api.predictionmarketdata.io
Search, filter, and sort prediction markets across exchanges.
Offering
- Provider
- api.predictionmarketdata.io
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Prediction Markets
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.predictionmarketdata.io/prediction-markets- MIME type
- Not provided
- First seen
- 2026-10-16T01:51:10.599Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000",
"payTo": "0x995c0abdcd2ad76548e5f7deb54d32549b2b781f"
}
]Observed health
- Status
- Healthy
- Latest latency
- 129 ms
- Average latency
- 994 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"type": "object",
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"type": "string",
"enum": [
"GET"
]
},
"queryParams": {
"type": "object",
"properties": {
"search": {
"type": "string",
"description": "Free-text query across market and event names."
},
"searchString": {
"type": "string",
"description": "Legacy alias for search; prefer search."
},
"event_ticker": {
"type": "string",
"description": "Exact event identifier (from a prior /prediction-markets response)."
},
"entity_code": {
"type": "string",
"description": "Exchange filter. Common: KALSHI, POLYMARK, GMNI."
},
"status": {
"type": "string",
"description": "Market status. Open is the safest default."
},
"outcome_type": {
"type": "string",
"description": "Outcome model. Common: Binary, Multi."
},
"pmcs_category": {
"type": "string",
"description": "Top-level PMCS category code from /prediction-markets/taxonomy."
},
"pmcs_supersector": {
"type": "string",
"description": "PMCS supersector code from /prediction-markets/taxonomy."
},
"sort_by": {
"type": "string",
"description": "Sort key, e.g. total_volume_24hr, total_open_interest_usd, end_ts."
},
"sort_dir": {
"type": "string",
"description": "Sort direction: asc or desc."
},
"limit": {
"type": "string",
"description": "Maximum number of events to return."
},
"offset": {
"type": "string",
"description": "Zero-based pagination offset."
},
"volume_min": {
"type": "string",
"description": "Minimum total volume filter."
},
"volume_max": {
"type": "string",
"description": "Maximum total volume filter."
},
"volume_1hr_min": {
"type": "string",
"description": "Minimum 1-hour volume filter."
},
"volume_1hr_max": {
"type": "string",
"description": "Maximum 1-hour volume filter."
},
"open_interest_min": {
"type": "string",
"description": "Minimum open interest (USD)."
},
"open_interest_max": {
"type": "string",
"description": "Maximum open interest (USD)."
},
"trade_count_min": {
"type": "string",
"description": "Minimum trade count."
},
"trade_count_max": {
"type": "string",
"description": "Maximum trade count."
},
"queryCriteria": {
"type": "string",
"description": "Legacy advanced query field; prefer search."
}
}
}
},
"required": [
"type",
"method"
],
"additionalProperties": false
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"entity_code": {
"description": "Exchange filter. Common: KALSHI, POLYMARK, GMNI.",
"type": "string"
},
"event_ticker": {
"description": "Exact event identifier (from a prior /prediction-markets response).",
"type": "string"
},
"limit": {
"description": "Maximum number of events to return.",
"type": "string"
},
"offset": {
"description": "Zero-based pagination offset.",
"type": "string"
},
"open_interest_max": {
"description": "Maximum open interest (USD).",
"type": "string"
},
"open_interest_min": {
"description": "Minimum open interest (USD).",
"type": "string"
},
"outcome_type": {
"description": "Outcome model. Common: Binary, Multi.",
"type": "string"
},
"pmcs_category": {
"description": "Top-level PMCS category code from /prediction-markets/taxonomy.",
"type": "string"
},
"pmcs_supersector": {
"description": "PMCS supersector code from /prediction-markets/taxonomy.",
"type": "string"
},
"queryCriteria": {
"description": "Legacy advanced query field; prefer search.",
"type": "string"
},
"search": {
"description": "Free-text query across market and event names.",
"type": "string"
},
"searchString": {
"description": "Legacy alias for search; prefer search.",
"type": "string"
},
"sort_by": {
"description": "Sort key, e.g. total_volume_24hr, total_open_interest_usd, end_ts.",
"type": "string"
},
"sort_dir": {
"description": "Sort direction: asc or desc.",
"type": "string"
},
"status": {
"description": "Market status. Open is the safest default.",
"type": "string"
},
"trade_count_max": {
"description": "Maximum trade count.",
"type": "string"
},
"trade_count_min": {
"description": "Minimum trade count.",
"type": "string"
},
"volume_1hr_max": {
"description": "Maximum 1-hour volume filter.",
"type": "string"
},
"volume_1hr_min": {
"description": "Minimum 1-hour volume filter.",
"type": "string"
},
"volume_max": {
"description": "Maximum total volume filter.",
"type": "string"
},
"volume_min": {
"description": "Minimum total volume filter.",
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}