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Stablecoin Peg Safety Decision API
x402
Stablecoin Peg Safety Decision API is a paid API for AI agents from peg.weatherriskapi.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Returns a SAFE, CAUTION, or AVOID decision for USDC or USDT based on live Chainlink price feed deviation from $1 peg, using caller-defined thresholds.
Price / call$0.005
Success—
StatusUnknown
How this service works
Check USDC or USDT peg risk before a Base treasury or payment-asset decision. Send asset, maxDeviationBps and maxDataAgeSeconds to receive SAFE, CAUTION or AVOID, deviation, oracle freshness and reasons from official Chainlink feeds. Deterministic thresholds avoid interpreting raw prices; this checks peg deviation and freshness, not liquidity, redeemability or total stablecoin safety. Price: 0.005 USDC per successful result. Not financial advice.
Output
A JSON object containing the peg safety decision (SAFE, CAUTION, or AVOID), the current USD price, deviation in basis points and direction (ABOVE/BELOW), data freshness status (FRESH/STALE), confidence level, human-readable reasons explaining the decision, and methodology thresholds used. Stale or unavailable data fails closed without charge.
Example use cases
Pre-trade peg check for DeFi agent
“Before executing that USDC swap, verify USDC is holding its peg — flag it as AVOID if it's more than 100 basis points off $1, and reject any Chainlink data older than 5 minutes.”
USDT risk gate for payment pipeline
“I'm about to settle a batch of USDT payments — can you check if USDT is SAFE right now using a max deviation of 75 basis points and a freshness window of 30 minutes?”
Stablecoin health dashboard alert
“Check whether USDC is showing any depeg stress on Base — use a 50 bps safe threshold and 100 bps caution threshold, and only trust Chainlink data from the last 15 minutes.”
Technical details
Endpoint
POSThttps://peg.weatherriskapi.com/v1/stablecoin/peg-safety?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs a deterministic, threshold-based peg safety signal — not just a raw price — before taking action on USDC or USDT on Base Mainnet. Ideal when you want caller-controlled SAFE/CAUTION/AVOID classification with configurable deviation and staleness limits, backed by Chainlink's canonical oracle. Prefer over raw price feeds when you need an opinionated go/no-go decision with auditable reasoning rather than a number to interpret yourself.
Side effects
- Chainlink data exceeds maxDataAgeSeconds — fails closed, returns error, no charge
- Chainlink feed unavailable or reverted — fails closed without settlement
- Invalid asset enum value — request rejected
- maxDeviationBps or maxDataAgeSeconds out of allowed range — validation error
- Network/connectivity issues reaching Base Mainnet — service unavailable error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| asset | string | Stablecoin to evaluate using its official Chainlink USD feed on Base Mainnet. |
| maxDeviationBps | integer | Largest absolute deviation from $1, in basis points, that the caller considers SAFE. |
| maxDataAgeSeconds | integer | Maximum acceptable age of the Chainlink round. Stale data fails closed and is not charged. |
Output
Schema · Response
{
"type": "json",
"example": {
"asset": "USDC",
"source": {
"pair": "USDC / USD",
"chainId": 8453,
"network": "Base Mainnet",
"provider": "Chainlink Data Feeds",
"cacheStatus": "MISS"
},
"reasons": [
"USDC/USD is 1 bps below the $1 peg.",
"Decision threshold: SAFE <= 50 bps, CAUTION <= 100 bps, AVOID > 100 bps.",
"Chainlink round age is 120s, within the requested 86400s maximum."
],
"decision": "SAFE",
"priceUsd": "0.9999431",
"direction": "BELOW",
"freshness": "FRESH",
"confidence": "HIGH",
"disclaimer": "Decision support only; not financial advice, a guarantee of redeemability, or a substitute for independent risk controls.",
"methodology": {
"pegUsd": "1.00",
"rounding": "conservative-ceiling",
"avoidAboveBps": 100,
"safeAtOrBelowBps": 50,
"cautionAtOrBelowBps": 100
},
"deviationBps": 1,
"dataAgeSeconds": 120,
"maxDeviationBps": 50,
"maxDataAgeSeconds": 86400
}
}Tags
x402
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