Distill
payment-ready until 2026-11-21
Answers narrow US public-data questions for AI agents: the sales-tax rate at an address or ZIP+4 (24 Streamlined Sales Tax states), what Medicare pays for a CPT code at a ZIP, which Part D plans cover a drug, NADAC drug acquisition costs, Colorado hospital prices, and whether a crypto address is on OFAC's SDN list.
Compare: all sanctions screening APIs · all VAT and tax APIs
Call it x402 v2
x402 v2
- Base URL
- https://data.spencermcw.com
- Payment
- x402 v2, header channel
$ curl -i 'https://data.spencermcw.com/v1/drug/nadac' An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.
Endpoints 9 paid routes on data.spencermcw.com
GET/v1/drug/nadac Base$0.01since 11-14
GET/v1/drug/nadac/search Base$0.01since 11-14
GET/v1/hospital/prices Base$0.02since 11-14
GET/v1/medicare/partd/coverage Base$0.02since 11-14
GET/v1/medicare/pfs/rate Base$0.01since 11-14
GET/v1/sanctions/address Base$0.005since 11-14
POST/v1/sanctions/address/batch Base$0.05since 11-14
GET/v1/tax/sales-rate Base$0.005since 11-14
1 more in Example 402 response
Prices as captured in the 402 response: median $0.01 across the 9 endpoints, unchanged since first capture.
Example 402 response
Endpoints and prices
| Method | Path | Description | Price | Network | Asset | 402 channel | Captured |
|---|---|---|---|---|---|---|---|
| GET | / | What do US pharmacies pay for this drug? CMS’s National Average Drug Acquisition Cost (NADAC) per unit for an NDC, the generic’s NADAC for a brand and the weekly price history since January 2025, from CMS’s NADAC files on data.medicaid.gov. Refreshed weekly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day. | $0.01 | Base | USDC | header | since 11-14 |
| GET | / | Which NDCs match this drug name, and what do pharmacies pay for them? NADAC search by name (e.g. “atorvastatin 40”) with NDC counts and current per-unit cost ranges, from CMS’s weekly NADAC file. Refreshed weekly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day. | $0.01 | Base | USDC | header | since 11-14 |
| GET | / | 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. Refreshed monthly (live freshness: /status). $0.02 per call (x402, USDC on Base); 3 free calls a day. | $0.02 | Base | USDC | header | since 11-14 |
| GET | / | Which Medicare Part D plans in this county cover this drug, at what tier and cost? Every PDP and Medicare Advantage drug plan with tier, prior authorization, step therapy, quantity limit, premium and copay, plan years 2026 and 2027, computed by Distill from CMS’s monthly formulary files. Refreshed monthly (live freshness: /status). $0.02 per call (x402, USDC on Base); 3 free calls a day. | $0.02 | Base | USDC | header | since 11-14 |
| GET | / | What does Medicare pay for this CPT or HCPCS code at this ZIP? Physician Fee Schedule facility and non-facility allowed amounts with the RVUs and GPCIs behind them, any US ZIP or Medicare locality, 2025 on, computed by Distill from CMS’s quarterly RVU files. Refreshed quarterly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day. | $0.01 | Base | USDC | header | since 11-14 |
| GET | / | Is this crypto address on OFAC’s SDN sanctions list? SDN entry, program, asset and list date for Bitcoin, Ethereum and EVM, Tron, Solana and other addresses, checked by Distill against OFAC’s own SDN file. Refreshed daily (live freshness: /status). $0.005 per call (x402, USDC on Base); 3 free calls a day. | $0.005 | Base | USDC | header | since 11-14 |
| POST | / | Are any of these crypto addresses on OFAC’s SDN sanctions list? Up to 100 addresses screened in one call, checked by Distill against OFAC’s own SDN file. Refreshed daily (live freshness: /status). $0.05 per call (x402, USDC on Base); 3 free calls a day. | $0.05 | Base | USDC | header | since 11-14 |
| GET | / | What is the sales tax rate at this US address, ZIP+4 or ZIP? The combined rate and each state, county, city and district rate in the 24 Streamlined Sales Tax states (WA, OH, MI, NJ, TN, …), computed by Distill from each state’s SST rate and boundary files. Refreshed quarterly (live freshness: /status). $0.005 per call (x402, USDC on Base); 3 free calls a day. | $0.005 | Base | USDC | header | since 11-14 |
| POST | / | What sales tax applies to each of these orders? Combined and per-jurisdiction rates for up to 100 US addresses, ZIP+4s or ZIPs in one call, 24 Streamlined Sales Tax states, computed by Distill from each state’s SST rate and boundary files. Refreshed quarterly (live freshness: /status). $0.1 per call (x402, USDC on Base); 3 free calls a day. | $0.10 | Base | USDC | header | since 11-14 |
Payment evidence
402 payload captured at . Check evidence JSON · Measurement methodology.
First of 9 payloads captured by the monitor.
