prediction-search
Cross-venue prediction-market search: one query returns a ranked list of NORMALIZED markets from Polymarket (real-money) and Manifold (play-money) under one schema — implied probability, outcomes, volume, liquidity, close date, status, money_type and a link-back. One call instead of hitting each venue's API and reconciling their shapes.
SearchLiveeip155:8453Exactvia cdp
Prediction-marketsPolymarketManifoldForecastingOdds
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$42.97
Verified settled volume
3,793 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-19 15:59Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.agentstools.dev/prediction/search",
"tags": [
"prediction-markets",
"polymarket",
"manifold",
"forecasting",
"odds",
"probability",
"search",
"markets",
"sentiment",
"research"
],
"mimeType": "application/json",
"description": "Cross-venue prediction-market search: one query returns a ranked list of NORMALIZED markets from Polymarket (real-money) and Manifold (play-money) under one schema — implied probability, outcomes, volume, liquidity, close date, status, money_type and a link-back. One call instead of hitting each venue's API and reconciling their shapes.",
"serviceName": "prediction-search"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 10,
"query": "election"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"query": "election",
"markets": [
{
"link": "https://polymarket.com/event/x-2028",
"venue": "polymarket",
"status": "open",
"volume": 1200000,
"question": "Will X win the 2028 election?",
"close_date": "2028-11-07T00:00:00Z",
"money_type": "real",
"implied_prob": 0.41,
"implied_outcome": "Yes"
}
],
"summary": {
"errors": [],
"venues_ok": 2,
"venues_failed": 0
},
"disclaimer": "Prediction-market data, not financial advice."
}
}
},
"schema": {
"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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"maximum": 25,
"minimum": 1,
"description": "Max markets to return (default 15, cap 25)"
},
"query": {
"type": "string",
"description": "Topic or free-text query to search markets for"
},
"venue": {
"enum": [
"polymarket",
"manifold",
"metaculus"
],
"type": "string",
"description": "Restrict to one venue by key"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.01USDC≈ $0.01 USD
on Base · exact scheme
Pay 0.01 USDC on Base to 0xF22e…Ff493. The signed payment is good for 5 minutes.
- Paid to
- 0xF22e…Ff493
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 10,
"query": "election"
}
},
"output": {
"type": "json",
"example": {
"count": 1,
"query": "election",
"markets": [
{
"link": "https://polymarket.com/event/x-2028",
"venue": "polymarket",
"status": "open",
"volume": 1200000,
"question": "Will X win the 2028 election?",
"close_date": "2028-11-07T00:00:00Z",
"money_type": "real",
"implied_prob": 0.41,
"implied_outcome": "Yes"
}
],
"summary": {
"errors": [],
"venues_ok": 2,
"venues_failed": 0
},
"disclaimer": "Prediction-market data, not financial advice."
}
}
},
"schema": {
"type": "object",
"$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",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"maximum": 25,
"minimum": 1,
"description": "Max markets to return (default 15, cap 25)"
},
"query": {
"type": "string",
"description": "Topic or free-text query to search markets for"
},
"venue": {
"enum": [
"polymarket",
"manifold",
"metaculus"
],
"type": "string",
"description": "Restrict to one venue by key"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-19 15:59Z
- Last indexed by Roundhouse
- 2026-09-24 15:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-22 10:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service prediction-search and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=prediction-search' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.agentstools.dev/prediction/search, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.