← The evidence ledger
Evidence row 118472
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://perp-gap-api.perpgap.workers.dev/pm/scan
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 24bbbd55adc2e02f0ae8031d1b212d80ccfe74fcf9c81182276e0dcf9ae8a457
- Leaf
- 0xcd93ced5f963ad4952d372925517c9fc7bc99dee41f669bd8f960c923c0ed697
What was observed
{
"endpoints": [
[
"x402",
"https://perp-gap-api.perpgap.workers.dev/pm/scan"
]
],
"name": "Perp Gap API",
"owner_address": "0x2d82dcb9cc3a168d9ab25b62c1e33e278a51254f",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"payTo": "0x2d82dcB9cC3a168d9Ab25b62C1E33E278A51254F",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
},
"maxTimeoutSeconds": 120,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "5MoL8HNnvZUogGrqiF4T1StmAUpdU7ERA2GUJ7gLrEja",
"scheme": "exact"
}
],
"description": "Use when an agent wants a ranked list of the most mispriced liquid prediction markets on Hyperliquid right now, across all crypto and tokenized-stock binary price markets, in one call. Each row has model probability vs bid/ask, edge in pp, spread, depth and book age; empty and illiquid books are filtered out. For scanners, trading agents and daily briefings. Errors: 400 bad params, 404 no books (free, never charged), 402, 502. Data, not advice.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"max_spread_pp": "10",
"min_edge_pp": "2"
},
"type": "http"
},
"output": {
"example": {
"cache_updated_iso": "2026-10-17T13:10:56Z",
"count": 1,
"disclaimer": "Data, not financial advice. Not an offer or solicitation; Hyperliquid outcome markets are not available to US or other excluded persons.",
"filtered_out_empty_books": 73,
"filtered_out_illiquid": 27,
"filters": {
"kind": "all",
"limit": 20,
"max_spread_pp": 12,
"min_depth_usd": 50,
"min_edge_pp": 2
},
"generated_at_iso": "2026-10-17T13:11:39Z",
"label": "data, not advice",
"matched": 1,
"median_book_age_s": 77,
"method": "P(S_T > K) under a lognormal model with zero drift, S = live Hyperliquid perp mid, sigma = 7-day realized vol from Hyperliquid 1h candles (annualized x sqrt(8760)). No options data. Edges use executable bid/ask, never mid.",
"rows": [
{
"ask": 0.3658,
"ask_size": 186,
"asset": "SP500",
"best_edge_pp": 4.3,
"bid": 0.2534,
"bid_size": 180,
"book_age_s": 55,
"book_ts": "2026-10-17T13:10:43Z",
"depth_usd": {
"ask": 175.07,
"bid": 107.23,
"levels": 5,
"window_pp": 5
},
"edge_vs_ask_pp": -15.6,
"edge_vs_bid_pp": 4.3,
"expiry": "2026-10-23T20:00:00Z",
"hours_to_expiry": 150.81,
"kind": "stocks",
"liquid": true,
"mid": 0.3096,
"model_prob": 0.2102,
"outcome": 13371,
"perp": "xyz:SP500",
"question": "SP500 above 7740 at 2026-10-23 20:00:00 UTC",
"realized_vol_7d": 0.1073,
"settlement": {
"side": "Yes pays 1 USDC if the price is above the strike at expiry",
"source": "the Pyth US500 index price",
"window_seconds": 90
},
"signal": "yes_overpriced",
"spot_mid": 7653.45,
"spread_pp": 11.2,
"strike": 7740
}
],
"scanned": 110,
"source": "Hyperliquid info API (outcomeMeta, l2Book, allMids, candleSnapshot)",
"spot_live": true
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"kind": {
"default": "all",
"description": "Optional: crypto (BTC, ETH, HYPE, ZEC), stocks (trade.xyz stock, index and commodity perps) or all.",
"enum": [
"crypto",
"stocks",
"all"
],
"examples": [
"all"
],
"type": "string"
},
"limit": {
"default": "20",
"description": "Optional max rows, 1-50. Default 20.",
"examples": [
"10"
],
"pattern": "^\\d{1,2}$",
"type": "string"
},
"max_spread_pp": {
"default": "10",
"description": "Optional maximum bid-ask spread in percentage points. Default 10.",