301 lines, scroll inside
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/sanctions/address",
"mimeType": "application/json",
"description": "Is this crypto address on OFAC’s SDN sanctions list? SDN entry, program, asset and list date for Bitcoin, Ethereum and EVM, Tron, Solana and other addresses, checked by Distill against OFAC’s own SDN file. Refreshed daily (live freshness: /status). $0.005 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96"
}
},
"output": {
"type": "json",
"example": {
"data": {
"list": "OFAC SDN",
"listed": true,
"address": "0x098b716b8aaf21512996dc57eb0615e2383e2f96",
"matches": [
{
"asset": "ETH",
"chain": "Ethereum (EVM)",
"entry": {
"uid": 27307,
"name": "LAZARUS GROUP",
"type": "Entity",
"programs": [
"DPRK3"
]
},
"asset_name": "Ethereum",
"address_as_listed": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
"first_seen_publication": "2026-10-15"
}
],
"statement": "Listed on OFAC's SDN list as of 2026-10-15.",
"history_from": "2026-10-15",
"address_format": "evm",
"publication_date": "2026-10-15",
"previously_listed": []
}
}
}
},
"schema": {
"type": "object",
"$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": [
"address"
],
"properties": {
"address": {
"type": "string",
"pattern": "^\\S+$",
"maxLength": 128,
"minLength": 1
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"address",
"address_format",
"listed",
"list",
"publication_date",
"statement",
"matches",
"previously_listed",
"history_from"
],
"properties": {
"list": {
"type": "string",
"const": "OFAC SDN"
},
"listed": {
"type": "boolean"
},
"address": {
"type": "string"
},
"matches": {
"type": "array",
"items": {
"type": "object",
"required": [
"asset",
"asset_name",
"chain",
"address_as_listed",
"entry",
"first_seen_publication"
],
"properties": {
"asset": {
"type": "string"
},
"chain": {
"type": "string"
},
"entry": {
"type": "object",
"required": [
"uid",
"name",
"type",
"programs"
],
"properties": {
"uid": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"name": {
"type": "string"
},
"type": {
"type": "string"
},
"programs": {
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
},
"asset_name": {
"type": "string"
},
"address_as_listed": {
"type": "string"
},
"first_seen_publication": {
"type": "string"
}
},
"additionalProperties": false
}
},
"statement": {
"type": "string"
},
"history_from": {
"type": "string"
},
"address_format": {
"enum": [
"evm",
"bech32",
"other"
],
"type": "string"
},
"publication_date": {
"type": "string"
},
"previously_listed": {
"type": "array",
"items": {
"type": "object",
"required": [
"asset",
"asset_name",
"chain",
"address_as_listed",
"entry",
"first_seen_publication",
"last_seen_publication",
"removed_in_publication"
],
"properties": {
"asset": {
"type": "string"
},
"chain": {
"type": "string"
},
"entry": {
"type": "object",
"required": [
"uid",
"name",
"type",
"programs"
],
"properties": {
"uid": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"name": {
"type": "string"
},
"type": {
"type": "string"
},
"programs": {
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
},
"asset_name": {
"type": "string"
},
"address_as_listed": {
"type": "string"
},
"last_seen_publication": {
"type": "string"
},
"first_seen_publication": {
"type": "string"
},
"removed_in_publication": {
"type": "string"
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
} Other captured 402 responses (8)
Captured payload 2 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/tax/sales-rate",
"mimeType": "application/json",
"description": "What is the sales tax rate at this US address, ZIP+4 or ZIP? The combined rate and each state, county, city and district rate in the 24 Streamlined Sales Tax states (WA, OH, MI, NJ, TN, …), computed by Distill from each state’s SST rate and boundary files. Refreshed quarterly (live freshness: /status). $0.005 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"zip": "98101-3143",
"date": "2026-10-19"
}
},
"output": {
"type": "json",
"example": {
"data": {
"rate": "0.1055",
"state": "WA",
"matched": "zip4",
"combined": {
"general": {
"interstate": "0.1055",
"intrastate": "0.1055"
},
"food_drug": {
"interstate": "0.1055",
"intrastate": "0.1055"
}
},
"location": {
"zip": "98101",
"date": "2026-10-19",
"plus4": "3143",
"address": null
},
"agreement": {
"agreeing": 1,
"finer_records": 1
},
"alternate": [],
"effective": {
"to": "2027-03-31",
"from": "2026-01-01"
},
"components": [
{
"code": "53",
"type": "45",
"general": {
"interstate": "0.065",
"intrastate": "0.065"
},
"food_drug": {
"interstate": "0.065",
"intrastate": "0.065"
},
"type_name": "State Taxing Authority",
"effective_to": null,
"jurisdiction": "state",
"effective_from": "1983-03-01"
},
{
"code": "63000",
"type": "01",
"general": {
"interstate": "0.0405",
"intrastate": "0.0405"
},
"food_drug": {
"interstate": "0.0405",
"intrastate": "0.0405"
},
"type_name": "City",
"effective_to": "2027-03-31",
"jurisdiction": "place",
"effective_from": "2026-01-01"
}
],
"state_fips": "53",
"jurisdiction_codes": {
"place": "63000",
"county": null,
"specials": [],
"place_class": null,
"state_indicator": "53",
"composite_ser_code": "01726"
}
}
}
}
},
"schema": {
"type": "object",
"$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": [
"zip"
],
"properties": {
"zip": {
"type": "string",
"pattern": "^\\d{5}(-?\\d{4})?$"
},
"date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$"
},
"address": {
"type": "string",
"maxLength": 120,
"minLength": 3
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"location",
"state",
"state_fips",
"matched",
"rate",
"combined",
"components",
"jurisdiction_codes",
"alternate",
"effective",
"agreement"
],
"properties": {
"rate": {
"type": "string"
},
"state": {
"type": "string"
},
"matched": {
"enum": [
"address",
"zip4",
"zip5"
],
"type": "string"
},
"combined": {
"type": "object",
"required": [
"general",
"food_drug"
],
"properties": {
"general": {
"type": "object"
},
"food_drug": {
"type": "object"
}
},
"additionalProperties": false
},
"location": {
"type": "object",
"required": [
"zip",
"plus4",
"address",
"date"
],
"properties": {
"zip": {
"type": "string"
},
"date": {
"type": "string"
},
"plus4": {
"type": [
"string",
"null"
]
},
"address": {
"type": [
"string",
"null"
]
}
},
"additionalProperties": false
},
"agreement": {
"type": "object",
"required": [
"finer_records",
"agreeing"
],
"properties": {
"agreeing": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"finer_records": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
}
},
"additionalProperties": false
},
"alternate": {
"type": "array",
"items": {
"type": "object",
"required": [
"product",
"code",
"rate"
],
"properties": {
"code": {
"type": "string"
},
"rate": {
"type": "string"
},
"product": {
"type": "string"
}
},
"additionalProperties": false
}
},
"effective": {
"type": "object",
"required": [
