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Stablecoin Peg Monitor
x402
Stablecoin Peg Monitor is a paid API for AI agents from onchain-health.mick8511.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Returns Chainlink oracle prices, deviation from $1 in basis points, depeg flags, and on-chain total supply for USDC, USDT, DAI, and USDe across up to 5 EVM chains.
Price / call$0.003
Success—
StatusUnknown
How this service works
Stablecoin peg monitor: Chainlink oracle price, deviation from $1 in basis points, a depeg flag (over 1%) and on-chain total supply per chain for USDC, USDT, DAI and USDe across Ethereum, Base, Arbitrum, Optimism and Polygon. Live reads, one Multicall3 per chain. Free sample: https://onchain-health.mick8511.workers.dev/sample
Output
A structured response per chain and stablecoin containing: the Chainlink oracle price, the deviation from $1 expressed in basis points, a boolean depeg flag (true when deviation exceeds 1%), and the on-chain total supply. Data is fetched live via one Multicall3 call per chain.
Example use cases
DeFi protocol risk alert
“I need to know immediately if any of USDC, USDT, DAI, or USDe are more than 1% off their $1 peg on Ethereum or Arbitrum — check all four and flag anything that looks like a depeg.”
Cross-chain stablecoin supply audit
“Can you pull the on-chain total supply for USDT and USDC across all five chains — Ethereum, Base, Arbitrum, Optimism, and Polygon — along with their current Chainlink oracle prices?”
Single stablecoin peg check
“What's DAI's current price deviation from $1 in basis points on Ethereum and Optimism? I want the Chainlink oracle reading and whether it's triggered the depeg flag.”
Technical details
Endpoint
POSThttps://onchain-health.mick8511.workers.dev/stablecoin-peg?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, on-chain stablecoin peg data with Chainlink oracle prices, basis-point deviation, and supply figures across multiple EVM chains in a single call. It covers all major stablecoins (USDC, USDT, DAI, USDe) and uses Multicall3 for efficiency. Prefer this over centralized exchange price feeds when you need verifiable on-chain oracle data for DeFi risk monitoring or alerting systems.
Side effects
- Chain or symbol not supported — returns error or empty data for that selection
- Chainlink oracle stale or unresponsive — may return stale price with age indicator
- RPC node unavailable for a given chain — that chain's data may be missing
- Invalid comma-separated chain/symbol values — may result in 400 or partial response
- Payment not processed (x402) — request rejected before data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chains | string | Comma list of chains (default all 5) |
| symbols | string | Comma list: USDC,USDT,DAI,USDe (default all) |
Tags
x402
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