I just realized that running a blockchain node is one of the least competitive ways to make money in crypto, and today I want to share my experience about this.

First, what exactly is a node? It’s simply a computer or server connected to the blockchain network to receive, process, and store data. Each node keeps a copy of the ledger, verifies transactions, and ensures the entire system operates correctly. Without nodes, the blockchain cannot exist, plain and simple.

There are a few common types of nodes I often encounter. Full nodes store the entire blockchain history, which is very heavy but reliable. Light nodes only keep block headers, much lighter but depend on full nodes for verification. Then there’s Lightning nodes used for Bitcoin Layer 2, and Supernodes with special roles in network monitoring.

Now, the most exciting part — how to make money from nodes and how it works. The first method is retroactive airdrops. Many projects have given tokens to early node operators. I know Celestia awarded about $3,000 USD to light node runners, Ironfish gave over $1,000 USD for testnet node operators. This opportunity is quite big if you find the right project at the right time.

The second way is becoming a validator. Some chains like Ethereum, Cosmos, Avalanche allow nodes to operate as validators to earn staking rewards. You need to stake enough tokens or get delegated by others, and you must have stable operation knowledge.

The third method is running testnet nodes for promising projects. Currently, many testnets are open for registration, such as Zircuit, Seda, 0G. These projects don’t have tokens yet but have high airdrop potential. I’m running a few of these right now.

The fourth way is providing RPC nodes. If you have a powerful setup and high bandwidth, you can partner with dApps that need fast data, charge fees, or receive grants from projects.

How to get started? Step one is renting a suitable VPS. Contabo, Hetzner, AWS, DigitalOcean are widely used. Carefully check the configuration requirements of each project — Layer 1 like Aptos, Sui often need 16GB RAM or more. Step two is installing the node using scripts from the project’s Github, usually on Ubuntu 20.04 or 22.04. Step three is continuously monitoring the status, updating configurations as needed — for example, Farcaster increased from 8GB to 16GB RAM. Step four is recording wallet addresses, node IDs, logs as proof for retroactive airdrops.

In reality, running a node effectively doesn’t require large capital but demands patience, regular project monitoring, and clear documentation. If you’re new, start with free testnets to understand the process, then expand to validators or more dedicated node systems. This is a sustainable way to earn money without fierce competition like other methods in crypto.