"from",
"to"
],
"properties": {
"to": {
"type": [
"string",
"null"
]
},
"from": {
"type": "string"
}
},
"additionalProperties": false
},
"components": {
"type": "array",
"items": {
"type": "object",
"required": [
"jurisdiction",
"code",
"type",
"type_name",
"general",
"food_drug",
"effective_from",
"effective_to"
],
"properties": {
"code": {
"type": "string"
},
"type": {
"type": "string"
},
"general": {
"type": "object"
},
"food_drug": {
"type": "object"
},
"type_name": {
"type": "string"
},
"effective_to": {
"type": [
"string",
"null"
]
},
"jurisdiction": {
"enum": [
"state",
"county",
"place",
"special"
],
"type": "string"
},
"effective_from": {
"type": "string"
}
},
"additionalProperties": false
}
},
"state_fips": {
"type": "string"
},
"jurisdiction_codes": {
"type": "object",
"required": [
"state_indicator",
"county",
"place",
"place_class",
"composite_ser_code",
"specials"
],
"properties": {
"place": {
"type": [
"string",
"null"
]
},
"county": {
"type": [
"string",
"null"
]
},
"specials": {
"type": "array"
},
"place_class": {
"type": [
"string",
"null"
]
},
"state_indicator": {
"type": "string"
},
"composite_ser_code": {
"type": [
"string",
"null"
]
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 3 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/medicare/pfs/rate",
"mimeType": "application/json",
"description": "What does Medicare pay for this CPT or HCPCS code at this ZIP? Physician Fee Schedule facility and non-facility allowed amounts with the RVUs and GPCIs behind them, any US ZIP or Medicare locality, 2025 on, computed by Distill from CMS’s quarterly RVU files. Refreshed quarterly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"zip": "80218",
"code": "99213"
}
},
"output": {
"type": "json",
"example": {
"data": {
"code": "99213",
"gpci": {
"mp": "0.781",
"pe": "1.064",
"work": "1.012"
},
"rvus": {
"mp": "0.09",
"work": "1.30",
"facility_na": false,
"pe_facility": "0.33",
"nonfacility_na": false,
"pe_nonfacility": "1.46"
},
"priced": true,
"status": "A",
"history": [
{
"status": "A",
"release": "2026D",
"facility": "58.02",
"nonfacility": "98.18",
"effective_from": "2026-10-01"
},
{
"status": "A",
"release": "2026C",
"facility": "58.02",
"nonfacility": "98.18",
"effective_from": "2026-07-01"
},
{
"status": "A",
"release": "2026B",
"facility": "58.02",
"nonfacility": "98.18",
"effective_from": "2026-04-01"
},
{
"status": "A",
"release": "2026A",
"facility": "58.02",
"nonfacility": "98.18",
"effective_from": "2026-01-01"
},
{
"status": "A",
"release": "2025D",
"facility": "64.48",
"nonfacility": "91.04",
"effective_from": "2025-10-01"
},
{
"status": "A",
"release": "2025C",
"facility": "64.48",
"nonfacility": "91.04",
"effective_from": "2025-07-01"
},
{
"status": "A",
"release": "2025B",
"facility": "64.48",
"nonfacility": "91.04",
"effective_from": "2025-04-01"
},
{
"status": "A",
"release": "2025A",
"facility": "64.48",
"nonfacility": "91.04",
"effective_from": "2025-01-01"
}
],
"release": {
"id": "2026D",
"released": "2026-08-26",
"effective_to": null,
"effective_from": "2026-10-01"
},
"facility": {
"amount": "58.02",
"amount_qp": "58.31",
"opps_capped": false,
"fee_before_cap": null,
"limiting_charge": "63.39"
},
"locality": {
"id": "04112-01",
"mac": "04112",
"name": "COLORADO",
"state": "CO",
"counties": "ALL COUNTIES",
"locality": "01"
},
"location": {
"zip": "80218",
"plus4": null,
"rural": null,
"matched": "zip5"
},
"modifier": null,
"code_type": "CPT",
"indicators": {
"pctc": "0",
"co_surgeons": "0",
"global_days": "XXX",
"team_surgery": "0",
"assistant_surgery": "0",
"bilateral_surgery": "0",
"multiple_procedure": "0"
},
"description": null,
"nonfacility": {
"amount": "98.18",
"amount_qp": "98.67",
"opps_capped": false,
"fee_before_cap": null,
"limiting_charge": "107.26"
},
"status_meaning": "Active: separately paid under the fee schedule",
"conversion_factor": {
"qp": "33.5675",
"nonqp": "33.4009"
}
}
}
}
},
"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": {
"zip": {
"type": "string",
"pattern": "^\\d{5}(-?\\d{4})?$"
},
"code": {
"type": "string",
"pattern": "^[0-9A-Za-z]{5}$"
},
"date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$"
},
"release": {
"type": "string",
"pattern": "^\\d{4}[A-Da-d]$"
},
"setting": {
"enum": [
"facility",
"nonfacility"
],
"type": "string"
},
"locality": {
"type": "string",
"pattern": "^\\d{5}-\\d{2}$"
},
"modifier": {
"type": "string",
"pattern": "^[0-9A-Za-z]{2}$"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"code",
"modifier",
"code_type",
"description",
"status",
"status_meaning",
"priced",
"release",
"locality",
"location",
"rvus",
"gpci",
"conversion_factor",
"nonfacility",
"facility",
"indicators",
"history"
],
"properties": {
"code": {
"type": "string"
},
"gpci": {
"type": "object"
},
"rvus": {
"type": "object"
},
"priced": {
"type": "boolean"
},
"status": {
"type": "string"
},
"history": {
"type": "array"
},
"release": {
"type": "object"
},
"facility": {
"anyOf": [
{
"type": "object"
},
{
"type": "null"
}
]
},
"locality": {
"type": "object"
},
"location": {
"type": "object"
},
"modifier": {
"type": [
"string",
"null"
]
},
"code_type": {
"enum": [
"CPT",
"HCPCS"
],
"type": "string"
},
"indicators": {
"type": "object"
},
"description": {
"type": [
"string",
"null"
]
},
"nonfacility": {
"anyOf": [
{
"type": "object"
},
{
"type": "null"
}
]
},
"status_meaning": {
"type": "string"
},
"conversion_factor": {
"type": "object"
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 4 of 9
{
"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/medicare/partd/coverage",
"mimeType": "application/json",
"description": "Which Medicare Part D plans in this county cover this drug, at what tier and cost? Every PDP and Medicare Advantage drug plan with tier, prior authorization, step therapy, quantity limit, premium and copay, plan years 2026 and 2027, computed by Distill from CMS’s monthly formulary files. Refreshed monthly (live freshness: /status). $0.02 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 2,
"rxcui": "617311",
"state": "CO",
"county": "Denver",
"plan_year": 2027
}
},
"output": {
"type": "json",
"example": {
"data": {
"drug": {
"ndc": null,
"rxcui": "617311"
},
"plans": [
{
"snp": null,
"drug": {
"tier": 1,
"step_therapy": false,
"quantity_limit": null,
"negotiated_drug": false,
"terms_vary_by_ndc": false,
"prior_authorization": false
},
"kind": "MA",
"plan": "H0028-063-000",
"premium": "0.00",
"plan_name": "Humana Essentials Plus Giveback (HMO)",
"deductible": "50.00",
"cost_30_day": {
"tier": 1,
"specialty": false,
"standard_mail": {
"type": "copay",
"amount": "10.00"
},
"preferred_mail": {
"type": "copay",
"amount": "0.00"
},
"standard_retail": {
"type": "copay",
"amount": "0.00"
},
"preferred_retail": {
"type": "not_offered",
"amount": null
},
"deductible_applies": false
},
"contract_name": "CHA HMO, INC."
