{"uid":"cap_NoVZ-I8LxX-bnN-AbND_k","slug":"dex-spread-anomaly-feed-6d17d44a","name":"DEX Spread Anomaly Feed","description":"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","url":"https://api.agentfeeds.jp/v1/dex/spreads/anomalies","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"pair":{"type":"string"},"limit":{"type":"integer","description":"1-500, default 100"},"since":{"type":"string","description":"ISO timestamp filter"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"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"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oeI8X_IyaUA_YTOqLDiYx","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns DEX trading pair spread anomaly events where the 1-minute absolute spread exceeded the trailing 30-day 99th-percentile baseline, with descriptive statistics.","exampleAgentPrompt":"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.","exampleUseCases":null,"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:55:43.390Z","isFirstParty":false}