Here is the complete material for your second dev.to article, targeting the crypto programmatic tools we built.
Again, this is pure Markdown with angle brackets < > around the URLs so dev.to doesn't break the links. I also included the strict single-word tags at the bottom.
As a web dev, I've lost count of how many times a crypto project I was building needed a quick unit conversion or a data fetch.
When you're working with Web3.js, Ethers, or just building a simple dashboard, you don't want to import a massive 5MB library just to convert SOL to USDC or fetch a token's current price.
To speed up my own workflow, I built a suite of zero-dependency, browser-native crypto utilities. No API keys required, no JWT tokens, just instant client-side lookups.
Here are the three I use the most:
1. Instant Token Price Lookups
Need to display the live price of ETH, BTC, or an altcoin in your React state? I got tired of reading CoinGecko documentation, so I made a crypto price checker where you just type the ticker (e.g., "PEPE"). It fetches the price, market cap, and 24h change instantly.
2. The Unit Converter We Actually Need
If you've ever tried to manually calculate how many Gwei equals 1 ETH, or how many Lamports are in a 5 SOL transaction, you know the math is annoying. I built a crypto unit converter that handles the specific denominations for Bitcoin (BTC/Sats), Ethereum (ETH/Gwei/Wei), and Solana (SOL/Lamports).
3. Gas Estimator for Quick Math
Before sending a transaction on an EVM chain, I usually want a rough estimate of the fiat cost. Instead of switching tabs to a block explorer, I use this crypto gas fee estimator. You plug in the gas limit and Gwei, and it tells you exactly what you'll pay in USD.
All of these just wrap standard REST APIs but format the output specifically for developers. No fluff, no ads, just the data.
What's your most annoying repetitive task when building crypto dashboards?
