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Milkomeda A1 Testnet

Add Milkomeda A1 Testnet to Your Wallet — MetaMask, OKX, Rabby, Trust Wallet

Testnet
Chain ID: 200202·Symbol: mTAlgo

Milkomeda A1 Testnet is an EVM-compatible blockchain with Chain ID 200202 and native token mTAlgo. This page lets you add Milkomeda A1 Testnet to MetaMask, Rabby Wallet, OKX Wallet or Trust Wallet in one click — no manual Chain ID or RPC entry required.

RPC Endpoints
https://rpc-devnet-algorand-rollup.a1.milkomeda.com

Block Explorer

Blockscout

What is Milkomeda A1 Testnet?

Milkomeda A1 Testnet 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 Milkomeda A1 Testnet once you add the network configuration.

Why do you need to add Milkomeda A1 Testnet to your wallet?

MetaMask and most wallets only come pre-configured with Ethereum Mainnet. To transact, swap tokens, or use dApps on Milkomeda A1 Testnet, 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 Milkomeda A1 Testnet 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 Milkomeda A1 Testnet network.

  2. 2

    Confirm in your wallet

    Your wallet shows the Milkomeda A1 Testnet network details: Chain ID 200202, native token mTAlgo. 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 Milkomeda A1 Testnet. You can start transacting right away — you will need mTAlgo to pay gas fees.

Milkomeda A1 Testnet network technical details

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

NameMilkomeda A1 Testnet
Chain ID200202
Native tokenmTAlgo
Decimals18
RPC Endpointhttps://rpc-devnet-algorand-rollup.a1.milkomeda.com
Block Explorerhttps://explorer-devnet-algorand-rollup.a1.milkomeda.com

Important notice

  • •Always verify Chain ID 200202 before confirming — attackers sometimes create fake networks with similar names but different Chain IDs
  • •You need mTAlgo tokens in your wallet to pay gas fees for transactions on Milkomeda A1 Testnet
  • •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 Milkomeda A1 Testnet 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 Milkomeda A1 Testnet Chain ID?▾
The Chain ID of Milkomeda A1 Testnet is 200202. This unique number identifies the network and prevents MetaMask and other EVM wallets from mixing up transactions across different chains.
Do I need mTAlgo tokens to use Milkomeda A1 Testnet?▾
Yes. Every transaction on Milkomeda A1 Testnet requires mTAlgo to pay gas fees. You can purchase mTAlgo on exchanges and bridge it to Milkomeda A1 Testnet, or use a faucet if this is a testnet.
What is the Milkomeda A1 Testnet RPC endpoint?▾
An RPC endpoint is the server address your wallet uses to communicate with the Milkomeda A1 Testnet blockchain — sending transactions, reading balances, and checking state. One popular Milkomeda A1 Testnet RPC is https://rpc-devnet-algorand-rollup.a1.milkomeda.com. This page shows live latency for each RPC so you can pick the fastest one.
My wallet says Milkomeda A1 Testnet already exists when I click Add — what do I do?▾
That's completely normal. If Milkomeda A1 Testnet is already in your wallet, it will simply switch to that network instead of adding a duplicate — no error or conflict.
I added Milkomeda A1 Testnet 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.