},
{
"snp": "dual-eligible",
"drug": {
"tier": 1,
"step_therapy": false,
"quantity_limit": null,
"negotiated_drug": false,
"terms_vary_by_ndc": false,
"prior_authorization": false
},
"kind": "MA",
"plan": "H0028-078-000",
"premium": "0.00",
"plan_name": "Humana Dual Select H0028-078 (HMO D-SNP)",
"deductible": "700.00",
"cost_30_day": {
"tier": 1,
"specialty": false,
"standard_mail": {
"type": "copay",
"amount": "10.00"
},
"preferred_mail": {
"type": "copay",
"amount": "0.00"
},
"standard_retail": {
"type": "copay",
"amount": "0.00"
},
"preferred_retail": {
"type": "not_offered",
"amount": null
},
"deductible_applies": false
},
"contract_name": "CHA HMO, INC."
}
],
"location": {
"state": "CO",
"county": "Denver",
"ma_region": "20",
"pdp_region": "27",
"county_code": "06150"
},
"file_date": "2026-10-08",
"plan_year": 2027,
"plans_in_area": 67,
"plans_covering": 67
}
}
}
},
"schema": {
"type": "object",
"$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": {
"ndc": {
"type": "string",
"pattern": "^\\d{11}$"
},
"kind": {
"enum": [
"pdp",
"ma",
"all"
],
"type": "string"
},
"limit": {
"type": "integer",
"maximum": 100,
"minimum": 1
},
"rxcui": {
"type": "string",
"pattern": "^\\d{1,10}$"
},
"state": {
"type": "string",
"pattern": "^[A-Za-z]{2}$"
},
"county": {
"type": "string",
"maxLength": 60,
"minLength": 2
},
"plan_year": {
"type": "integer",
"maximum": 2100,
"minimum": 2000
},
"county_code": {
"type": "string",
"pattern": "^\\d{5}$"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"plan_year",
"file_date",
"drug",
"location",
"plans_in_area",
"plans_covering",
"plans"
],
"properties": {
"drug": {
"type": "object",
"required": [
"rxcui",
"ndc"
],
"properties": {
"ndc": {
"type": [
"string",
"null"
]
},
"rxcui": {
"type": "string"
}
},
"additionalProperties": false
},
"plans": {
"type": "array",
"items": {
"type": "object",
"required": [
"plan",
"plan_name",
"contract_name",
"kind",
"snp",
"premium",
"deductible",
"drug",
"cost_30_day"
],
"properties": {
"snp": {
"type": [
"string",
"null"
]
},
"drug": {
"type": "object",
"required": [
"tier",
"prior_authorization",
"step_therapy",
"quantity_limit",
"negotiated_drug",
"terms_vary_by_ndc"
],
"properties": {
"tier": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"step_therapy": {
"type": "boolean"
},
"quantity_limit": {
"anyOf": [
{
"type": "object"
},
{
"type": "null"
}
]
},
"negotiated_drug": {
"type": "boolean"
},
"terms_vary_by_ndc": {
"type": "boolean"
},
"prior_authorization": {
"type": "boolean"
}
},
"additionalProperties": false
},
"kind": {
"type": "string"
},
"plan": {
"type": "string"
},
"premium": {
"type": [
"string",
"null"
]
},
"plan_name": {
"type": "string"
},
"deductible": {
"type": [
"string",
"null"
]
},
"cost_30_day": {
"anyOf": [
{
"type": "object",
"required": [
"tier",
"specialty",
"deductible_applies",
"preferred_retail",
"standard_retail",
"preferred_mail",
"standard_mail"
],
"properties": {
"tier": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"specialty": {
"type": "boolean"
},
"standard_mail": {
"type": "object"
},
"preferred_mail": {
"type": "object"
},
"standard_retail": {
"type": "object"
},
"preferred_retail": {
"type": "object"
},
"deductible_applies": {
"type": "boolean"
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
},
"contract_name": {
"type": "string"
}
},
"additionalProperties": false
}
},
"location": {
"type": "object",
"required": [
"county_code",
"state",
"county",
"ma_region",
"pdp_region"
],
"properties": {
"state": {
"type": "string"
},
"county": {
"type": "string"
},
"ma_region": {
"type": "string"
},
"pdp_region": {
"type": "string"
},
"county_code": {
"type": "string"
}
},
"additionalProperties": false
},
"file_date": {
"type": "string"
},
"plan_year": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"plans_in_area": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"plans_covering": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 5 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/drug/nadac",
"mimeType": "application/json",
"description": "What do US pharmacies pay for this drug? CMS’s National Average Drug Acquisition Cost (NADAC) per unit for an NDC, the generic’s NADAC for a brand and the weekly price history since January 2025, from CMS’s NADAC files on data.medicaid.gov. Refreshed weekly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"ndc": "00378410591"
}
},
"output": {
"type": "json",
"example": {
"data": {
"ndc": "00378410591",
"otc": false,
"listed": true,
"current": {
"as_of": "2026-10-21",
"effective_date": "2026-10-21",
"nadac_per_unit": "0.55226",
"explanation_codes": [
"1"
]
},
"history": [
{
"weeks": 1,
"last_as_of": "2026-10-21",
"first_as_of": "2026-10-21",
