PegCheck — Real-time Stablecoin Health Monitor

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About

What is PegCheck?

PegCheck is a real-time stablecoin health monitoring platform. It tracks the peg price of the most widely used stablecoins — USDT, USDC, USDS, PYUSD, FDUSD, RLUSD, TUSD and Ethena — and flags any deviation the moment it happens. Premium subscribers receive instant email alerts when any coin drops below $0.975.

Why we built it

In 2022 TerraUSD collapsed almost overnight, wiping out billions in savings. Most people had no idea it was happening until it was too late. PegCheck exists so that never happens to you without warning. Be first to know. Before the market reacts.

Who is it for?

Anyone holding or using stablecoins. You don't need to be a trader or a crypto expert. If you have money in USDT, USDC or any other stablecoin, you deserve to know the second something goes wrong.

How it works

PegCheck pulls live price data every 60 seconds from 6 independent sources — CoinGecko, Coinbase, Binance, Kraken, DefiLlama and Chainlink — and calculates a median price to eliminate bad data. Green means healthy. Amber means caution. Red means depeg detected.

Roadmap

✅ Multi-source price feeds

Live — prices aggregated from CoinGecko, Coinbase, Binance, Kraken, DefiLlama and Chainlink. Median calculation protects against bad data.

✅ Historical data & charts

Live — 7, 30 and 90 day price charts for every stablecoin we track.

✅ Collateralisation ratios

Live — reserve breakdowns and collateral ratios for every coin.

✅ Reserve transparency

Live — audit dates, auditors and transparency scores for every coin.

✅ Large transaction tracking

Live — significant on-chain movements flagged automatically.

✅ REST API with authentication

Live — real-time stablecoin data API with Bearer token auth, 3 pricing tiers and 30 day free trial.

✅ Developer dashboard

Live — API customers can view their key, usage stats and calls remaining at pegcheck.uk/dashboard.

✅ Chainlink Proof of Reserve

Live — on-chain verified reserve data for supported stablecoins, powered by Chainlink.

✅ On-chain depeg event logging

Live — every depeg event is permanently recorded on the Sepolia blockchain and publicly verifiable at pegcheck.uk/onchain.

Wallet integration

Connect your wallet and monitor only the stablecoins you actually hold.

🛠️ For Developers

Building a wallet, exchange, or DeFi app? PegCheck offers a REST API with real-time stablecoin prices, depeg alerts, and webhook notifications — powered by 1,500+ data points.

View API & Pricing →

The small print

PegCheck displays information only. Nothing on this site is financial advice. Always do your own research before making any financial decisions.

Not financial advice

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