Airdrop101
MACos Chain

Add MACos Chain to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Chain ID: 20261·Symbol: MCOS

MACos Chain is an EVM-compatible blockchain with Chain ID 20261 and native token MCOS. This page lets you add MACos Chain to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://rpc1.codeupp.xyz

Block Explorer

MACos Explorer

What is MACos Chain?

MACos Chain is an EVM (Ethereum Virtual Machine) compatible blockchain network. Any EVM wallet — MetaMask, Rabby, OKX Wallet, Trust Wallet, Coinbase Wallet — can connect and transact on MACos Chain once you add the network configuration.

Why do you need to add MACos Chain to your wallet?

MetaMask and most wallets only come pre-configured with Ethereum Mainnet. To transact, swap tokens, or use dApps on MACos Chain, you need to add the network first. Entering an incorrect Chain ID or RPC can put your assets at risk. Use the "Add to wallet" button above — data sourced directly from chainid.network, the canonical Ethereum chain registry.

How to add MACos Chain to your wallet

  1. 1

    Click Add to wallet

    Press the "Add to wallet" button above. MetaMask, OKX Wallet, Rabby Wallet or Trust Wallet will show a popup asking you to confirm adding the MACos Chain network.

  2. 2

    Confirm in your wallet

    Your wallet shows the MACos Chain network details: Chain ID 20261, native token MCOS. Verify the Chain ID is correct, then click "Approve" or "Add Network".

  3. 3

    Switch to the new network

    After confirming, your wallet automatically switches to MACos Chain. You can start transacting right away — you will need MCOS to pay gas fees.

MACos Chain network technical details

To add manually, go to Settings → Networks → Add Network in MetaMask (or your wallet's equivalent) and enter the details below:

NameMACos Chain
Chain ID20261
Native tokenMCOS
Decimals18
RPC Endpointhttps://rpc1.codeupp.xyz
Block Explorerhttps://macosscan.codeupp.xyz

Important notice

  • •Always verify Chain ID 20261 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need MCOS tokens in your wallet to pay gas fees for transactions on MACos Chain
  • •Data on this page is sourced from chainid.network — the community-verified Ethereum chain registry
  • •If the "Add to wallet" button doesn't work, your wallet may not support wallet_addEthereumChain — add the network manually using the details below

Frequently asked questions

Is it safe to add MACos Chain to MetaMask?▾
Yes, if you use the "Add to wallet" button on this page. Data is sourced from chainid.network — the community-audited Ethereum registry. Adding a network does not expose your private key or grant any permissions to the dApp.
What is MACos Chain Chain ID?▾
The Chain ID of MACos Chain is 20261. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need MCOS tokens to use MACos Chain?▾
Yes. Every transaction on MACos Chain requires MCOS to pay gas fees. You can purchase MCOS on exchanges and bridge it to MACos Chain, or use a faucet if this is a testnet.
What is the MACos Chain RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the MACos Chain blockchain — sending transactions, reading balances, and checking state. One popular MACos Chain RPC is https://rpc1.codeupp.xyz. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says MACos Chain already exists when I click Add — what do I do?▾
That's completely normal. If MACos Chain is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added MACos Chain but the network won't load — what's wrong?▾
The most common cause is a broken or overloaded RPC endpoint. Your wallet uses RPC to connect to the blockchain — if the RPC is down, the network won't load even if it was added correctly. Fix: copy a different RPC from the list above (prefer green low-latency ones), then go to Settings → Networks in your wallet and replace the old RPC with the new one. Watch the tutorial video above for step-by-step instructions on updating your RPC.