Tanod utilpeek

utilpeek (Tanod) regulated US event contracts (prediction markets): implied probability, bid and ask, volume, close time. Use when an agent needs US event-contract odds: implied probability, bid/ask, volume, close time by topic.

DataLiveeip155:8453Exactvia cdp
UtilpeekMarketsEventContractsFx-rates
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 snapshots so far.
$4.72
Verified settled volume
638 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-15 02:35Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x593857A4a4F619543ea12394137C3004ce841720

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonTanodERC-8004

Live 402 challenge

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

{
  "error": "Payment required (USD 0.004 base price shown). This route takes POST with a JSON body (input schema in extensions.bazaar); the 402 of a POST quotes the exact price. Free tier (opt-in): 10 utilpeek calls (FX rates, QR codes, geocoding, public holidays, phone numbers, identifier checks, user agents, cron, time zones, URLs and barcodes, shared) per IP per UTC day with header X-Tanod-Free: 1 (no payment needed). Charged only when the call returns an answer (HTTP 200); try a USD 0.001 test payment at POST /v1/x402/pay-test; terms: https://tanod.dev/payments/",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
      "amount": "4000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "assetTransferMethod": "permit2"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000000000000000",
      "scheme": "exact",
      "network": "eip155:56",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "version": "1",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 604900
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "name": "GatewayWalletBatched",
        "version": "1",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
      },
      "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 604900
    }
  ],
  "resource": {
    "url": "https://tanod.dev/v1/markets/event-contracts",
    "tags": [
      "utilpeek",
      "markets",
      "event",
      "contracts",
      "fx-rates"
    ],
    "iconUrl": "https://tanod.dev/icon.png",
    "mimeType": "application/json",
    "description": "utilpeek (Tanod) regulated US event contracts (prediction markets): implied probability, bid and ask, volume, close time. Use when an agent needs US event-contract odds: implied probability, bid/ask, volume, close time by topic.",
    "serviceName": "Tanod utilpeek"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {},
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "sort": "volume",
            "as_of": "2026-10-12T03:10:05Z",
            "count": 1,
            "query": "goals",
            "stale": false,
            "source": "Third-party quotes from a regulated US event-contract exchange (prediction markets); Tanod does not create the prices.",
            "markets": [
              {
                "id": "KXLIGAMXTOTAL-26OCT11PUMCRA-7",
                "title": "Will over 6.5 goals be scored?",
                "volume": 49257.86,
                "yes_ask": 0.28,
                "yes_bid": 0.26,
                "event_id": "KXLIGAMXTOTAL-26OCT11PUMCRA",
                "subtitle": "Over 6.5 goals scored",
                "close_time": "2026-10-14T01:00:00Z",
                "last_price": 0.27,
                "volume_24h": 44200.82,
                "open_interest": 28915.51,
                "implied_probability": 0.27
              }
            ],
            "coverage": "Open markets in the 300 non-sports series with the highest all-time volume (politics, economics, finance, crypto, world, science and more); sports and low-volume series are not included, so this is not every market.",
            "disclaimer": "Data only, not trading advice. Third-party exchange quotes, delayed up to about 30 minutes; may contain errors.",
            "age_seconds": 212,
            "close_after": null,
            "next_cursor": "c1",
            "close_before": null,
            "total_matched": 38,
            "untrusted_content": true,
            "stale_after_seconds": 3600
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "sort": {
                    "enum": [
                      "volume",
                      "closing_soon"
                    ],
                    "type": "string",
                    "default": "volume",
                    "description": "volume (default): most traded first; closing_soon: earliest close time first."
                  },
                  "limit": {
                    "type": "integer",
                    "default": 20,
                    "maximum": 100,
                    "minimum": 1,
                    "description": "Most markets to return, 1-100 (default 20)."
                  },
                  "query": {
                    "anyOf": [
                      {
                        "type": "string",
                        "maxLength": 100,
                        "minLength": 1
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "default": null,
                    "description": "Optional: words that must all appear in the market title or subtitle, such as fed rate or bitcoin above. Omit to list markets."
                  },
                  "cursor": {
                    "anyOf": [
                      {
                        "type": "string",
                        "maxLength": 8,
                        "minLength": 2
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "default": null,
                    "description": "Optional: the `next_cursor` of the previous reply, to get the next page of the same search."
                  },
                  "close_after": {
                    "anyOf": [
                      {
                        "type": "string",
                        "maxLength": 40,
                        "minLength": 10
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "default": null,
                    "description": "Optional: only markets closing on or after this date or ISO 8601 time."
                  },
                  "close_before": {
                    "anyOf": [
                      {
                        "type": "string",
