# Available networks

There are currently 2 public networks running NeuroWeb code: 

1. **NeuroWeb Mainnet:** The NeuroWeb main network secured by the Polkadot Relay Chain, with NEURO as the native token and TRAC deployed as a native XC20 asset. This is the production environment.
2. **NeuroWeb Testnet:** The NeuroWeb test network secured by the Rococo Relay Chain hosted by Parity. This is the recommended development environment for anyone building on NeuroWeb.

### NeuroWeb Mainnet

<table><thead><tr><th width="365">Parameter</th><th>Value</th></tr></thead><tbody><tr><td>Chain ID</td><td>2043</td></tr><tr><td>Network Name</td><td>NeuroWeb Mainnet</td></tr><tr><td>RPC Endpoint</td><td><a href="https://astrosat-parachain-rpc.origin-trail.network/">https://astrosat-parachain-rpc.origin-trail.network/</a></td></tr><tr><td>Token symbol</td><td>NEURO (MNEURO in MetaMask), formerly OTP</td></tr><tr><td>Block Explorer URL</td><td><a href="https://neuroweb.subscan.io/">https://neuroweb.subscan.io/</a></td></tr></tbody></table>

Note: Because of the difference in token decimals between ETH (18) and NEURO/OTP (12), one token in MetaMask will be equal to 1 million NEUROs

### NeuroWeb Testnet

{% hint style="success" %}
The NeuroWeb Testnet is the testing environment for the NeuroWeb. It is the recommended environment for all DKG & Parachain development purposes — if you are building a dapp or smart contract, you can use the testnet as your "staging" environment.
{% endhint %}

Polkadot.js endpoint is available [here](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Fparachain-testnet-rpc.origin-trail.network#/explorer).

Metamask connection parameters:

<table><thead><tr><th>Parameters</th><th>Value</th><th data-hidden></th></tr></thead><tbody><tr><td>Chain ID</td><td>20430</td><td></td></tr><tr><td>Network Name</td><td>NeuroWeb Testnet</td><td></td></tr><tr><td>RPC Endpoint</td><td><a href="https://lofar-testnet.origin-trail.network">https://lofar-testnet.origin-trail.network</a></td><td></td></tr><tr><td>Token symbol</td><td>NEURO (MNEURO in MetaMask), formerly OTP</td><td></td></tr><tr><td>Block Explorer URL</td><td><a href="https://neuroweb-testnet.subscan.io/">https://neuroweb-testnet.subscan.io/</a></td><td></td></tr></tbody></table>

Note: Because of the difference in token decimals between ETH (18) and NEURO/OTP (12), one token in Metamask will be equal to 1 million NEUROs