"effective_date": "2026-10-21",
"nadac_per_unit": "0.55226"
},
{
"weeks": 4,
"last_as_of": "2026-10-14",
"first_as_of": "2026-09-23",
"effective_date": "2026-09-23",
"nadac_per_unit": "0.54555"
},
{
"weeks": 5,
"last_as_of": "2026-09-16",
"first_as_of": "2026-08-19",
"effective_date": "2026-08-19",
"nadac_per_unit": "0.53801"
},
{
"weeks": 4,
"last_as_of": "2026-08-12",
"first_as_of": "2026-07-22",
"effective_date": "2026-07-22",
"nadac_per_unit": "0.55679"
},
{
"weeks": 5,
"last_as_of": "2026-07-15",
"first_as_of": "2026-06-17",
"effective_date": "2026-06-17",
"nadac_per_unit": "0.60124"
},
{
"weeks": 4,
"last_as_of": "2026-06-10",
"first_as_of": "2026-05-20",
"effective_date": "2026-05-20",
"nadac_per_unit": "0.64093"
},
{
"weeks": 4,
"last_as_of": "2026-05-13",
"first_as_of": "2026-04-22",
"effective_date": "2026-04-22",
"nadac_per_unit": "0.65861"
},
{
"weeks": 5,
"last_as_of": "2026-04-15",
"first_as_of": "2026-03-18",
"effective_date": "2026-03-18",
"nadac_per_unit": "0.65238"
},
{
"weeks": 4,
"last_as_of": "2026-03-11",
"first_as_of": "2026-02-18",
"effective_date": "2026-02-18",
"nadac_per_unit": "0.64179"
},
{
"weeks": 4,
"last_as_of": "2026-02-11",
"first_as_of": "2026-01-21",
"effective_date": "2026-01-21",
"nadac_per_unit": "0.63114"
},
{
"weeks": 5,
"last_as_of": "2026-01-14",
"first_as_of": "2025-12-17",
"effective_date": "2025-12-17",
"nadac_per_unit": "0.62468"
},
{
"weeks": 4,
"last_as_of": "2025-12-10",
"first_as_of": "2025-11-19",
"effective_date": "2025-11-19",
"nadac_per_unit": "0.62091"
},
{
"weeks": 4,
"last_as_of": "2025-11-12",
"first_as_of": "2025-10-22",
"effective_date": "2025-10-22",
"nadac_per_unit": "0.64489"
},
{
"weeks": 5,
"last_as_of": "2025-10-15",
"first_as_of": "2025-09-17",
"effective_date": "2025-09-17",
"nadac_per_unit": "0.67127"
},
{
"weeks": 4,
"last_as_of": "2025-09-10",
"first_as_of": "2025-08-20",
"effective_date": "2025-08-20",
"nadac_per_unit": "0.68204"
},
{
"weeks": 4,
"last_as_of": "2025-08-13",
"first_as_of": "2025-07-23",
"effective_date": "2025-07-23",
"nadac_per_unit": "0.67582"
},
{
"weeks": 5,
"last_as_of": "2025-07-16",
"first_as_of": "2025-06-18",
"effective_date": "2025-06-18",
"nadac_per_unit": "0.66208"
},
{
"weeks": 4,
"last_as_of": "2025-06-11",
"first_as_of": "2025-05-21",
"effective_date": "2025-05-21",
"nadac_per_unit": "0.6502"
},
{
"weeks": 4,
"last_as_of": "2025-05-14",
"first_as_of": "2025-04-23",
"effective_date": "2025-04-23",
"nadac_per_unit": "0.63617"
},
{
"weeks": 5,
"last_as_of": "2025-04-16",
"first_as_of": "2025-03-19",
"effective_date": "2025-03-19",
"nadac_per_unit": "0.61614"
},
{
"weeks": 4,
"last_as_of": "2025-03-12",
"first_as_of": "2025-02-19",
"effective_date": "2025-02-19",
"nadac_per_unit": "0.60252"
},
{
"weeks": 4,
"last_as_of": "2025-02-12",
"first_as_of": "2025-01-22",
"effective_date": "2025-01-22",
"nadac_per_unit": "0.59565"
},
{
"weeks": 3,
"last_as_of": "2025-01-15",
"first_as_of": "2025-01-01",
"effective_date": "2024-12-18",
"nadac_per_unit": "0.60042"
}
],
"description": "ABACAVIR 300 MG TABLET",
"last_listed": {
"as_of": "2026-10-21",
"effective_date": "2026-10-21",
"nadac_per_unit": "0.55226"
},
"pricing_unit": "EA",
"pharmacy_type": "C/I",
"classification": "G",
"same_description": {
"max": "0.55226",
"min": "0.55226",
"ndcs": 12
},
"corresponding_generic": null
}
}
}
},
"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": [
"ndc"
],
"properties": {
"ndc": {
"type": "string",
"pattern": "^(\\d{11}|\\d{4,5}-\\d{3,4}-\\d{1,2})$"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"ndc",
"description",
"pricing_unit",
"otc",
"classification",
"pharmacy_type",
"listed",
"current",
"last_listed",
"corresponding_generic",
"same_description",
"history"
],
"properties": {
"ndc": {
"type": "string"
},
"otc": {
"type": "boolean"
},
"listed": {
"type": "boolean",
"description": "Whether the NDC is in the latest weekly file."
},
"current": {
"anyOf": [
{
"type": "object",
"required": [
"nadac_per_unit",
"effective_date",
"as_of",
"explanation_codes"
],
"properties": {
"as_of": {
"type": "string"
},
"effective_date": {
"type": "string"
},
"nadac_per_unit": {
"type": "string"
},
"explanation_codes": {
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
},
"history": {
"type": "array",
"items": {
"type": "object",
"required": [
"nadac_per_unit",
"effective_date",
"first_as_of",
"last_as_of",
"weeks"
],
"properties": {
"weeks": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"last_as_of": {
"type": "string"
},
"first_as_of": {
"type": "string"
},
"effective_date": {
"type": "string"
},
"nadac_per_unit": {
"type": "string"
}
},
"additionalProperties": false
},
"description": "Price periods, newest first: runs of weekly files with the same NADAC."
