data.spencermcw.com
No description published for this endpoint.
DataLiveeip155:8453Exactvia 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
0xE6900aE625875b748f56Fb45C3e06a59Be8870DFThe 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/payers",
"mimeType": "application/json",
"description": "What has each insurer negotiated for a procedure in this area? Negotiated prices by canonical payer (Aetna, Cigna, UnitedHealthcare, Medicare Advantage, …) and plan type for one code near a Colorado ZIP, computed by Distill from hospital price-transparency 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": "80631",
"code": "470",
"plan_type": "commercial",
"radius_miles": 15
}
},
"output": {
"type": "json",
"example": {
"data": {
"code": {
"drg": {
"mdc": "08",
"kind": "SURG",
"amlos": 2.3,
"gmlos": 2,
"weight": 1.9563
},
"code": "470",
"type": "MS-DRG",
"description": "MAJOR HIP AND KNEE JOINT REPLACEMENT OR REATTACHMENT OF LOWER EXTREMITY WITHOUT MCC",
"mrfs_statewide": 45,
"description_source": "cms_ms_drg"
},
"payers": [
{
"payer": "Anthem Blue Cross and Blue Shield (Elevance Health)",
"rates": 5,
"payer_id": "anthem",
"hospitals": 2,
"plan_type": "commercial",
"confidence": 1,
"methodology": "case rate",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 5,
"max": "62303.47",
"min": "32550.19",
"p10": "32550.19",
"p90": "62303.47",
"median": "58474.6"
}
},
{
"payer": "Aetna (CVS Health)",
"rates": 2,
"payer_id": "aetna",
"hospitals": 2,
"plan_type": "commercial",
"confidence": 1,
"methodology": "case rate",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 2,
"max": "70238.96",
"min": "58937.54",
"p10": "58937.54",
"p90": "70238.96",
"median": "58937.54"
}
},
{
"payer": "Cigna Healthcare",
"rates": 3,
"payer_id": "cigna",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 1,
"methodology": "case rate",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 3,
"max": "59871.13",
"min": "42541.89",
"p10": "42541.89",
"p90": "59871.13",
"median": "46501.92"
}
},
{
"payer": "Other payer",
"rates": 3,
"payer_id": "other",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 0.6,
"methodology": "fee schedule",
"fallback_rates": 3,
"negotiated_dollar": {
"n": 3,
"max": "46767.99",
"min": "22008.47",
"p10": "22008.47",
"p90": "46767.99",
"median": "42182.9"
}
},
{
"payer": "Kaiser Permanente",
"rates": 2,
"payer_id": "kaiser",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 1,
"methodology": "case rate",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 2,
"max": "42605.54",
"min": "37789.08",
"p10": "37789.08",
"p90": "42605.54",
"median": "37789.08"
}
},
{
"payer": "UnitedHealthcare",
"rates": 2,
"payer_id": "unitedhealthcare",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 1,
"methodology": "case rate",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 2,
"max": "66736.08",
"min": "49185.02",
"p10": "49185.02",
"p90": "66736.08",
"median": "49185.02"
}
},
{
"payer": "Denver Health Medical Plan",
"rates": 1,
"payer_id": "denver_health_medical_plan",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 1,
"methodology": "fee schedule",
"fallback_rates": 0,
"negotiated_dollar": {
"n": 1,
"max": "32750.43",
"min": "32750.43",
"p10": "32750.43",
"p90": "32750.43",
"median": "32750.43"
}
},
{
"payer": "Other payer",
"rates": 1,
"payer_id": "other",
"hospitals": 1,
"plan_type": "commercial",
"confidence": 0.6,
"methodology": "case rate",
"fallback_rates": 1,
"negotiated_dollar": {
"n": 1,
"max": "38245.26",
"min": "38245.26",
"p10": "38245.26",
"p90": "38245.26",
"median": "38245.26"
}
}
],
"filters": {
"setting": null,
"plan_type": "commercial"
},
"location": {
"lat": 40.4447,
"lon": -104.6794,
"zip": "80631",
"radius_miles": 15
},
"payers_total": 8,
"hospitals_with_prices": 2
}
}
}
},
"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}$"
},
"code": {
"type": "string",
"pattern": "^[0-9A-Za-z]{3,5}$"
},
"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
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"code",
"location",
"filters",
"hospitals_with_prices",
"payers_total",
"payers"
],
"properties": {
"code": {
"type": "object",
"required": [
"type",
"code",
"description",
"description_source",
"drg",
"mrfs_statewide"
],
"properties": {
"drg": {
"anyOf": [
{
"type": "object",
"required": [
"mdc",
"kind",
"weight",
"gmlos",
"amlos"
],
"properties": {
"mdc": {
"type": [
"string",
"null"
]
},
"kind": {
"type": [
"string",
"null"
]
},
"amlos": {
"type": [
"number",
"null"
]
},
"gmlos": {
"type": [
"number",
"null"
]
},
"weight": {
"type": [
"number",
"null"
]
}
},
"additionalProperties": false
},
{
"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
},
"payers": {
"type": "array",
"items": {
"type": "object",
"required": [
"payer_id",
"payer",
"plan_type",
"methodology",
"hospitals",
"rates",
"negotiated_dollar",
"fallback_rates",
"confidence"
],
"properties": {
"payer": {
"type": "string"
},
"rates": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"payer_id": {
"type": "string"
},
"hospitals": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"plan_type": {
"type": "string"
},
"confidence": {
"type": "number"
},
"methodology": {
"anyOf": [
{
"enum": [
"case rate",
"fee schedule",
"percent of total billed charges",
"per diem",
"other"
],
"type": "string"
},
{
"type": "null"
}
]
},
"fallback_rates": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"negotiated_dollar": {
"anyOf": [
{
"type": "object",
"required": [
"n",
"min",
"p10",
"median",
"p90",
"max"
],
"properties": {
"n": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"max": {
"type": "string",
"pattern": "^\\d{1,12}(\\.\\d{1,6})?$"
},
"min": {
"type": "string",
"pattern": "^\\d{1,12}(\\.\\d{1,6})?$"
},
"p10": {
"type": "string",
"pattern": "^\\d{1,12}(\\.\\d{1,6})?$"
},
"p90": {
"type": "string",
"pattern": "^\\d{1,12}(\\.\\d{1,6})?$"
},
"median": {
"type": "string",
"pattern": "^\\d{1,12}(\\.\\d{1,6})?$"
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
}
},
"additionalProperties": false
}
},
"filters": {
"type": "object",
"required": [
"setting",
"plan_type"
],
"properties": {
"setting": {
"type": [
"string",
"null"
]
},
"plan_type": {
"type": [
"string",
"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
},
"payers_total": {
"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.
- 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/payers",
"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/payers, 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.