Decentralised finance (DeFi), NFTs, and blockchain-based applications are proliferating. Users struggle to keep up with hundreds of Ethereum Virtual Machine (EVM)-compatible networks. MetaMask, a popular cryptocurrency wallet, enables users to add networks; however, some may still encounter issues with manual setup.

Craigslist, an open-source directory, integrates with MetaMask to facilitate the creation of blockchain networks. This detailed explanation, based on the 28 June 2025 Techedubyte.com article, explains Chainlist, its connection to MetaMask, and how it enhances the crypto user experience and security.

What is Chainlist?

Craigslist lists approximately 385 EVM-compatible magnets and tenets on its community-driven, open-source platform. Each item includes verifiable data like:

• Chain ID

• RPC URL

• Network name

• Native currency

Craigslist simplifies linking your MetaMask wallet to new networks, such as Polygon, Binance Smart Chain, Optimism, Arbitrum, and others, by consolidating this information.

What is MetaMask, and Why Do Users Need to Add Networks?

MetaMask, a non-custodial crypto wallet and browser plugin, enables users to manage tokens, connect to dApps, and use numerous blockchain networks—MetaMask defaults to the Ethereum mainnet. You must manually add other blockchains, which can lead to errors, mistakes, and security issues.

MetaMask users commonly face the following challenges:

• Finding the correct chain details

• Risk of connecting to malicious or fake networks

• Time-consuming manual configuration

That’s where Chainlist becomes a game-changer.

How Chainlist Integrates with MetaMask

Craigslist and MetaMask simplify network addition. Users can search, verify, and add networks with a single click using the integration.

Steps to Add a Network Using Chainlist (As per Techedubyte)

1. Visit the Official Site
   Go to chainlist.org. Ensure you’re on the correct site to avoid phishing scams.

2. Connect MetaMask
   Click “Connect Wallet” at the top right. Select MetaMask from the list. Approve the connection inside your wallet.

3. Search for a Network
   Use the search bar to find a specific network, e.g., “Polygon” or “Arbitrum”.

4. Click “Add to MetaMask.”
   Once you find the network, click the “Add Chain” button.

5. Approve in MetaMask
   MetaMask will display a pop-up with network details. Click “Approve” and optionally “Switch Network” to start using it immediately.

What’s New in MetaMask v12.0 (2025 Update)

According to Techedubyte, MetaMask’s latest version (v12.0) includes:

• More innovative network switching across multiple dApps

• Enhanced privacy settings

• Better compatibility with Layer 2 chains

This boosts MetaMask’s strength with Chainlist.  Network switching is now more reliable, eliminating the need for manual intervention.

Key Benefits of Using Chainlist with MetaMask

Feature	Benefit
Pre-verified Chain Data	Reduces the risk of errors or scams
One-click Network Setup	Saves time and effort
Supports 385+ Networks	Access to a growing number of EVM-compatible chains
Safe and Secure	Chainlist is open-source and transparent
Community-Driven Updates	Keeps pace with new blockchain developments

Security Considerations: Stay Safe While Adding Networks

Techedubyte emphasizes security best practices when using Chainlist and MetaMask:

• Only use the official site: chainlist.org

• Check all network details before approving.

• Never share your MetaMask seed phrase.e

• Avoid using unknown or obscure RPC URLs unless they have been verified.

The MetaMask help centre advises users that Chainlist is not officially maintained. Be cautious while introducing new or unfamiliar chains.

Real-World Use Cases: Why It Matters in 2025

With the Web3 space booming in 2025, many dApps and protocols are launching on Layer 2s like:

• Optimism

• Linea

• Scroll

• ZkSync Era

Each needs a distinct network setup. Craigslist simplifies ecosystem user onboarding. Adding the right network quickly may make or break a developer, NFT collector, or DeFi fanatic.

Comparing Chainlist vs Manual Setup

Aspect	Manual Setup	Chainlist Setup
Time Required	5–10 minutes per network	Under 1 minute
Risk of Typos	High	Low (verified data)
Technical Skill	Medium to High	Beginner-friendly
Phishing Risk	Depends on source	Lower (official listings)

Craigslist is safer and speedier, especially for beginning users.

Conclusion: Chainlist + MetaMask = Easier Web3 Access

Craigslist simplifies access to increasingly complicated blockchain ecosystems. MetaMask integration enables secure, fast, and seamless connection to new networks, which is essential in the fast-paced Web3 environment of 2025.

Techedubyte’s thorough overview covers the evolution of wallet infrastructure and how community-led platforms, such as those found on Craigslist, empower all users.

FAQs

What is Chainlist, and how does it help MetaMask users?

The open-source Chainlist lists approximately 385 EVM-compatible blockchain networks. Chain IDs and RPC URLs are checked. Craigslist allows users to add these networks with a single click when linked to MetaMask, saving time and reducing errors.

Is it safe to use Chainlist to add networks to MetaMask?

Valid if used properly. Chainlist.org is the official site. Craigslist uses verified community data; however, MetaMask users should double-check the information before approving it. Never link to dubious sites or reveal your wallet seed phrase.

What types of blockchain networks are listed on Chainlist?

Chainlist includes a wide range of EVM-compatible networks, such as:

• Ethereum mainnet and testnets

• Binance Smart Chain (BSC)

• Polygon

• Arbitrum

• Optimism

• Avalanche

• ZkSync

• Fantom
  It supports both mainnets and testnets, which is helpful for developers and users alike.

Do I need any technical knowledge to use Chainlist with MetaMask?

No. The process is beginner-friendly:

1. Visit Chainlist.org

2. Connect your MetaMask wallet

3. Search for the network

4. Click “Add to MetaMask.”

5. Approve in MetaMask. That’s it! No coding or manual entry is needed.

What should I do if the network I want isn’t listed on Chainlist?

Enter the Chain ID, RPC URL, and currency symbol to add a network to MetaMask manually. This information should come from the network’s website or documentation. To help Chainlist, provide new network data using its community method.