},
"description": {
"type": "string"
},
"last_listed": {
"type": "object",
"required": [
"nadac_per_unit",
"effective_date",
"as_of"
],
"properties": {
"as_of": {
"type": "string"
},
"effective_date": {
"type": "string"
},
"nadac_per_unit": {
"type": "string"
}
},
"additionalProperties": false
},
"pricing_unit": {
"type": "string",
"description": "EA, ML or GM: the unit the NADAC is per."
},
"pharmacy_type": {
"type": "string"
},
"classification": {
"type": "string",
"description": "G generic, B brand (as CMS classifies for rate setting)."
},
"same_description": {
"type": "object",
"required": [
"ndcs",
"min",
"max"
],
"properties": {
"max": {
"type": "string"
},
"min": {
"type": "string"
},
"ndcs": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
}
},
"additionalProperties": false
},
"corresponding_generic": {
"anyOf": [
{
"type": "object",
"required": [
"nadac_per_unit",
"effective_date"
],
"properties": {
"effective_date": {
"type": [
"string",
"null"
]
},
"nadac_per_unit": {
"type": "string"
}
},
"additionalProperties": false
},
{
"type": "null"
}
]
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 6 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/drug/nadac/search",
"mimeType": "application/json",
"description": "Which NDCs match this drug name, and what do pharmacies pay for them? NADAC search by name (e.g. “atorvastatin 40”) with NDC counts and current per-unit cost ranges, from CMS’s weekly NADAC file. Refreshed weekly (live freshness: /status). $0.01 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "atorvastatin 40"
}
},
"output": {
"type": "json",
"example": {
"data": {
"as_of": "2026-10-21",
"query": "atorvastatin 40",
"matches": [
{
"ndcs": 69,
"description": "ATORVASTATIN 40 MG TABLET",
"sample_ndcs": [
"00093505810",
"00093505898",
"00378395205",
"00378395277",
"00480358710"
],
"pricing_unit": "EA",
"classification": "G",
"effective_date": "2026-10-21",
"nadac_per_unit": {
"max": "0.03688",
"min": "0.03688"
}
}
]
}
}
}
},
"schema": {
"type": "object",
"$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": [
"name"
],
"properties": {
"name": {
"type": "string",
"maxLength": 80,
"minLength": 2
},
"limit": {
"type": "integer",
"maximum": 25,
"minimum": 1
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"data": {
"type": "object",
"required": [
"query",
"as_of",
"matches"
],
"properties": {
"as_of": {
"type": "string"
},
"query": {
"type": "string"
},
"matches": {
"type": "array",
"items": {
"type": "object",
"required": [
"description",
"pricing_unit",
"classification",
"ndcs",
"nadac_per_unit",
"effective_date",
"sample_ndcs"
],
"properties": {
"ndcs": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"description": {
"type": "string"
},
"sample_ndcs": {
"type": "array",
"items": {
"type": "string"
}
},
"pricing_unit": {
"type": "string"
},
"classification": {
"type": "string"
},
"effective_date": {
"type": "string"
},
"nadac_per_unit": {
"type": "object",
"required": [
"min",
"max"
],
"properties": {
"max": {
"type": "string"
},
"min": {
"type": "string"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 7 of 9
{
"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. Refreshed monthly (live freshness: /status). $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"
},
"totals": {
"type": "object"
},
"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
}Captured payload 8 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/tax/sales-rate/batch",
"mimeType": "application/json",
"description": "What sales tax applies to each of these orders? Combined and per-jurisdiction rates for up to 100 US addresses, ZIP+4s or ZIPs in one call, 24 Streamlined Sales Tax states, computed by Distill from each state’s SST rate and boundary files. Refreshed quarterly (live freshness: /status). $0.1 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"locations": [
{
"zip": "98101-3143",
"date": "2026-10-19"
},
{
"zip": "90210"
}
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"data": {
"results": [
{
"ok": true,
"index": 0,
"answer": {
"rate": "0.1055",
"state": "WA",
"matched": "zip4",
"combined": {
"general": {
"interstate": "0.1055",
"intrastate": "0.1055"
},
"food_drug": {
"interstate": "0.1055",
"intrastate": "0.1055"
}
},
"location": {
"zip": "98101",
"date": "2026-10-19",
"plus4": "3143",
"address": null
},
"agreement": {
"agreeing": 1,
"finer_records": 1
},
"alternate": [],
"effective": {
"to": "2027-03-31",
"from": "2026-01-01"
},
"components": [
{
"code": "53",
"type": "45",
"general": {
"interstate": "0.065",
"intrastate": "0.065"
},
"food_drug": {
"interstate": "0.065",
"intrastate": "0.065"
},
"type_name": "State Taxing Authority",
"effective_to": null,
"jurisdiction": "state",
"effective_from": "1983-03-01"
},
{
"code": "63000",
"type": "01",
"general": {
"interstate": "0.0405",
"intrastate": "0.0405"
},
"food_drug": {
"interstate": "0.0405",
"intrastate": "0.0405"
},
"type_name": "City",
"effective_to": "2027-03-31",
"jurisdiction": "place",
"effective_from": "2026-01-01"
}
],
"state_fips": "53",
"jurisdiction_codes": {
"place": "63000",
"county": null,
"specials": [],
"place_class": null,
"state_indicator": "53",
"composite_ser_code": "01726"
}
}
},
{
"ok": false,
"error": {
"code": "not_covered",
"message": "90210 is not in any Streamlined Sales Tax member state's boundary file on 2026-10-19"
},
"index": 1
}
]
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"locations"
],
"properties": {
"locations": {
"type": "array",
"items": {
"type": "object",
"required": [
"zip"
],
"properties": {
"zip": {
"type": "string",
"pattern": "^\\d{5}(-?\\d{4})?$",
"description": "A 5-digit ZIP code or a ZIP+4 (98101-3143 or 981013143)."
