data.spencermcw.com

No description published for this endpoint.

TradingLiveeip155:8453Exactvia facilitator:thirdweb
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$0.73
Verified settled volume
28 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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
0xE6900aE625875b748f56Fb45C3e06a59Be8870DF

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": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://data.spencermcw.com/v1/hospital/prices",
    "mimeType": "application/json",
    "description": "What does a procedure cost at hospitals near this ZIP? Cash price, gross charge and every insurer’s negotiated rate for a CPT, HCPCS or MS-DRG code at Colorado hospitals, normalized by Distill from the hospitals’ federally required price files. Updated weekly. $0.02 per call (x402, USDC on Base); 3 free calls a day."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "zip": "81052",
            "code": "A4550",
            "limit": 1,
            "payer": "medicare",
            "radius_miles": 10
          }
        },
        "output": {
          "type": "json",
          "example": {
            "data": {
              "code": {
                "drg": null,
                "code": "A4550",
                "type": "HCPCS",
                "description": "Surgical trays",
                "mrfs_statewide": 13,
                "description_source": "cms_hcpcs_level_ii"
              },
              "filters": {
                "plan": null,
                "payer": "medicare",
                "setting": null,
                "plan_type": null,
                "billing_class": null
              },
              "summary": {
                "gross": {
                  "n": 1,
                  "max": "67",
                  "min": "67",
                  "p10": "67",
                  "p90": "67",
                  "median": "67"
                },
                "items": 1,
                "rates": 1,
                "hospitals": 1,
                "discounted_cash": {
                  "n": 1,
                  "max": "40.2",
                  "min": "40.2",
                  "p10": "40.2",
                  "p90": "40.2",
                  "median": "40.2"
                },
                "negotiated_dollar": {
                  "n": 1,
                  "max": "32.83",
                  "min": "32.83",
                  "p10": "32.83",
                  "p90": "32.83",
                  "median": "32.83"
                }
              },
              "location": {
                "lat": 37.9744,
                "lon": -102.639,
                "zip": "81052",
                "radius_miles": 10
              },
              "hospitals": [
                {
                  "id": "co-061323",
                  "ccn": "061323",
                  "zip": "81052",
                  "city": "LAMAR",
                  "mrfs": [
                    {
                      "url": "https://www.prowersmedical.com/wp-content/uploads/840584583_PROWERS-MEDICAL-CENTER_STANDARDCHARGES.csv",
                      "sha256": "1d4105709236d42f631e79f4e3fe22c408fe1e69b11118319869affa5f7fbbb1",
                      "source_id": "hpt-mrf-31836e761c89c201",
                      "fetched_at": "2026-10-19T23:08:32.284Z",
                      "conformance": "errors",
                      "last_updated_on": "2025-01-01"
                    }
                  ],
                  "name": "PROWERS MEDICAL CENTER",
                  "items": [
                    {
                      "mrf": "hpt-mrf-31836e761c89c201",
                      "gross": "67",
                      "rates": [
                        {
                          "payer": "Medicare (CMS)",
                          "allowed": null,
                          "payer_id": "medicare",
                          "algorithm": "annual cost report",
                          "plan_name": null,
                          "plan_type": "medicare",
                          "confidence": 0.2756,
                          "payer_name": "Medicare",
                          "rate_basis": "percent_of_charges",
                          "methodology": "percent of total billed charges",
                          "normalized_by": {
                            "basis": "fallback",
                            "payer": "rule"
                          },
                          "negotiated_dollar": "32.83",
                          "negotiated_dollar_max": null,
                          "negotiated_percentage": 49
                        }
                      ],
                      "setting": "both",
                      "drug_unit": null,
                      "gross_max": null,
                      "modifiers": [],
                      "billing_class": null,
                      "discounted_cash": "40.2",
                      "deidentified_max": "63.65",
                      "deidentified_min": "32.83",
                      "discounted_cash_max": null
                    }
                  ],
                  "confidence": 0.2756,
                  "distance_miles": 6.7
                }
              ],
              "hospitals_in_radius": 1,
              "hospitals_with_file": 1,
              "hospitals_with_prices": 1
            }
          }
        }
      },
      "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",
                "required": [
                  "code"
                ],
                "properties": {
                  "lat": {
                    "type": "number",
                    "maximum": 90,
                    "minimum": -90
                  },
                  "lon": {
                    "type": "number",
                    "maximum": 180,
                    "minimum": -180
                  },
                  "zip": {
                    "type": "string",
                    "pattern": "^\\d{5}$"
                  },
                  "code": {
                    "type": "string",
                    "pattern": "^[0-9A-Za-z]{3,5}$"
                  },
                  "plan": {
                    "type": "string",
                    "maxLength": 80,
                    "minLength": 2
                  },
                  "limit": {
                    "type": "integer",
                    "maximum": 50,
                    "minimum": 1
                  },
                  "payer": {
                    "type": "string",
                    "pattern": "^[a-z0-9_]{2,40}$"
                  },
                  "setting": {
                    "enum": [
                      "inpatient",
                      "outpatient"
                    ],
                    "type": "string"
                  },
                  "code_type": {
                    "enum": [
                      "CPT",
                      "HCPCS",
                      "MS-DRG"
                    ],
                    "type": "string"
                  },
                  "plan_type": {
                    "enum": [
                      "commercial",
                      "medicare_advantage",
                      "medicaid",
                      "medicare",
                      "exchange",
                      "tricare",
                      "va",
                      "workers_comp",
                      "auto",
                      "supplemental",
                      "other",
                      "unspecified"
                    ],
                    "type": "string"
                  },
                  "radius_miles": {
                    "type": "number",
                    "maximum": 100,
                    "exclusiveMinimum": 0
                  },
                  "billing_class": {
                    "enum": [
                      "facility",
                      "professional"
                    ],
                    "type": "string"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "data": {
                    "type": "object",
                    "required": [
                      "code",
                      "location",
                      "filters",
                      "hospitals_in_radius",
                      "hospitals_with_file",
                      "hospitals_with_prices",
                      "hospitals",
                      "summary"
                    ],
                    "properties": {
                      "code": {
                        "type": "object",
                        "required": [
                          "type",
                          "code",
                          "description",