                        "maxLength": 40,
                        "minLength": 10
                      },
                      {
                        "type": "null"
                      }
                    ],
                    "default": null,
                    "description": "Optional: only markets closing on or before this date (2026-12-31) or ISO 8601 time."
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "as_of",
                  "stale_after_seconds",
                  "disclaimer",
                  "count",
                  "markets",
                  "untrusted_content"
                ],
                "properties": {
                  "sort": {
                    "type": "string"
                  },
                  "as_of": {
                    "type": "string"
                  },
                  "count": {
                    "type": "integer"
                  },
                  "query": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "stale": {
                    "type": "boolean"
                  },
                  "source": {
                    "type": "string"
                  },
                  "markets": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {
                        "id": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "volume": {
                          "type": "number"
                        },
                        "yes_ask": {
                          "type": "number"
                        },
                        "yes_bid": {
                          "type": "number"
                        },
                        "event_id": {
                          "type": "string"
                        },
                        "subtitle": {
                          "type": "string"
                        },
                        "close_time": {
                          "type": "string"
                        },
                        "last_price": {
                          "type": "number"
                        },
                        "volume_24h": {
                          "type": "number"
                        },
                        "open_interest": {
                          "type": "number"
                        },
                        "implied_probability": {
                          "type": "number"
                        }
                      }
                    }
                  },
                  "coverage": {
                    "type": "string"
                  },
                  "disclaimer": {
                    "type": "string"
                  },
                  "age_seconds": {
                    "type": "integer"
                  },
                  "close_after": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "next_cursor": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "close_before": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "total_matched": {
                    "type": "integer"
                  },
                  "untrusted_content": {
                    "type": "boolean"
                  },
                  "stale_after_seconds": {
                    "type": "integer"
                  }
                }
              }
            }
          }
        }
      }
    },
    "builder-code": {
      "info": {
        "a": "bc_h7pxv14u"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "a": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "App builder code"
          },
          "s": {
            "type": "array",
            "items": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$"
            },
            "maxItems": 11,
            "description": "Service builder codes"
          },
          "w": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "Wallet builder code"
          }
        },
        "additionalProperties": false
      }
    },
    "payment-identifier": {
      "info": {
        "required": false
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "required"
        ],
        "properties": {
          "id": {
            "type": "string",
            "pattern": "^[a-zA-Z0-9_-]+$",
            "maxLength": 128,
            "minLength": 16
          },
          "required": {
            "type": "boolean"
          }
        }
      }
    },
    "erc20ApprovalGasSponsoring": {
      "info": {
        "version": "1",
        "description": "The facilitator accepts a raw signed approval transaction and will sponsor the gas fees."
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "from",
          "asset",
          "spender",
          "amount",
          "signedTransaction",
          "version"
        ],
        "properties": {
          "from": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The address of the sender."
          },
          "asset": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The ERC-20 token contract address to approve."
          },
          "amount": {
            "type": "string",
            "pattern": "^[0-9]+$",
            "description": "Approval amount (uint256)."
          },
          "spender": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The address of the spender (Canonical Permit2)."
          },
          "version": {
            "type": "string",
            "pattern": "^[0-9]+(\\.[0-9]+)*$",
            "description": "Schema version identifier."
          },
          "signedTransaction": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]+$",
            "description": "RLP-encoded signed transaction calling ERC20.approve()."
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x5938…41720. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
4000 smallest units
4000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x3c49…c3359
Payment window
5 minutes
4000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
EPjFWd…TDt1v
Payment window
5 minutes
4000000000000000units
on eip155:56 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x8AC7…d580d
Payment window
5 minutes
4000units
on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0xaf88…e5831
Payment window
5 minutes
0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x5938…41720. The signed payment is good for 168 hours.

