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DEX Spread Anomaly Feed
x402
DEX Spread Anomaly Feed is a paid API for AI agents from api.agentfeeds.jp, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns DEX trading pair spread anomaly events where the 1-minute absolute spread exceeded the trailing 30-day 99th-percentile baseline, with descriptive statistics.
Price / call$0.005
Success—
StatusUnknown
How this service works
Spread anomaly events where 1-minute |spread| exceeded the trailing 30-day p99 baseline. Descriptive statistics only; not investment advice. Free 15-min-delayed sample: /v1/sample/dex.spread_anomalies
Output
A list of spread anomaly events for the requested trading pair, each representing a 1-minute interval where the absolute spread exceeded the trailing 30-day 99th-percentile threshold, with descriptive statistics per event. Up to 500 events can be returned per call, optionally filtered by pair and start timestamp.
Example use cases
Example prompt
“Show me the latest 50 DEX spread anomaly events for the ETH/USDC pair since 2025-01-01 — I want to see cases where the 1-minute spread blew past the 30-day p99 baseline.”
Technical details
Endpoint
GEThttps://api.agentfeeds.jp/v1/dex/spreads/anomaliesWhen to prefer
Use this endpoint when you need to identify specific historical moments of abnormal DEX spread activity relative to a statistical baseline, particularly for market surveillance, anomaly detection pipelines, or post-hoc analysis of liquidity stress events on decentralized exchanges. Prefer over the bulk historical window endpoint when you want pre-filtered anomaly events rather than raw 1-minute statistics.
Side effects
- Invalid or unsupported pair symbol returns empty results or 400 error
- since timestamp in wrong format returns 400 validation error
- limit value outside 1-500 range returns 400 error
- Payment not provided or invalid returns 402 Payment Required
- Upstream data unavailability may return 503 or stale data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": [
{
"id": 1,
"ts": "2026-07-19T03:09:00Z",
"note": "12 samples in minute",
"pair": "WETH/USDC",
"venue_a": "uniswap_v3_base_005",
"venue_b": "aerodrome_base",
"spread_bps": 14.2,
"p99_baseline": 9.8
}
],
"kind": "factual_data",
"product": "dex.spread_anomalies"
}
}Tags
x402
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