← The evidence ledger
Evidence row 751147
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.findmydirectdoctor.com/v1/hospital-prices/search
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3d623c3fce080b56229d00448178d1fc69e0c3ca9b29a28a15f93486f6cfb187
- Leaf
- 0xd1a1af9921fa3542efb676c95216ef95a0c087d2e8f04499880bf9d9becbfe51
What was observed
{
"endpoints": [
[
"x402",
"https://api.findmydirectdoctor.com/v1/hospital-prices/search"
]
],
"name": "FindMyDirectDoctor Directory API",
"owner_address": "0xdf0102f7e02be8e80212698c38180adae3e01365",
"raw": {
"accepts": [
{
"amount": "30000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0xdF0102F7E02be8e80212698C38180ADAE3e01365",
"scheme": "exact"
}
],
"description": "US hospital self-pay (cash) prices posted under the federal price transparency rule. Search 28 common services (imaging, blood tests, emergency room visit levels, EKG, colonoscopy) by CPT or HCPCS billing code or plain words, near a ZIP code, city and state, or latitude/longitude. Returns each hospital's posted cash price, distance, price file date, data flag and financial assistance (charity care) link, plus the area median. Facility portion only; final bills can differ.",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"code": "70551",
"limit": 2,
"radius_miles": 25,
"sort": "price",
"zip": "66210"
},
"type": "http"
},
"output": {
"example": {
"area_prices": {
"high_usd": 13016.93,
"low_usd": 224,
"median_usd": 3152.4,
"n_posted": 19,
"n_used": 18,
"note": "A median needs 5 or more distinct hospital prices and a 25th to 75th percentile range needs 10 or more; otherwise those fields are null. Prices flagged unusual are left out.",
"p25_usd": 548.23,
"p75_usd": 4233.83,
"scope": "hospitals within 25 miles",
"unusual_left_out": 1
},
"data_as_of": "2026-10-02",
"disclaimer": "Posted hospital self-pay prices for the facility portion only. Final bills can differ. Confirm with the hospital.",
"flag_key": {},
"hospital_coverage": {
"hospitals_by_category": {
"colonoscopy": 10,
"emergency_room": 20,
"heart_test": 21,
"imaging": 20,
"lab": 19
},
"hospitals_covered": 27,
"hospitals_with_posted_prices": 23,
"nearest_hospital_with_prices_miles": 1.9,
"scope": "hospitals within 25 miles",
"services_with_at_least_one_price": 28
},
"national_median_usd": 1857.03,
"next_cursor": "bzoy",
"price_files_newest": "2026-10-24",
"query": {
"code": "70551",
"format": "concise",
"limit": 2,
"location": "ZIP 66210",
"plain_name": "Brain MRI, no contrast",
"radius_miles": 25,
"sort": "price"
},
"resolved_code": {
"category": "imaging",
"code": "70551",
"plain_name": "Brain MRI, no contrast"
},
"results": [
{
"cash_price_usd": 224,
"ccn": "170146",
"city": "Kansas City",
"distance_miles": 13.5,
"fap_url": "https://providencekc.com/financial-assistance/",
"file_date": "2026-03-17",
"flag": "",
"name": "Providence Medical Center",
"state": "KS"
},
{
"cash_price_usd": 237,
"ccn": "260085",
"city": "Kansas City",
"distance_miles": 6.1,
"fap_url": "https://stjosephkc.com/financial-assistance/",
"file_date": "2026-03-17",
"flag": "",
"name": "St. Joseph Medical Center",
"state": "MO"
}
],
"returned": 2,
"source": "FindMyDirectDoctor Foundation hospital cash price library (hospital price files posted under the federal price transparency rule, 45 CFR 180)",
"state_median_usd": {
"median_usd": 1349.78,
"n_used": 86,
"state": "KS"
},
"total_matches": 19
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"city": {
"description": "City name. Used together with state.",
"maxLength": 80,
"type": "string"
},
"code": {
"description": "CPT or HCPCS billing code of one of the 28 supported services, for example 70551 (brain MRI, no contrast). Give code or service, not both. GET /v1/hospital-prices/codes lists them.",
