{
  "x402Version": 2,
  "id": 26401,
  "slug": "26401",
  "resource": "https://x402tap.com/api/prediction-arb",
  "description": "Find prediction-market questions priced differently on Polymarket vs. Kalshi — a cross-platform divergence signal built from data no single-platform competitor has",
  "type": "http",
  "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1787176646/bazaar-icons/604fd26fe71fd7f4.png",
  "resourceType": "Beauty & Personal Care",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:42161",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "50000",
      "amountUsd": 0.05,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "limit": "5",
            "minDivergencePct": "10"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "count": 1,
            "matches": [
              {
                "cheaperYesOn": "kalshi",
                "divergencePct": 12.4,
                "kalshi": {
                  "subTitle": null,
                  "ticker": "KXFED-99",
                  "title": "Fed cuts rates at September FOMC meeting?",
                  "yesProbability": 0.496
                },
                "matchScore": 0.5,
                "polymarket": {
                  "question": "Will the Fed cut rates in September?",
                  "slug": "example-market",
                  "volume24hr": 45678.9,
                  "yesProbability": 0.62
                }
              }
            ],
            "minDivergencePct": 10,
            "note": "Matches are found by keyword-overlap similarity...",
            "query": null
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "limit": {
                    "description": "Max matches to return, 1-25 (default 10)",
                    "type": "string"
                  },
                  "minDivergencePct": {
                    "description": "Minimum probability-point divergence to include, 0-100 (default 5)",
                    "type": "string"
                  },
                  "q": {
                    "description": "Optional keyword filter on the matched question text",
                    "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"
      }
    },
    "offer-receipt": {
      "info": {
        "offers": [
          {
            "acceptIndex": 0,
            "format": "eip712",
            "payload": {
              "amount": "50000",
              "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "network": "eip155:8453",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/prediction-arb",
              "scheme": "exact",
              "validUntil": 1791505384,
              "version": 1
            },
            "signature": "0xdb7b90416004fdd302ae7ab466284946cff0bd360a53ce280cd9e959b23475127190f17b3f9f904e2c620e17400ad7b712f212e5c5f7887072d2783672c6061a1b"
          },
          {
            "acceptIndex": 1,
            "format": "eip712",
            "payload": {
              "amount": "50000",
              "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
              "network": "eip155:137",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/prediction-arb",
              "scheme": "exact",
              "validUntil": 1791505384,
              "version": 1
            },
            "signature": "0x12dd93fa1d477356e47f9534c6e05b6874728fb0b04a9b75c3b1656cf9b5196f4d47fa7a3dcde652652e559c14d65d2fc509eaa97f67d6c383bf9c5fced5706b1c"
          },
          {
            "acceptIndex": 2,
            "format": "eip712",
            "payload": {
              "amount": "50000",
              "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
              "network": "eip155:42161",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/prediction-arb",
              "scheme": "exact",
              "validUntil": 1791505384,
              "version": 1
            },
            "signature": "0x542fe2e056b136ad12d4c68df1bc43035f6fbbeb7b9f27e5df15a3667d1b97e62cb985fa476e07bcd6d745a4776cbbdd977f60323b64d038aa38fceed68b1a411b"
          },
          {
            "acceptIndex": 3,
            "format": "eip712",
            "payload": {
              "amount": "50000",
              "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
              "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
              "resourceUrl": "https://x402tap.com/api/prediction-arb",
              "scheme": "exact",
              "validUntil": 1791505384,
              "version": 1
            },
            "signature": "0xed3c1759a44042118e1d568ef222c873b4942d65a8c13406dae21ec6e555ee14621a4101d971513d4c78f3db86f95e5ddc590184e6f06181574cd95c06ea91101c"
          }
        ]
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "offers": {
            "items": {
              "properties": {
                "acceptIndex": {
                  "type": "integer"
                },
                "format": {
                  "type": "string"
                },
                "payload": {
                  "properties": {
                    "amount": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "network": {
                      "type": "string"
                    },
                    "payTo": {
                      "type": "string"
                    },
                    "resourceUrl": {
                      "type": "string"
                    },
                    "scheme": {
                      "type": "string"
                    },
                    "validUntil": {
                      "type": "integer"
                    },
                    "version": {