USD Coin contract
0x8335…02913
Payment window
168 hours
As published
4000 smallest units
4000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x3c49…c3359
Payment window
168 hours
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
    },
    "payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
    "amount": "4000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 604900
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {},
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "sort": "volume",
          "as_of": "2026-10-12T03:10:05Z",
          "count": 1,
          "query": "goals",
          "stale": false,
          "source": "Third-party quotes from a regulated US event-contract exchange (prediction markets); Tanod does not create the prices.",
          "markets": [
            {
              "id": "KXLIGAMXTOTAL-26OCT11PUMCRA-7",
              "title": "Will over 6.5 goals be scored?",
              "volume": 49257.86,
              "yes_ask": 0.28,
              "yes_bid": 0.26,
              "event_id": "KXLIGAMXTOTAL-26OCT11PUMCRA",
              "subtitle": "Over 6.5 goals scored",
              "close_time": "2026-10-14T01:00:00Z",
              "last_price": 0.27,
              "volume_24h": 44200.82,
              "open_interest": 28915.51,
              "implied_probability": 0.27
            }
          ],
          "coverage": "Open markets in the 300 non-sports series with the highest all-time volume (politics, economics, finance, crypto, world, science and more); sports and low-volume series are not included, so this is not every market.",
          "disclaimer": "Data only, not trading advice. Third-party exchange quotes, delayed up to about 30 minutes; may contain errors.",
          "age_seconds": 212,
          "close_after": null,
          "next_cursor": "c1",
          "close_before": null,
          "total_matched": 38,
          "untrusted_content": true,
          "stale_after_seconds": 3600
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "properties": {
                "sort": {
                  "enum": [
                    "volume",
                    "closing_soon"
                  ],
                  "type": "string",
                  "default": "volume",
                  "description": "volume (default): most traded first; closing_soon: earliest close time first."
                },
                "limit": {
                  "type": "integer",
                  "default": 20,
                  "maximum": 100,
                  "minimum": 1,
                  "description": "Most markets to return, 1-100 (default 20)."
                },
                "query": {
                  "anyOf": [
                    {
                      "type": "string",
                      "maxLength": 100,
                      "minLength": 1
                    },
                    {
                      "type": "null"
                    }
                  ],
                  "default": null,
                  "description": "Optional: words that must all appear in the market title or subtitle, such as fed rate or bitcoin above. Omit to list markets."
                },
                "cursor": {
                  "anyOf": [
                    {
                      "type": "string",
                      "maxLength": 8,
                      "minLength": 2
                    },
                    {
                      "type": "null"
                    }
                  ],
                  "default": null,
                  "description": "Optional: the `next_cursor` of the previous reply, to get the next page of the same search."
                },
                "close_after": {
                  "anyOf": [
                    {
                      "type": "string",
                      "maxLength": 40,
                      "minLength": 10
                    },
                    {
                      "type": "null"
                    }
                  ],
                  "default": null,
                  "description": "Optional: only markets closing on or after this date or ISO 8601 time."
                },
                "close_before": {
                  "anyOf": [
                    {
                      "type": "string",
                      "maxLength": 40,
                      "minLength": 10
                    },
                    {
                      "type": "null"
                    }
                  ],
                  "default": null,
                  "description": "Optional: only markets closing on or before this date (2026-12-31) or ISO 8601 time."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "as_of",
                "stale_after_seconds",
                "disclaimer",
                "count",
                "markets",
                "untrusted_content"
              ],
              "properties": {
                "sort": {
                  "type": "string"
                },
                "as_of": {
                  "type": "string"
                },
                "count": {
                  "type": "integer"
                },
                "query": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "stale": {
                  "type": "boolean"
                },
                "source": {
                  "type": "string"
                },
                "markets": {
                  "type": "array"
                },
                "coverage": {
                  "type": "string"
                },
                "disclaimer": {
                  "type": "string"
                },
                "age_seconds": {
                  "type": "integer"
                },
                "close_after": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "next_cursor": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "close_before": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "total_matched": {
                  "type": "integer"
                },
                "untrusted_content": {
                  "type": "boolean"
                },
                "stale_after_seconds": {
                  "type": "integer"
                }
              },
              "description": "Abridged to fit the header. Full example: the 402 JSON body. Full schema: https://tanod.dev/openapi.json POST /v1/markets/event-contracts"
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_h7pxv14u"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  },
  "erc20ApprovalGasSponsoring": {
    "info": {
      "version": "1",
      "description": "The facilitator accepts a raw signed approval transaction and will sponsor the gas fees."
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "from",
        "asset",
        "spender",
        "amount",
        "signedTransaction",
        "version"
      ],
      "properties": {
        "from": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The address of the sender."
        },
        "asset": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The ERC-20 token contract address to approve."
        },
        "amount": {
          "type": "string",
          "pattern": "^[0-9]+$",
          "description": "Approval amount (uint256)."
        },
        "spender": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The address of the spender (Canonical Permit2)."
        },
        "version": {
          "type": "string",
          "pattern": "^[0-9]+(\\.[0-9]+)*$",
          "description": "Schema version identifier."
        },
        "signedTransaction": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]+$",
          "description": "RLP-encoded signed transaction calling ERC20.approve()."
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-15 02:35Z
Last indexed by Roundhouse
2026-10-26 15:00Z
Last enriched (probe, favicon, geo)
2026-10-13 22:16Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 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 Tanod utilpeek 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=Tanod%20utilpeek'
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://tanod.dev/v1/markets/event-contracts, 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.