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Stablecoin Monitor API
x402
Stablecoin Monitor API is a paid API for AI agents from stablecoins.x402utils.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Returns real-time supply, price, and peg deviation data for a queried stablecoin, plus de-peg alert status.
Price / call$0.001
Success—
StatusUnknown
How this service works
Stablecoin monitor for agents: supply, price and peg deviation for every tracked stablecoin, plus a de-peg alert list. Paid per call via x402 (USDC on Base).
Output
A JSON object with an array of matches, each containing the stablecoin symbol, current price (in USD), circulating supply, and peg deviation percentage. If de-peg alerts exist, they are included in the response.
Example use cases
Real-time de-peg risk check
“Is USDT currently de-pegged or showing any unusual deviation from $1? Give me the latest price and peg deviation percentage.”
Stablecoin supply monitoring
“What's the current circulating supply of DAI, and is it trading at its expected dollar peg?”
DeFi risk alert workflow
“Check FRAX's price and peg deviation right now — I need to know if it's more than 0.5% off its dollar peg before I execute this trade.”
Technical details
Endpoint
GEThttps://stablecoins.x402utils.workers.dev/v1/stablecoin?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time stablecoin-specific data including peg deviation and de-peg alerts, especially in DeFi risk monitoring, automated trading, or compliance workflows. Prefer it over generic crypto price APIs when peg health and circulating supply are required together in a single call.
Side effects
- Unknown or unsupported stablecoin symbol returns empty matches array
- Missing required 'symbol' query parameter returns a 400 or validation error
- Payment failure via x402 protocol returns 402 Payment Required
- Rate limiting or quota exhaustion may return 429 Too Many Requests
- Network or upstream data source outage may return 500 or stale data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"matches": [
{
"price": 1,
"symbol": "USDC",
"circulating": 75000000000,
"deviation_pct": 0
}
]
}
}Tags
x402
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