                      "type": "integer"
                    }
                  },
                  "required": [
                    "version",
                    "resourceUrl",
                    "scheme",
                    "network",
                    "asset",
                    "payTo",
                    "amount"
                  ],
                  "type": "object"
                },
                "signature": {
                  "type": "string"
                }
              },
              "required": [
                "format",
                "signature"
              ],
              "type": "object"
            },
            "type": "array"
          }
        },
        "required": [
          "offers"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "prediction-markets",
    "polymarket",
    "kalshi",
    "arbitrage",
    "crypto",
    "bazaar",
    "offer-receipt"
  ],
  "sourceHost": "x402tap.com",
  "lastUpdated": "2026-10-09T00:18:04.112Z",
  "quality": {
    "calls30d": 5,
    "uniquePayers30d": 5,
    "lastCalledAt": "2026-10-09T00:18:03.911Z"
  },
  "metadata": {
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1787176646/bazaar-icons/604fd26fe71fd7f4.png",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "5",
              "minDivergencePct": "10"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "matches": [
                {
                  "cheaperYesOn": "kalshi",
                  "divergencePct": 12.4,
                  "kalshi": {
                    "subTitle": null,
                    "ticker": "KXFED-99",
                    "title": "Fed cuts rates at September FOMC meeting?",
                    "yesProbability": 0.496
                  },
                  "matchScore": 0.5,
                  "polymarket": {
                    "question": "Will the Fed cut rates in September?",
                    "slug": "example-market",
                    "volume24hr": 45678.9,
                    "yesProbability": 0.62
                  }
                }
              ],
              "minDivergencePct": 10,
              "note": "Matches are found by keyword-overlap similarity...",
              "query": null
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "limit": {
                      "description": "Max matches to return, 1-25 (default 10)",
                      "type": "string"
                    },
                    "minDivergencePct": {
                      "description": "Minimum probability-point divergence to include, 0-100 (default 5)",
                      "type": "string"
                    },
                    "q": {
                      "description": "Optional keyword filter on the matched question text",
                      "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"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
                "resourceUrl": "https://x402tap.com/api/prediction-arb",
                "scheme": "exact",
                "validUntil": 1791505384,
                "version": 1
              },
              "signature": "0xdb7b90416004fdd302ae7ab466284946cff0bd360a53ce280cd9e959b23475127190f17b3f9f904e2c620e17400ad7b712f212e5c5f7887072d2783672c6061a1b"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
                "network": "eip155:137",
                "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
                "resourceUrl": "https://x402tap.com/api/prediction-arb",
                "scheme": "exact",
                "validUntil": 1791505384,
                "version": 1
              },
              "signature": "0x12dd93fa1d477356e47f9534c6e05b6874728fb0b04a9b75c3b1656cf9b5196f4d47fa7a3dcde652652e559c14d65d2fc509eaa97f67d6c383bf9c5fced5706b1c"
            },
            {
              "acceptIndex": 2,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
                "network": "eip155:42161",
                "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
                "resourceUrl": "https://x402tap.com/api/prediction-arb",
                "scheme": "exact",
                "validUntil": 1791505384,
                "version": 1
              },
              "signature": "0x542fe2e056b136ad12d4c68df1bc43035f6fbbeb7b9f27e5df15a3667d1b97e62cb985fa476e07bcd6d745a4776cbbdd977f60323b64d038aa38fceed68b1a411b"
            },
            {
              "acceptIndex": 3,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
                "resourceUrl": "https://x402tap.com/api/prediction-arb",
                "scheme": "exact",
                "validUntil": 1791505384,
                "version": 1
              },
              "signature": "0xed3c1759a44042118e1d568ef222c873b4942d65a8c13406dae21ec6e555ee14621a4101d971513d4c78f3db86f95e5ddc590184e6f06181574cd95c06ea91101c"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "x402tap.com",
    "manifest_name": "x402tap.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "count": 1,
    "matches": [
      {
        "cheaperYesOn": "kalshi",
        "divergencePct": 12.4,
        "kalshi": {
          "subTitle": null,
          "ticker": "KXFED-99",
          "title": "Fed cuts rates at September FOMC meeting?",
          "yesProbability": 0.496
        },
        "matchScore": 0.5,
        "polymarket": {
          "question": "Will the Fed cut rates in September?",
          "slug": "example-market",
          "volume24hr": 45678.9,
          "yesProbability": 0.62
        }
      }
    ],
    "minDivergencePct": 10,
    "note": "Matches are found by keyword-overlap similarity...",
    "query": null
  }
}