Roundhouse

Prediction-market odds

Live prediction-market odds for an event or topic: every matching market with each outcome's implied probability and decimal odds, best bid and ask, spread, book liquidity, 24h and 1wk volume, days to resolution, and a deterministic 0-100 edge/attention score with its flags named. Use when an agent needs the market-implied probability of an event - an election, a central-bank decision, a match, a price level - from a real order book rather than an opinion. Polymarket data, read live.

TradingLiveeip155:8453Exactvia facilitator:payAI
https://api.gadgethumans.com/prediction-odds
Prediction marketPolymarketOddsImplied probabilityBetting odds
Settlements · 30d
121↑ 72%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.28
Verified settled volume
122 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.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Machine traffic: pay $0.010 per request with x402",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.gadgethumans.com/prediction-odds",
      "extensions": {
        "bazaar": {
          "info": {
            "input": {
              "type": "http",
              "method": "GET",
              "queryParams": {
                "q": "gold price today"
              },
              "discoverable": true
            },
            "output": {
              "type": "json",
              "schema": {
                "type": "object",
                "properties": {
                  "ok": {
                    "type": "boolean"
                  }
                }
              },
              "example": {
                "ok": true
              }
            }
          },
          "schema": {
            "type": "object",
            "properties": {
              "input": {
                "type": "object",
                "properties": {
                  "queryParams": {
                    "type": "object",
                    "required": [
                      "q"
                    ],
                    "properties": {
                      "q": {
                        "type": "string",
                        "description": "Event or topic in the venue's own wording, e.g. 'Fed rate decision'"
                      },
                      "limit": {
                        "type": "integer",
                        "description": "Max markets (1-10, default 5)"
                      }
                    }
                  }
                }
              },
              "output": {
                "type": "object",
                "properties": {
                  "example": {
                    "ok": true
                  }
                }
              }
            }
          }
        }
      },
      "description": "Live prediction-market odds for an event or topic: every matching market with each outcome's implied probability and decimal odds, best bid and ask, spread, book liquidity, 24h and 1wk volume, days to resolution, and a deterministic 0-100 edge/attention score with its flags named. Use when an agent needs the market-implied probability of an event - an election, a central-bank decision, a match, a price level - from a real order book rather than an opinion. Polymarket data, read live.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "type": "object",
            "required": [
              "q"
            ],
            "properties": {
              "q": {
                "type": "string",
                "description": "Event or topic in the venue's own wording, e.g. 'Fed rate decision'"
              },
              "limit": {
                "type": "integer",
                "description": "Max markets (1-10, default 5)"
              }
            }
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "properties": {
              "ok": {
                "type": "boolean"
              }
            }
          },
          "example": {
            "ok": true
          }
        }
      },
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "7RDNyur52XauoJhwWnkvYjxygUoUv3ZPiosv8Ek5Suau",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "mimeType": "application/json",
      "resource": "https://api.gadgethumans.com/prediction-odds",
      "description": "Live prediction-market odds for an event or topic: every matching market with each outcome's implied probability and decimal odds, best bid and ask, spread, book liquidity, 24h and 1wk volume, days to resolution, and a deterministic 0-100 edge/attention score with its flags named. Use when an agent needs the market-implied probability of an event - an election, a central-bank decision, a match, a price level - from a real order book rather than an opinion. Polymarket data, read live.",
      "maxTimeoutSeconds": 300
    }
  ],
  "by_card": {
    "note": "Stripe checkout, no wallet required. The key is emailed and credits do not expire. Use this if you have no USDC.",
    "mcp_pro": {
      "per": "month",
      "url": "https://api.gadgethumans.com/subscribe?tier=mcp-pro",
      "usd": 2.99
    },
    "pack_500": {
      "url": "https://api.gadgethumans.com/buy-credits?pack=500",
      "usd": 5,
      "credits": 500
    },
    "pack_2500": {
      "url": "https://api.gadgethumans.com/buy-credits?pack=2500",
      "usd": 20,
      "credits": 2500
    },
    "week_pass": {
      "per": "week",
      "url": "https://api.gadgethumans.com/subscribe?tier=weekly",
      "usd": 1
    },