},
"date": {
"type": "string",
"pattern": "^\\d{4}-\\d{2}-\\d{2}$",
"description": "The sale date, YYYY-MM-DD (default: today, UTC). From the first day of the previous quarter onward."
},
"address": {
"type": "string",
"maxLength": 120,
"minLength": 3,
"description": "Optional street address line with house number, e.g. \"1010 E Alder St\" or \"PO Box 12\"; matched against the state address records when it publishes them."
}
},
"additionalProperties": false
},
"maxItems": 100,
"minItems": 1
}
},
"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",
"properties": {
"data": {
"type": "object",
"required": [
"results"
],
"properties": {
"results": {
"type": "array",
"items": {
"oneOf": [
{
"type": "object",
"required": [
"index",
"ok",
"answer"
],
"properties": {
"ok": {
"type": "boolean",
"const": true
},
"index": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"answer": {
"type": "object",
"required": [
"location",
"state",
"state_fips",
"matched",
"rate",
"combined",
"components",
"jurisdiction_codes",
"alternate",
"effective",
"agreement"
],
"properties": {
"rate": {
"type": "string"
},
"state": {
"type": "string"
},
"matched": {
"enum": [
"address",
"zip4",
"zip5"
],
"type": "string"
},
"combined": {
"type": "object"
},
"location": {
"type": "object"
},
"agreement": {
"type": "object"
},
"alternate": {
"type": "array"
},
"effective": {
"type": "object"
},
"components": {
"type": "array"
},
"state_fips": {
"type": "string"
},
"jurisdiction_codes": {
"type": "object"
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
{
"type": "object",
"required": [
"index",
"ok",
"error"
],
"properties": {
"ok": {
"type": "boolean",
"const": false
},
"error": {
"type": "object",
"required": [
"code",
"message"
],
"properties": {
"code": {
"type": "string"
},
"message": {
"type": "string"
}
},
"additionalProperties": false
},
"index": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
}
},
"additionalProperties": false
}
]
}
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Captured payload 9 of 9
{
"error": "payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xE6900aE625875b748f56Fb45C3e06a59Be8870DF",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://data.spencermcw.com/v1/sanctions/address/batch",
"mimeType": "application/json",
"description": "Are any of these crypto addresses on OFAC’s SDN sanctions list? Up to 100 addresses screened in one call, checked by Distill against OFAC’s own SDN file. Refreshed daily (live freshness: /status). $0.05 per call (x402, USDC on Base); 3 free calls a day."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"addresses": [
"0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
"0x098b716b8aaf21512996dc57eb0615e2383e2f97"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"data": {
"listed": 1,
"results": [
{
"ok": true,
"index": 0,
"answer": {
"list": "OFAC SDN",
"listed": true,
"address": "0x098b716b8aaf21512996dc57eb0615e2383e2f96",
"matches": [
{
"asset": "ETH",
"chain": "Ethereum (EVM)",
"entry": {
"uid": 27307,
"name": "LAZARUS GROUP",
"type": "Entity",
"programs": [
"DPRK3"
]
},
"asset_name": "Ethereum",
"address_as_listed": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
"first_seen_publication": "2026-10-15"
}
],
"statement": "Listed on OFAC's SDN list as of 2026-10-15.",
"history_from": "2026-10-15",
"address_format": "evm",
"publication_date": "2026-10-15",
"previously_listed": []
}
},
{
"ok": true,
"index": 1,
"answer": {
"list": "OFAC SDN",
"listed": false,
"address": "0x098b716b8aaf21512996dc57eb0615e2383e2f97",
"matches": [],
"statement": "Not listed as a digital currency address on OFAC's SDN list as of 2026-10-15.",
"history_from": "2026-10-15",
"address_format": "evm",
"publication_date": "2026-10-15",
"previously_listed": []
}
}
],
"publication_date": "2026-10-15"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"addresses"
],
"properties": {
"addresses": {
"type": "array",
"items": {
"type": "string"
},
"maxItems": 100,
"minItems": 1
}
},
"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",
"properties": {
"data": {
"type": "object",
"required": [
"publication_date",
"listed",
"results"
],
"properties": {
"listed": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"results": {
"type": "array",
"items": {
"anyOf": [
{
"type": "object",
"required": [
"index",
"ok",
"answer"
],
"properties": {
"ok": {
"type": "boolean",
"const": true
},
"index": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"answer": {
"type": "object",
"required": [
"address",
"address_format",
"listed",
"list",
"publication_date",
"statement",
"matches",
"previously_listed",
"history_from"
],
"properties": {
"list": {
"type": "string",
"const": "OFAC SDN"
},
"listed": {
"type": "boolean"
},
"address": {
"type": "string"
},
"matches": {
"type": "array",
"items": {
"type": "object",
"required": [
"asset",
"asset_name",
"chain",
"address_as_listed",
"entry",
"first_seen_publication"
],
"properties": {
"asset": {
"type": "string"
},
"chain": {
"type": "string"
},
"entry": {
"type": "object",
"required": [
"uid",
"name",
"type",
"programs"
],
"properties": {
"uid": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"name": {
"type": "string"
},
"type": {
"type": "string"
},
"programs": {
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
},
"asset_name": {
"type": "string"
},
"address_as_listed": {
"type": "string"
},
"first_seen_publication": {
"type": "string"
}
},
"additionalProperties": false
}
},
"statement": {
"type": "string"
},
"history_from": {
"type": "string"
},
"address_format": {
"enum": [
"evm",
"bech32",
"other"
],
"type": "string"
},
"publication_date": {
"type": "string"
},
"previously_listed": {
"type": "array",
"items": {
"type": "object",
"required": [
"asset",
"asset_name",
"chain",
"address_as_listed",
"entry",
"first_seen_publication",
"last_seen_publication",
"removed_in_publication"
],
"properties": {
"asset": {
"type": "string"
},
"chain": {
"type": "string"
},
"entry": {
"type": "object",
"required": [
"uid",
"name",
"type",
"programs"
],
"properties": {
"uid": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
},
"name": {
"type": "string"
},
"type": {
"type": "string"
},
"programs": {
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
},
"asset_name": {
"type": "string"
},
"address_as_listed": {
"type": "string"
},
"last_seen_publication": {
"type": "string"
},
"first_seen_publication": {
"type": "string"
},
"removed_in_publication": {
"type": "string"
}
},
"additionalProperties": false
}
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
{
"type": "object",
"required": [
"index",
"ok",
"error"
],
"properties": {
"ok": {
"type": "boolean",
"const": false
},
"error": {
"type": "object",
"required": [
"code",
"message"
],
"properties": {
"code": {
"type": "string"
},
"message": {
"type": "string"
}
},
"additionalProperties": false
},
"index": {
"type": "integer",
"maximum": 9007199254740991,
"minimum": -9007199254740991
}
},
"additionalProperties": false
}
]
}
},
"publication_date": {
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Can I trust it score from our own monitoring
score from our own monitoring
96/100 Strong
#17 of 499 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.
