Roundhouse

OutcomeScout

Turn a news headline into the matching Polymarket prediction markets to trade. One call returns the top markets ranked by relevance, each with live odds/implied probability, 24h drift, spread, on-book liquidity, volume, resolution date, and a ready bet link. Use when a trading agent reacts to breaking news and needs the tradeable market instantly. $0.01 USDC on Base.

TradingLiveeip155:8453Exactvia cdp
https://outcomescout.vercel.app/api/v1/news-to-markets
Prediction-marketsPolymarketNews-to-marketsNews-tradingEvent-contracts
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$0.21
Verified settled volume
21 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-07-14 08:02Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF0EfAfeD3BED84b12dc89Ba80E62131FAACE0eCD

The 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.

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 0xF0Ef…E0eCD. The signed payment is good for 5 minutes.

Paid to
0xF0Ef…E0eCD
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": "0xF0EfAfeD3BED84b12dc89Ba80E62131FAACE0eCD",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "headline": "Trump pushes Russia and Ukraine toward a ceasefire"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "headline": "Trump pushes Russia and Ukraine toward a ceasefire",
          "cost_paid": "$0.01 USDC",
          "fetched_at": "2026-06-07T12:00:00.000Z",
          "request_ms": 240,
          "top_markets": [
            {
              "rank": 1,
              "bet_link": "https://polymarket.com/event/russia-ukraine-ceasefire-2026",
              "volume_24h": 125000,
              "event_title": "Russia x Ukraine ceasefire in 2026?",
              "outcome_type": "binary",
              "spread_cents": 2,
              "current_price": 0.34,
              "drift_24h_pct": 5.1,
              "primary_label": "Yes",
              "collapsed_count": 0,
              "market_question": "Will Russia and Ukraine agree to a ceasefire before 2027?",
              "relevance_score": 0.92,
              "outcomes_in_event": 2,
              "days_to_resolution": 208,
              "size_at_best_ask_usd": 4200,
              "max_safe_trade_3pct_usd": 1800
            }
          ]
        }
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "headline"
              ],
              "properties": {
                "headline": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 5
                },
                "min_liquidity_usd": {
                  "type": "number",
                  "exclusiveMinimum": 0
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-07-14 08:02Z
Last indexed by Roundhouse
2026-07-31 06:10Z
Last enriched (probe, favicon, geo)
2026-09-21 18:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
Report

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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service OutcomeScout 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=OutcomeScout'
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://outcomescout.vercel.app/api/v1/news-to-markets, 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.