    "monthly_1500": {
      "url": "https://api.gadgethumans.com/buy-credits?pack=monthly-1500",
      "usd": 15,
      "credits_per_month": 1500
    }
  },
  "resource": {
    "url": "https://api.gadgethumans.com/prediction-odds",
    "tags": [
      "prediction market",
      "polymarket",
      "odds",
      "implied probability",
      "betting odds",
      "event odds",
      "election odds",
      "probability",
      "financial markets",
      "forecast",
      "kalshi",
      "yes no market"
    ],
    "iconUrl": "https://api.gadgethumans.com/favicon.ico",
    "mimeType": "application/json",
    "description": "Live prediction-market odds for an event or topic: every matching market with each outcome's implied probability and decimal odds, best bid and ask, spread, book liquidity, 24h and 1wk volume, days to resolution, and a deterministic 0-100 edge/attention score with its flags named. Use when an agent needs the market-implied probability of an event - an election, a central-bank decision, a match, a price level - from a real order book rather than an opinion. Polymarket data, read live.",
    "serviceName": "Prediction-market odds"
  },
  "free_tier": "Free tier: 100 requests/day per IP on the REST door (browser traffic), 5 calls/day per IP on the MCP door, then HTTP 402 with an x402 price. Pro: $2.99/mo — 500 calls/day.",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "gold price today"
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true
          }
        }
      },
      "schema": {
        "type": "object",
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "queryParams": {
                "type": "object",
                "required": [
                  "q"
                ],
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "Event or topic in the venue's own wording, e.g. 'Fed rate decision'"
                  },
                  "limit": {
                    "type": "integer",
                    "description": "Max markets (1-10, default 5)"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "example": {
                "ok": true
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2,
  "bulk_credits": {
    "pro": {
      "url": "https://api.gadgethumans.com/credits/buy/pro",
      "usdc": 25,
      "credits": 2750
    },
    "desk": {
      "url": "https://api.gadgethumans.com/credits/buy/desk",
      "usdc": 100,
      "credits": 12000
    },
    "note": "1 credit = $0.01. Pay a pack URL with x402 and the response returns an api_key you send as x-api-key on priced routes; calls then deduct credits instead of settling a payment each time.",
    "micro": {
      "url": "https://api.gadgethumans.com/credits/buy/micro",
      "usdc": 1,
      "credits": 100
    },
    "starter": {
      "url": "https://api.gadgethumans.com/credits/buy/starter",
      "usdc": 5,
      "credits": 500
    },
    "offer_url": "https://api.gadgethumans.com/credits"
  },
  "instructions": "Tool: Live prediction-market odds for an event or topic: every matching market with each outcome's implied probability and decimal odds, best bid and ask, spread, book liquidity, 24h and 1wk volume, days to resolution, and a deterministic 0-100 edge/attention score with its flags named. Use when an agent needs the market-implied probability of an event - an election, a central-bank decision, a match, a price level - from a real order book rather than an opinion. Polymarket data, read live.. Price: $0.010 USDC. Pay via x402: network eip155:8453, asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, payTo 0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34, facilitator https://facilitator.payai.network. Return payment in 'X-PAYMENT' header. Catalogue: https://api.gadgethumans.com/.well-known/x402"
}

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 0xe6C3…F3A34. The signed payment is good for 5 minutes.

Paid to
0xe6C3…F3A34
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": "0xe6C34b8E58c8BEA609415f4D0C1Ce01Da48F3A34",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "q": "gold price today"
        },
        "discoverable": true
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true
        }
      }
    },
    "schema": {
      "type": "object",
      "properties": {
        "input": {
          "type": "object",
          "properties": {
            "queryParams": {
              "type": "object",
              "required": [
                "q"
              ],
              "properties": {
                "q": {
                  "type": "string",
                  "description": "Event or topic in the venue's own wording, e.g. 'Fed rate decision'"
                },
                "limit": {
                  "type": "integer",
                  "description": "Max markets (1-10, default 5)"
                }
              }
            }
          }
        },
        "output": {
          "type": "object",
          "properties": {
            "example": {
              "ok": true
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-11-09 12:34Z
Last indexed by Roundhouse
2026-11-09 15:45Z
Last enriched (probe, favicon, geo)
2026-11-03 03:46Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 Prediction-market odds 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-market%20odds'
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.gadgethumans.com/prediction-odds, 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.