data.spencermcw.com
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.02 USDC on Base to 0xE690…870DF. The signed payment is good for 5 minutes.
- Paid to
- 0xE690…870DF
- 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
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.
Show the promptHide 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.