Unmarshal’s Custom RPC & Testnet Setup Guide on MetaMask

3 min readApr 28, 2022


For a while now, there’s been massive progress in how Unmarshal has grown. We’ve seen a lot of launches, implementations, and integration happen in its ecosystem. Most recorded are the launch of its explorer which we can all call the ‘Google of Blockchain’ — XScan, Dataverse, its node founder program, and many more.

One of the major integration that has brought mass adoption to the utilization of the Unmarshal ecosystem is the Custom RPC & Testnet set up on Metamask.

Most of the problems encountered using Metamask are tweaking or adding a new network or blockchain RPC for the display of assets and transaction accomplishment. Owing to that fact, metamask users find it tedious or brooding to access their wallets on different blockchain networks.

By default, the Metamask web wallet has the Ethereum network automatically added, so users can only send, receive or make transactions on that chain giving them inaccessibility to other networks. Unmarshal commitment to its users has brought them to make available a network of blockchain nodes to the public.

These blockchain nodes will aid users in seamlessly performing transactions in a decentralized manner and also give them enough thought on making financial decisions.

To set up the Unmarshal Custom RPC & Testnet on your Metamask web wallet is easy peasy. You just have to follow the guide where the utilization of the unmarshal node and explorer will help connect to the Ethereum, Binance Smart Chain & Polygon Network effortlessly.

Let’s start with setting up the Custom RPC to Metamask then the guide for the testnet network will follow.

Unmarshal Custom RPC Setup on MetaMask

To set up the Ethereum, Binance Smart Chain & Polygon Mainnet on metamask, all that’s needed to be done is get a name for the mainnet, RPC URL, ChainID, symbol, and block explorer URL.

The block explorer URL here will be Unmarshal’s blockchain explorer which helps to query blockchain data — Xscan. Now let’s delve into the information that needed to be twitched to set up the necessary networks.

Unmarshal Ethereum RPC Node

Network Name: Unmarshal Ethereum Mainnet
ChainID: 1
Symbol: ETH
Block Explorer URL:

Unmarshal Binance Smart Chain RPC Node

Network Name: Unmarshal BSC Mainnet
ChainID: 56
Symbol: BNB
Block Explorer URL:

Unmarshal Matic RPC Node

Network Name: Unmarshal Matic Mainnet
ChainID: 137
Symbol: MATIC
Block Explorer URL:

Unmarshal Testnet Setup on MetaMask

It can be so challenging for web3 developers to test their DApps on several networks before the main launch. Unmarshal has helped provide testnet support for Rinkeby, Mumbai Polygon, and BNB Chain.

By default, getting started with the testnet support, the user or developer will have to make an HTTP call with curl. To set up all networks, follow up the curls to access the testnet below.

BSC Testnet

curl — location — request GET

Matic Testnet

curl — location — request GET

Rinkeby Testnet

curl — location — request GET

Get performant APIs for accessing multi-chain or NFT data at attractive discounts of 50%!​ To access Unmarshal’s APIs, check out the Unmarshals Docs

About Unmarshal

Unmarshal is a Decentralized network of blockchain data indexers and transforming tools to power DeFi applications on any chain

For More Information about Unmarshal:
Website: https://unmarshal.io/
Telegram Group: https://t.me/joinchat/RRUIzbuhlA8-6Kjk
Twitter: https://twitter.com/unmarshal
Medium: https://medium.com/unmarshal-io

For any queries, reach out to us at info@unmarshal.io




Content Creator || Blockchain Ambassador || Public Speaker || Community Management. Reach out to me: ekerekepreciousimeh@gmail.com