- Reliability
- 100% uptime since 11-14
- Compliance
- A 14/14 checks pass
- Price
- $0.005 to $0.10 p42 in Data
- Risk
- clean no risk flag
- Traction
- ---
14/14 compliance checks
- 402 payload captured
- accepts[] array present
- payTo address recoverable
- payTo at accepts[0].payTo (conformant shape)
- payTo is a valid on-chain address
- atomic price declared
- atomic price in a sane range
- asset (token) address declared
- network resolves to CAIP-2
- payment scheme declared
- served over HTTPS
- declares the current x402 version (2)
- EIP-712 domain parameters present on every EVM entry
- x402 v2 envelope delivered in the payment-required header
402 terms unchanged since 2026-11-14. Last up 2026-11-14.
── Site signals
- homepage reachable
- openapi doc
- pricing page
- llms.txt
- robots.txt
- terms page
How the score works
What the score read on this service: status online, 100% uptime, latest daily rollup (no 30d window yet), 107ms response p95, x402 compliance 14 of 14, $0.005 price against the category. Each of those is measured, and each is published in full below.
The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.
Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.
It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 499 listings, this one among them: the same 499 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.
All measured facts
What it does
Answers narrow US public-data questions for AI agents: the sales-tax rate at an address or ZIP+4 (24 Streamlined Sales Tax states), what Medicare pays for a CPT code at a ZIP, which Part D plans cover a drug, NADAC drug acquisition costs, Colorado hospital prices, and whether a crypto address is on OFAC's SDN list. Every answer cites its source files with sha256, an as-of time and a computed confidence. Pay per call in USDC on Base; a small free tier needs no key.
Distill is a listed x402 Data API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.
Assessment computed at . Latest service check observed at . Service data JSON · Measurement methodology.
Page rendered at . This response time is separate from the observation and computation times attached to each measurement.
Latest endpoint observation: . Latest price capture: . Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.
Assessment computed at . Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.
Observed daily coverage: 2026-10-16 to 2026-11-14 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.
Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.
x402 List home · Services · Data
- uptime · latest daily rollup
- -
- uptime 7d
- -
- uptime 30d
- -
- uptime 90d
- -
- response p95
- 107ms
- avg response
- 107ms
- total checks
- 1
Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.
- price (min)
- $0.005
- price (max)
- $0.10
- category percentile (min)
- p42 in Data
- category percentile (max)
- p70 in Data
- endpoints / prices
- 9 / 5
- model
- tiered
- stability
- 100%
No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.
- domain age
- 3249d
- registrar
- GoDaddy.com, LLC
- hosting
- custom
- domain created
- 2017-12-21
Identity facts, not a risk score.
On-chain traction has not been assessed for this service yet.
- member since
- 2026-11-14
Recent checks
| Checked at (UTC) | Status | HTTP | Response | Endpoints |
|---|---|---|---|---|
| Online | 402 | 149ms | 9 | |
| Online | 402 | 218ms | 9 | |
| Online | 402 | 750ms | 9 | |
| Online | 402 | 482ms | 9 | |
| Online | 402 | 604ms | 9 | |
| Online | 402 | 839ms | 9 | |
| Online | 402 | 265ms | 9 | |
| Online | 402 | 209ms | 9 | |
| Online | 402 | 189ms | 9 | |
| Online | 402 | 200ms | 9 | |
| Online | 402 | 227ms | 9 | |
| Online | 402 | 178ms | 9 | |
| Online | 402 | 351ms | 9 | |
| Online | 402 | 155ms | 9 | |
| Online | 402 | 116ms | 9 | |
| Online | 402 | 99ms | 9 | |
| Online | 402 | 140ms | 9 | |
| Online | 402 | 141ms | 9 |
Changes0 in 30d
No changes recorded in the last 30 days.
Over time
On-chain volume
On-chain traction has not been assessed for this service yet.
Uptime no completed-day data
- Uptime
- no completed-day data
On-chain traction has not been assessed for this service yet.
More charts
Response time daily average, ms min 285ms, avg 285ms, max 285ms
10-16 to 11-14* UTC
Each series spans only the dates it has data for. Every series is also served as JSON at /api, /scores, /volume and /buyers.
Values
* today so far, partial (UTC).
The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.
Assessment history last recorded at . Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.
| Day | Uptime | Response | Compliance | Price percentile | Site signals |
|---|---|---|---|---|---|
| 2026-11-14* | 100% | 284.84ms | 14/14 | p42 | 5/6 |
Alternatives in Data
5 of 498 other ranked services in Data, ordered by the same measured score.
Own this service?
Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.
Update this listingEarn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.
Verify this service ($0.25)Embed a badge
HTML
<a href="https://x402-list.com/services/ distill? utm_source=badge& utm_medium=referral& utm_campaign=embed"> <img src="https://x402-list.com/ badge/ distill.svg" alt="Distill listed on x402-list" height="28"> </a>
Markdown
[](https://x402-list.com/ services/ distill? utm_source=badge& utm_medium=referral& utm_campaign=embed)
HTML, live uptime variant
<a href="https://x402-list.com/services/ distill? utm_source=badge& utm_medium=referral& utm_campaign=embed"> <img src="https://x402-list.com/ badge/ distill.svg? data=uptime" alt="Distill uptime on x402-list" height="28"> </a>
Delisting
To request delisting, email info@x402-list.com with the service name, slug, or URL. Removal is free and does not require proof of ownership. See all free email requests.