                          "description_source",
                          "drg",
                          "mrfs_statewide"
                        ],
                        "properties": {
                          "drg": {
                            "anyOf": [
                              {
                                "type": "object"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "code": {
                            "type": "string"
                          },
                          "type": {
                            "enum": [
                              "CPT",
                              "HCPCS",
                              "MS-DRG"
                            ],
                            "type": "string"
                          },
                          "description": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "mrfs_statewide": {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": -9007199254740991
                          },
                          "description_source": {
                            "anyOf": [
                              {
                                "enum": [
                                  "cms_hcpcs_level_ii",
                                  "cms_ms_drg"
                                ],
                                "type": "string"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          }
                        },
                        "additionalProperties": false
                      },
                      "filters": {
                        "type": "object",
                        "required": [
                          "payer",
                          "plan_type",
                          "plan",
                          "setting",
                          "billing_class"
                        ],
                        "properties": {
                          "plan": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "payer": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "setting": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "plan_type": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "billing_class": {
                            "type": [
                              "string",
                              "null"
                            ]
                          }
                        },
                        "additionalProperties": false
                      },
                      "summary": {
                        "type": "object",
                        "required": [
                          "hospitals",
                          "items",
                          "rates",
                          "negotiated_dollar",
                          "discounted_cash",
                          "gross"
                        ],
                        "properties": {
                          "gross": {
                            "anyOf": [
                              {
                                "type": "object"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "items": {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": -9007199254740991
                          },
                          "rates": {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": -9007199254740991
                          },
                          "hospitals": {
                            "type": "integer",
                            "maximum": 9007199254740991,
                            "minimum": -9007199254740991
                          },
                          "discounted_cash": {
                            "anyOf": [
                              {
                                "type": "object"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          },
                          "negotiated_dollar": {
                            "anyOf": [
                              {
                                "type": "object"
                              },
                              {
                                "type": "null"
                              }
                            ]
                          }
                        },
                        "additionalProperties": false
                      },
                      "location": {
                        "type": "object",
                        "required": [
                          "zip",
                          "lat",
                          "lon",
                          "radius_miles"
                        ],
                        "properties": {
                          "lat": {
                            "type": "number"
                          },
                          "lon": {
                            "type": "number"
                          },
                          "zip": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "radius_miles": {
                            "type": "number"
                          }
                        },
                        "additionalProperties": false
                      },
                      "hospitals": {
                        "type": "array",
                        "items": {
                          "type": "object",
                          "required": [
                            "id",
                            "ccn",
                            "name",
                            "city",
                            "zip",
                            "distance_miles",
                            "mrfs",
                            "items",
                            "confidence"
                          ],
                          "properties": {
                            "id": {
                              "type": "string"
                            },
                            "ccn": {
                              "type": [
                                "string",
                                "null"
                              ]
                            },
                            "zip": {
                              "type": [
                                "string",
                                "null"
                              ]
                            },
                            "city": {
                              "type": [
                                "string",
                                "null"
                              ]
                            },
                            "mrfs": {
                              "type": "array"
                            },
                            "name": {
                              "type": "string"
                            },
                            "items": {
                              "type": "array"
                            },
                            "confidence": {
                              "type": "number"
                            },
                            "distance_miles": {
                              "type": "number"
                            }
                          },
                          "additionalProperties": false
                        }
                      },
                      "hospitals_in_radius": {
                        "type": "integer",
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991
                      },
                      "hospitals_with_file": {
                        "type": "integer",
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991
                      },
                      "hospitals_with_prices": {
                        "type": "integer",
                        "maximum": 9007199254740991,
                        "minimum": -9007199254740991
                      }
                    },
                    "additionalProperties": false
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "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.

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0xE690…870DF. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://data.spencermcw.com/v1/hospital/prices",
    "description": "",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-10-21 05:32Z
Last indexed by Roundhouse
2026-10-23 22:46Z
Last enriched (probe, favicon, geo)
2026-10-23 23:16Z
x402 version
1
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. 8 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 data.spencermcw.com 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=data.spencermcw.com'
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://data.spencermcw.com/v1/hospital/prices, 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.