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Stablecoin Time-Weighted Peg Deviation
x402
Stablecoin Time-Weighted Peg Deviation is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Computes the time-weighted absolute peg deviation across a window of price samples to summarize depeg severity.
Price / call$0.001
Success—
StatusUnknown
How this service works
Time-weighted absolute peg deviation over samples. Call when summarizing depeg severity over a sample window. Returns tw_abs_deviation as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
Returns a JSON object containing tw_abs_deviation, a single deterministic float representing the time-weighted mean absolute deviation of the supplied price samples from the target peg price. Computation is performed locally with pure math — no external data sources are consulted.
Example use cases
Post-depeg severity audit
“We had a depeg event on our stablecoin last week — the sampled prices were [0.97, 0.98, 0.99, 0.985, 0.992, 0.995] against a $1.00 peg. Can you calculate the time-weighted absolute deviation so I can include a single severity number in our incident report?”
Real-time stablecoin risk dashboard
“I'm building a risk dashboard and need to summarize peg quality for DAI over the last 10 samples: [1.001, 0.999, 1.002, 0.998, 1.000, 0.999, 1.001, 0.997, 1.003, 0.998]. Can you give me the tw_abs_deviation from $1.00 with even weights so I can display it as a health metric?”
Weighted depeg metric for uneven sampling
“I have 5 stablecoin price readings taken at uneven intervals — prices [0.993, 0.996, 1.001, 0.998, 1.002] with time weights [0.1, 0.3, 0.2, 0.25, 0.15] — and I want the time-weighted absolute deviation from a $1.00 peg so I can compare depeg severity across different assets fairly.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/peg-tw-deviationWhen to prefer
Choose this endpoint when you need a single deterministic, time-weighted summary statistic of peg deviation across a batch of price samples — for example in post-mortem reports, risk dashboards, or compliance summaries. It is ideal when you already have price samples in hand and need pure local computation with no live market feed dependency. Prefer alternatives if you need live price fetching, real-time monitoring, or continuous alerting rather than a one-shot aggregation.
Side effects
- Missing or empty prices array returns a validation error
- Mismatched lengths between prices and weights arrays causes an error
- Non-numeric values in prices or weights cause a parsing/validation error
- Peg value not supplied defaults or errors depending on server behavior
- Malformed JSON body returns a 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| peg | number | Target peg price (usually 1.0) |
| prices | array | Market prices / samples depending on tool |
| weights | array | Optional sample weights |
Output
Schema · Response
{
"type": "json",
"example": {
"schema": "delx/util-peg-tw-deviation/v1",
"tw_abs_deviation": 0.005000000000000004
}
}Tags
x402
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