Blended event probability across Kalshi and Polymarket for one market — Liquidit
Blended event probability across Kalshi and Polymarket for one market — Liquidity-weighted blend of venue implied probabilities for a canonical market slug, with per-venue detail, cross-venue divergence, and the last 1h move. Resolved markets return 410 RESOLVED with the outcome. Find slugs via /v1/probability/search.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
582 msmedian answer time
$0.02listed price per call
$0.02price 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://x402-factory.com/v1/probability/:slug
| Category | Market data |
|---|---|
| Provider host | x402-factory.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.02 | 582 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"slug": "fed-rate-cut-2026-09"
},
"queryParams": {},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"properties": {
"slug": {
"pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$",
"type": "string"
}
},
"required": [
"slug"
],
"type": "object"
},
"queryParams": {
"properties": {
"venue": {
"default": "blend",
"enum": [
"kalshi",
"polymarket",
"blend"
],
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"additionalProperties": false,
"properties": {
"category": {
"type": "string"
},
"divergence": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"last_move_1h": {
"type": "number"
},
"per_venue": {
"items": {
"additionalProperties": false,
"properties": {
"implied_p": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"liquidity_score": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"market_id": {
"type": "string"
},
"venue": {
"enum": [
"kalshi",
"polymarket"
],
"type": "string"
},
"volume_24h_usd": {
"type": "number"
}
},
"required": [
"venue",
"market_id",
"implied_p",
"volume_24h_usd",
"liquidity_score"
],
"type": "object"
},
"type": "array"
},
"probability": {
"maximum": 1,
"minimum": 0,
"type": "number"
},
"question": {
"type": "string"
},
"resolution_criteria_summary": {
"type": "string"
},
"resolution_date": {
"type": "string"
},
"slug": {
"type": "string"
}
},
"required": [
"slug",
"question",
"probability",
"per_venue",
"divergence",
"category",
"resolution_date",
"resolution_criteria_summary",
"last_move_1h"
],
"type": "object"
},
"meta": {
"type": "object"
}
},
"required": [
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}