,000,000
Max gas per transaction	30,000,000
Max transaction size	256 KiB
Signatures per transaction	at most 4
Minimum gas price	5000000bkc (0.000000000005 BKC per gas)

The full list, with the reasoning behind each value, is in Chain parameters.

Resets

The testnet is reset when the chain software changes in a way that needs a fresh genesis. A reset returns the chain to height 1 and every genesis account to its starting balance; contracts and history are gone. If a deployment script suddenly finds no contract at an address it used yesterday, check the explorer's block height first.