Historical measurement dataset for Kalshi event contracts
Historical measurement dataset for Kalshi event contracts. Records the mean difference between fill price and prevailing quote at time of fill, in cents per contract, grouped by time to resolution, across 147k+ observations. Aggregate and 24-hour lagged; never per-contract, identical for every caller. Observed historical data only. Not trading advice - full notice in response.
Answers HTTP 503 without x402 payment termsour last check, 2026-09-24
0 of 1checks answered this week
n/amedian answer time
$0.02listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://intel.opusai.work/v1/triad
| Category | Market data |
|---|---|
| Provider host | intel.opusai.work |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | no x402 terms | 503 | 994 ms |
Example input (from the provider)
{
"method": "GET",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"as_of": {
"description": "Unix epoch of the snapshot.",
"type": "integer"
},
"disclaimer": {
"type": "string"
},
"edge_by_lifecycle": {
"additionalProperties": {
"properties": {
"edge_mean_cents": {
"type": "number"
},
"n": {
"description": "Observations in bucket.",
"type": "integer"
},
"positive_pct": {
"description": "Percent of observations with positive edge.",
"type": "number"
}
},
"required": [
"n",
"edge_mean_cents",
"positive_pct"
],
"type": "object"
},
"description": "Buckets keyed by time to contract resolution.",
"type": "object"
},
"lag_hours": {
"description": "Hours the data is deliberately lagged.",
"type": "number"
},
"measure": {
"description": "What the statistic measures.",
"type": "string"
},
"overall": {
"description": "Same three fields, all buckets combined.",
"properties": {
"edge_mean_cents": {
"type": "number"
},
"n": {
"type": "integer"
},
"positive_pct": {
"type": "number"
}
},
"type": "object"
},
"schema": {
"type": "string"
},
"units": {
"description": "Unit of edge_mean_cents.",
"type": "string"
},
"venue": {
"description": "Exchange observed.",
"type": "string"
}
},
"required": [
"venue",
"edge_by_lifecycle",
"overall",
"lag_hours",
"as_of"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}