kr-x402-mvp.kgy5612.workers.dev

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.

Live 402 challenge

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

{
  "next": [
    "https://kr-x402-mvp.kgy5612.workers.dev/api/v1/perpetuals/volume?limit=5&min_volume_usd=1000000",
    "https://kr-x402-mvp.kgy5612.workers.dev/api/v1/nofx/funding-rate/low?limit=20&min_volume_usd=1000000",
    "https://kr-x402-mvp.kgy5612.workers.dev/api/usd-price?symbols=BTC,ETH,SOL",
    "https://kr-x402-mvp.kgy5612.workers.dev/crypto/hl-book?coin=ETH",
    "https://kr-x402-mvp.kgy5612.workers.dev/crypto/funding-signal?symbol=BTC"
  ],
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 900
    }
  ],
  "catalog": "https://kr-x402-mvp.kgy5612.workers.dev/catalog",
  "example": "https://kr-x402-mvp.kgy5612.workers.dev/api/v1/perpetuals/volume?limit=5&min_volume_usd=1000000",
  "openapi": "https://kr-x402-mvp.kgy5612.workers.dev/openapi.json",
  "resource": {
    "url": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prediction-markets",
    "tags": [
      "prediction-markets",
      "polymarket",
      "odds",
      "implied-probability",
      "event-odds",
      "betting",
      "bitcoin",
      "macro",
      "fed",
      "election",
      "forecast",
      "sentiment",
      "crypto"
    ],
    "mimeType": "application/json",
    "description": "Live prediction-market odds (Polymarket) as clean implied probabilities, so your agent can price events: q=bitcoin|ethereum|solana|fed|election|any keyword (default crypto), limit=1-20 events (default 8), markets=1-20 per event (default 6). Returns events sorted by 24h volume, each with markets [{question, outcome_label, yes_prob, no_prob, best_bid, best_ask, change_1d, volume_24h, liquidity, end_date, url}], contested markets (5-95%) first; plus top_contested (the most-traded genuinely...",
    "serviceName": "Crypto Microdata for Agents"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "bitcoin",
            "limit": 8
          }
        },
        "output": {
          "type": "json",
          "example": {
            "q": "bitcoin",
            "events": [
              {
                "url": "https://polymarket.com/event/bitcoin-above-on-october-30",
                "title": "Bitcoin above ___ on October 30?",
                "markets": [
                  {
                    "no_prob": 0.38,
                    "best_ask": 0.63,
                    "best_bid": 0.61,
                    "question": "Will the price of Bitcoin be above $80,000 on October 30?",
                    "yes_prob": 0.62,
                    "change_1d": 0.05,
                    "contested": true,
                    "liquidity": 50000,
                    "volume_24h": 41000,
                    "outcome_label": "80,000"
                  }
                ],
                "end_date": "2026-10-30T16:00:00Z",
                "liquidity": 610000,
                "volume_24h": 281751.88
              }
            ],
            "source": "polymarket",
            "n_events": 1,
            "updated_at": "2026-10-29T15:30:00Z",
            "top_contested": {
              "event": "Bitcoin above ___ on October 30?",
              "question": "Will the price of Bitcoin be above $80,000 on October 30?",
              "yes_prob": 0.62,
              "volume_24h": 41000
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "q": {
                    "type": "string",
                    "examples": [
                      "bitcoin",
                      "ethereum",
                      "fed rate",
                      "election"
                    ],
                    "maxLength": 80,
                    "description": "Search keyword (default crypto)"
                  },
                  "limit": {
                    "type": "integer",
                    "maximum": 20,
                    "minimum": 1,
                    "description": "Events to return (default 8)"
                  },
                  "markets": {
                    "type": "integer",
                    "maximum": 20,
                    "minimum": 1,
                    "description": "Markets per event (default 6)"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "how_to_pay": "Sign the accepts[0] USDC EIP-3009 authorization on Base and retry this exact URL with header PAYMENT-SIGNATURE (x402 v2). GET and POST are the same price; HEAD only returns this quote. Same terms are in the PAYMENT-REQUIRED header. Failed calls (4xx/5xx) are never charged.",
  "price_usdc": "0.003000",
  "free_sample": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prediction-markets?sample=1",
  "x402Version": 2,
  "input_schema": {
    "type": "object",
    "properties": {
      "q": {
        "type": "string",
        "examples": [
          "bitcoin",
          "ethereum",
          "fed rate",
          "election"
        ],
        "maxLength": 80,
        "description": "Search keyword (default crypto)"
      },
      "limit": {
        "type": "integer",
        "maximum": 20,
        "minimum": 1,
        "description": "Events to return (default 8)"
      },
      "markets": {
        "type": "integer",
        "maximum": 20,
        "minimum": 1,
        "description": "Markets per event (default 6)"
      }
    },
    "additionalProperties": false
  },
  "cheapest_first_call": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/ping ($0.001)"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying: a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xe4be4d0bd82d8e68203deff81f79ede0529f2617",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://kr-x402-mvp.kgy5612.workers.dev/crypto/prediction-markets",
    "description": "",
    "maxAmountRequired": "3000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-10-30 01:32Z

Last indexed by Roundhouse

2026-11-11 23:46Z

Last enriched (probe, favicon, geo)

2026-11-12 00:15Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402