"examples": [
"10"
],
"pattern": "^\\d+(\\.\\d+)?$",
"type": "string"
},
"min_depth_usd": {
"default": "50",
"description": "Optional minimum USDC depth within 5 pp of the touch on BOTH sides. Default 50.",
"examples": [
"100"
],
"pattern": "^\\d+(\\.\\d+)?$",
"type": "string"
},
"min_edge_pp": {
"default": "2",
"description": "Optional minimum edge in percentage points (model vs executable bid/ask). Default 2.",
"examples": [
"3"
],
"pattern": "^-?\\d+(\\.\\d+)?$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"description": "Error responses are JSON {error: string}: 400 bad min_edge_pp / max_spread_pp / min_depth_usd / limit / kind (free); 404 order-book cache empty (free, never charged); 402 payment required; 502 upstream error.",
"properties": {
"cache_updated_iso": {
"type": "string"
},
"closest": {
"description": "Only when rows is empty: the 3 liquid markets closest to min_edge_pp",
"items": {
"properties": {
"ask": {
"description": "Best Yes ask (probability, 0-1)",
"type": "number"
},
"ask_size": {
"type": "number"
},
"asset": {
"type": "string"
},
"best_edge_pp": {
"type": [
"number",
"null"
]
},
"bid": {
"description": "Best Yes bid (probability, 0-1)",
"type": "number"
},
"bid_size": {
"type": "number"
},
"book_age_s": {
"type": "integer"
},
"book_ts": {
"format": "date-time",
"type": "string"
},
"depth_usd": {
"description": "USDC notional resting within window_pp of the touch, top 5 levels",
"properties": {
"ask": {
"type": "number"
},
"bid": {
"type": "number"
},
"levels": {
"type": "integer"
},
"window_pp": {
"type": "number"
}
},
"type": "object"
},
"edge_vs_ask_pp": {
"description": "(model_prob - ask) x 100: > 0 means you could buy Yes below model value",
"type": [
"number",
"null"
]
},
"edge_vs_bid_pp": {
"description": "(bid - model_prob) x 100: > 0 means you could sell Yes above model value",
"type": [
"number",
"null"
]
},
"expiry": {
"format": "date-time",
"type": "string"
},
"hours_to_expiry": {
"type": "number"
},
"kind": {
"enum": [
"crypto",
"stocks"
],
"type": "string"
},
"liquid": {
"description": "spread <= 10 pp (scan: max_spread_pp) and >= $50 depth on both sides (scan: min_depth_usd)",
"type": "boolean"
},
"mid": {
"type": "number"
},
"model_prob": {
"description": "Model P(price > strike at expiry), 0-1",
"type": [
"number",
"null"
]
},
"outcome": {
"description": "Hyperliquid outcome id (Yes token = coin #<id>0)",
"type": "integer"
},
"perp": {
"description": "Underlying Hyperliquid perp, e.g. BTC or xyz:META",
"type": "string"
},
"question": {
"type": "string"
},
"realized_vol_7d": {
"type": [
"number",
"null"
]
},
"settlement": {
"properties": {
"side": {
"type": "string"
},
"source": {
"type": [
"string",
"null"
]
},
"window_seconds": {
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"signal": {
"enum": [
"yes_underpriced",
"yes_overpriced",
"fair",
"illiquid",
"no_model"
],
"type": "string"
},
"spot_mid": {
"type": [
"number",
"null"
]
},
"spread_pp": {
"type": "number"
},
"strike": {
"type": "number"
}
},
"required": [
"outcome",
"asset",
"strike",
"expiry",
"bid",
"ask",
"depth_usd",
"liquid"
],
"type": "object"
},
"type": "array"
},
"count": {
"type": "integer"
},
"disclaimer": {
"type": "string"
},
"filtered_out_empty_books": {
"type": "integer"
},
"filtered_out_illiquid": {
"type": "integer"
},
"filters": {
"type": "object"
},
"generated_at_iso": {
"format": "date-time",
"type": "string"
},
"label": {
"const": "data, not advice",
"type": "string"
},
"matched": {
"type": "integer"
},
"median_book_age_s": {
"type": [
"number",
"null"
]
},
"method": {
