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
Prediction-marketsPolymarketNews-to-marketsNews-tradingEvent-contracts
Calls · 30d
7↓ 3.8%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$0.31
Verified settled volume
31 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.
6
Calls · 30d
Upstream's own call count for this endpoint, not ours.
5
Unique payers · 30d
Last called 2026-11-04 03:40Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF0EfAfeD3BED84b12dc89Ba80E62131FAACE0eCD

The wallet the 402 directs payment to. Its full payment record 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.

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Payer PayeeChainAmountx402RouteAgeTxn hash
0x4c29…94940xf0ef…0ecdBaseBase$0.01100%coinbase9d ago0xcdf3bf…3c583f
0x54e1…f4e00xf0ef…0ecdBaseBase$0.01100%coinbase12d ago0x565541…a82aa1
0xa1d1…19780xf0ef…0ecdBaseBase$0.01100%coinbase13d ago0x8b2093…19b252
0xa128…a3f10xf0ef…0ecdBaseBase$0.01100%coinbase18d ago0xeb878e…cd4b04
0x7722…5e4a0xf0ef…0ecdBaseBase$0.01100%coinbase20d ago0xf6eeb0…b89741
0xa1d1…19780xf0ef…0ecdBaseBase$0.01100%coinbase28d ago0x89f547…38065d
0xec2a…d0340xf0ef…0ecdBaseBase$0.01100%coinbase33d ago0x78ff0a…056062
0x6a0b…45180xf0ef…0ecdBaseBase$0.01100%coinbase36d ago0x68e104…6b5ac5
0xc9c7…16700xf0ef…0ecdBaseBase$0.01100%coinbase37d ago0x777765…1d7310
0x6031…c2d10xf0ef…0ecdBaseBase$0.01100%coinbase39d ago0x1eab42…9ef57b
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase110d ago0x63efc6…3fa164
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase116d ago0x38105c…7cb874
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase117d ago0x2fd01b…de91d2
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase118d ago0x03d15f…cb24cf
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase120d ago0x59f7c7…71da86
0x4a0b…f6650xf0ef…0ecdBaseBase$0.01100%coinbase122d ago0x09c867…5f8b4b
0x7e57…2f090xf0ef…0ecdBaseBase$0.01100%coinbase128d ago0xa49f22…fd6176
0xf956…9faa0xf0ef…0ecdBaseBase$0.01100%coinbase128d ago0x7532da…7cf872
0x9cc4…b1760xf0ef…0ecdBaseBase$0.01100%coinbase135d ago0x90005e…6f42c3
0x4a0b…f6650xf0ef…0ecdBaseBase$0.01100%coinbase142d ago0x87e36c…b5f692
0xec69…6fdf0xf0ef…0ecdBaseBase$0.01100%coinbase157d ago0xdcbe2a…d442ed
0xec69…6fdf0xf0ef…0ecdBaseBase$0.01100%coinbase157d ago0xfd1ee0…c58481
0xec69…6fdf0xf0ef…0ecdBaseBase$0.01100%coinbase158d ago0x4bbcb5…87150a
0xec69…6fdf0xf0ef…0ecdBaseBase$0.01100%coinbase158d ago0xc8795e…8a62b9
0xec69…6fdf0xf0ef…0ecdBaseBase$0.01100%coinbase158d ago0xd87dd8…8b6ee8

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.

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
2026-11-04 03:40Z
Last indexed by Roundhouse
2026-11-13 13:10Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.