mirrored listing x402 eip155:8453

UMA resolution dispute and flip base rates by category and criterion clarity; descriptive

UMA resolution dispute and flip base rates by category and criterion clarity; descriptive historical compatibility, not a market-specific forecast. BEFORE YOU PAY: free substitute https://dash.polym.uk/uma-base-rates.json and https://dash.polym.uk/uma-flip-rate.json. THIS ADDS: The two artifacts joined into one response, dispute axis and flip axis already aligned by category. The underlying numbers are the same ones in those two free files.

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50000 (raw units)
price
14
calls / 30d
8
unique payers
2026-09-17
updated

Provider

api.polym.uk · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x7b13107779CfDA1bEba3289d0Fbe27310436f3E3",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "50000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "asOf": "2026-08-31T11:03:16.092Z",
          "byCategory": [
            {
              "category": "Geopolitics",
              "disputeInsufficientSample": false,
              "disputeRatePctChronological": 2.3,
              "disputeRatePctHighVolume": 35.2,
              "elevated": true,
              "flipInsufficientSample": false,
              "flipRatePct": 8,
              "lockupHoursIfDisputed": 119,
              "lockupHoursPerMarket": 42
            }
          ],
          "caveats": [
            "SHOWCASE, NOT THE PAID RESPONSE: what you see is one category row of the base-rate table. byCategory is cut to 1 of the 6 rows this response carried. clarity and flipOverall are the aggregate over the whole response, so they are null here and populated in a paid response. Nothing is masked or invented: every value is a dated measurement, kept so you can read the shape, the units and the field semantics. The schema published beside it is complete; a paid call returns the complete set.",
            "EXAMPLE ONLY: a paid response captured from api.polym.uk on 2026-09-01, then frozen. A live response carries its own asOf and current values.",
            "Category BASE RATE, not a forecast for any specific market. On-chain and Gamma fact, not an accusation.",
            "Dispute: two samples. The absolute figure varies several-fold; the signal is the relative RANK. Flip and clarity cells are small and directional, and insufficientSample is flagged when so.",
            "Category is a title heuristic and 'Other' is the residual bucket. DVM vote concentration is deferred: cited from press coverage, not recomputed here."
          ],
          "clarity": null,
          "dataDegraded": false,
          "elevatedRiskCategories": [
            "Geopolitics"
          ],
          "flipAsOf": "2026-08-31T11:56:03.265Z",
          "flipOverall": null,
          "howToRead": "TWO axes per category: dispute (how often markets like this are disputed at UMA) by flip (when disputed, how often the outcome REVERSES). Flip often INVERTS the dispute ranking. clarity: a title that states a checkable threshold is disputed less often than one that does not, and this is orthogonal to category. Read from the TITLE only; the resolution rules are not read."
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "additionalProperties": false,
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "additionalProperties": false,
              "properties": {
                "asOf": {
                  "format": "date-time",
                  "type": "string"
                },
                "byCategory": {
                  "items": {
                    "additionalProperties": false,
                    "properties": {
                      "category": {
                        "type": "string"
                      },
                      "disputeInsufficientSample": {
                        "type": "boolean"
                      },
                      "disputeRatePctChronological": {
                        "maximum": 100,
                        "minimum": 0,
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "disputeRatePctHighVolume": {
                        "maximum": 100,
                        "minimum": 0,
                        "type": "number"
                      },
                      "elevated": {
                        "type": "boolean"
                      },
                      "flipInsufficientSample": {
                        "type": "boolean"
                      },
                      "flipRatePct": {
                        "maximum": 100,
                        "minimum": 0,
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "lockupHoursIfDisputed": {
                        "minimum": 0,
                        "type": [
                          "number",
                          "null"
                        ]
                      },
                      "lockupHoursPerMarket": {
                        "minimum": 0,
                        "type": [
                          "number",
                          "null"
                        ]
                      }
                    },
                    "required": [
                      "category",
                      "disputeRatePctHighVolume",
                      "disputeRatePctChronological",
                      "disputeInsufficientSample",
                      "elevated",
                      "lockupHoursPerMarket",
                      "lockupHoursIfDisputed",
                      "flipRatePct",
                      "flipInsufficientSample"
                    ],
                    "type": "object"
                  },
                  "type": "array"
                },
                "caveats": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "clarity": {
                  "additionalProperties": false,
                  "properties": {
                    "checkableTitle": {
                      "additionalProperties": true,
                      "properties": {
                        "disputeRatePct": {
                          "maximum": 100,
                          "minimum": 0,
                          "type": "number"
                        },
                        "disputedMarkets": {
                          "description": "Disputed markets in this title-clarity cell. Numerator of disputeRatePct.",
                          "minimum": 0,
                          "type": "integer"
                        },
                        "marketsScanned": {
                          "minimum": 0,
                          "type": "integer"
                        }
                      },
                      "required": [
                        "marketsScanned",
                        "disputeRatePct"
                      ],
                      "type": "object"
                    },
                    "uncheckableTitle": {
                      "additionalProperties": true,
                      "properties": {
                        "disputeRatePct": {
                          "maximum": 100,
                          "minimum": 0,
                          "type": "number"
                        },
                        "disputedMarkets": {
                          "description": "Disputed markets in this title-clarity cell. Numerator of disputeRatePct.",
                          "minimum": 0,
                          "type": "integer"
                        },
                        "marketsScanned": {
                          "minimum": 0,
                          "type": "integer"
                        }
                      },
                      "required": [
                        "marketsScanned",
                        "disputeRatePct"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "checkableTitle",
                    "uncheckableTitle"
                  ],
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "dataDegraded": {
                  "type": "boolean"
                },
                "elevatedRiskCategories": {
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                },
                "flipAsOf": {
                  "format": "date-time",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "flipOverall": {
                  "additionalProperties": true,
                  "properties": {
                    "disputedResolved": {
                      "minimum": 0,
                      "type": "integer"
                    },
                    "flipRatePct": {
                      "maximum": 100,
                      "minimum": 0,
                      "type": "number"
                    },
                    "flipped": {
                      "description": "Disputes whose outcome reversed. Numerator of flipRatePct.",
                      "minimum": 0,
                      "type": "integer"
                    },
                    "splitCount": {
                      "description": "Disputes resolved to a split outcome rather than to one side.",
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "flipRatePct",
                    "disputedResolved"
                  ],
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "howToRead": {
                  "type": "string"
                }
              },
              "required": [
                "asOf",
                "flipAsOf",
                "dataDegraded",
                "elevatedRiskCategories",
                "byCategory",
                "clarity",
                "flipOverall",
                "howToRead",
                "caveats"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://api.polym.uk/resolution-risk"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.polym.uk/resolution-risk");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.polym.uk/resolution-risk")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/1360.json, and this resource appears in /discovery/resources and /discovery/search.