"type": "string"
},
"note": {
"type": "string"
},
"rows": {
"items": {
"properties": {
"ask": {
"description": "Best Yes ask (probability, 0-1)",
"type": "number"
},
"ask_size": {
"type": "number"
},
"asset": {
"type": "string"
},
"best_edge_pp": {
"type": [
"number",
"null"
]
},
"bid": {
"description": "Best Yes bid (probability, 0-1)",
"type": "number"
},
"bid_size": {
"type": "number"
},
"book_age_s": {
"type": "integer"
},
"book_ts": {
"format": "date-time",
"type": "string"
},
"depth_usd": {
"description": "USDC notional resting within window_pp of the touch, top 5 levels",
"properties": {
"ask": {
"type": "number"
},
"bid": {
"type": "number"
},
"levels": {
"type": "integer"
},
"window_pp": {
"type": "number"
}
},
"type": "object"
},
"edge_vs_ask_pp": {
"description": "(model_prob - ask) x 100: > 0 means you could buy Yes below model value",
"type": [
"number",
"null"
]
},
"edge_vs_bid_pp": {
"description": "(bid - model_prob) x 100: > 0 means you could sell Yes above model value",
"type": [
"number",
"null"
]
},
"expiry": {
"format": "date-time",
"type": "string"
},
"hours_to_expiry": {
"type": "number"
},
"kind": {
"enum": [
"crypto",
"stocks"
],
"type": "string"
},
"liquid": {
"description": "spread <= 10 pp (scan: max_spread_pp) and >= $50 depth on both sides (scan: min_depth_usd)",
"type": "boolean"
},
"mid": {
"type": "number"
},
"model_prob": {
"description": "Model P(price > strike at expiry), 0-1",
"type": [
"number",
"null"
]
},
"outcome": {
"description": "Hyperliquid outcome id (Yes token = coin #<id>0)",
"type": "integer"
},
"perp": {
"description": "Underlying Hyperliquid perp, e.g. BTC or xyz:META",
"type": "string"
},
"question": {
"type": "string"
},
"realized_vol_7d": {
"type": [
"number",
"null"
]
},
"settlement": {
"properties": {
"side": {
"type": "string"
},
"source": {
"type": [
"string",
"null"
]
},
"window_seconds": {
"type": [
"number",
"null"
]
}
},
"type": "object"
},
"signal": {
"enum": [
"yes_underpriced",
"yes_overpriced",
"fair",
"illiquid",
"no_model"
],
"type": "string"
},
"spot_mid": {
"type": [
"number",
"null"
]
},
"spread_pp": {
"type": "number"
},
"strike": {
"type": "number"
}
},
"required": [
"outcome",
"asset",
"strike",
"expiry",
"bid",
"ask",
"depth_usd",
"liquid"
],
"type": "object"
},
"type": "array"
},
"scanned": {
"type": "integer"
},
"source": {
"type": "string"
},
"spot_live": {
"type": "boolean"
}
},
"required": [
"rows",
"scanned",
"label",
"disclaimer"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-17T13:17:59.802Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-17T13:17:59.417Z"
},
"resource": "https://perp-gap-api.perpgap.workers.dev/pm/scan",
"serviceName": "Perp Gap API",
"tags": [
"Trading",
"Data",
"Prediction Markets",
"Signals",
"prediction-market-scanner"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Use when an agent wants a ranked list of the most mispriced liquid prediction markets on Hyperliquid right now, across all crypto and tokenized-stock binary price markets, in one call. Each row has model probability vs bid/ask, edge in pp, spread, depth and book age; empty and illiquid books are filtered out. For scanners, trading agents and daily briefings. Errors: 400 bad params, 404 no books (free, never charged), 402, 502. Data, not advice."
}What the leaf hashes
{"body":"24bbbd55adc2e02f0ae8031d1b212d80ccfe74fcf9c81182276e0dcf9ae8a457","id":118472,"kind":"listing","method":"baseline/1","observed_us":1793025613090317,"prev":null,"subject":"x402_bazaar:https://perp-gap-api.perpgap.workers.dev/pm/scan","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.