"pattern": "^[A-Za-z0-9]{5}$",
"type": "string"
},
"cursor": {
"description": "Opaque value from next_cursor of the previous response, to fetch the next page with the same other parameters.",
"type": "string"
},
"format": {
"default": "concise",
"description": "concise = key fields. detailed = every field.",
"enum": [
"concise",
"detailed"
],
"type": "string"
},
"lat": {
"description": "Latitude in decimal degrees. Used together with lng.",
"maximum": 90,
"minimum": -90,
"type": "number"
},
"limit": {
"default": 10,
"description": "Results per page (default 10, maximum 25).",
"maximum": 25,
"minimum": 1,
"type": "integer"
},
"lng": {
"description": "Longitude in decimal degrees. Used together with lat.",
"maximum": 180,
"minimum": -180,
"type": "number"
},
"radius_miles": {
"default": 50,
"description": "Search radius in miles (default 50, maximum 150). A larger value is lowered to the maximum.",
"exclusiveMinimum": 0,
"maximum": 150,
"type": "number"
},
"service": {
"description": "The service in plain words, for example brain MRI without contrast. The free dictionary resolves it to a code, and the response shows the resolved code and close alternatives.",
"maxLength": 120,
"type": "string"
},
"sort": {
"default": "price",
"description": "price = lowest cash price first. distance = nearest first.",
"enum": [
"price",
"distance"
],
"type": "string"
},
"state": {
"description": "2-letter US state code. Used together with city.",
"pattern": "^[A-Za-z]{2}$",
"type": "string"
},
"zip": {
"description": "5-digit US ZIP code. A location is given as zip, or lat with lng, or city with state.",
"pattern": "^\\d{5}$",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"alternatives": {
"description": "Other codes that also fit the words, best first.",
"items": {
"properties": {
"code": {
"type": "string"
},
"plain_name": {
"type": "string"
},
"score": {
"type": "number"
}
},
"type": "object"
},
"type": "array"
},
"area_prices": {
"description": "Cash-price statistics for the hospitals in the area.",
"properties": {
"high_usd": {
"type": [
"number",
"null"
]
},
"low_usd": {
"type": [
"number",
"null"
]
},
"median_usd": {
"description": "null when fewer than 5 prices.",
"type": [
"number",
"null"
]
},
"n_posted": {
"type": "integer"
},
"n_used": {
"description": "Distinct hospital prices used (prices flagged unusual are left out).",
"type": "integer"
},
"note": {
"type": "string"
},
"p25_usd": {
"description": "null when fewer than 10 prices.",
"type": [
"number",
"null"
]
},
"p75_usd": {
"description": "null when fewer than 10 prices.",
"type": [
"number",
"null"
]
},
"scope": {
"type": "string"
},
"unusual_left_out": {
"type": "integer"
}
},
"type": "object"
},
"data_as_of": {
"type": "string"
},
"disclaimer": {
"description": "Posted hospital self-pay prices for the facility portion only. Final bills can differ. Confirm with the hospital.",
"type": "string"
},
"flag_key": {
"description": "Plain meaning of each flag that appears in results.",
"type": "object"
},
"hospital_coverage": {
"description": "How many hospitals are in the price library and how many posted prices, for the scope of this response (counts only, no names).",
"type": "object"
},
"national_median_usd": {
"type": [
"number",
"null"
]
},
"next_cursor": {
"description": "Pass as cursor for the next page. null on the last page.",
"type": [
"string",
"null"
]
},
"price_files_newest": {
"description": "Newest price file date in the data for this code.",
"type": [
"string",
"null"
]
},
"query": {
"description": "The search as understood, with defaults applied.",
"type": "object"
},
"resolved_code": {
"description": "The billing code the response is about.",
"properties": {
"category": {
"type": "string"
},
"code": {
"type": "string"
},
"plain_name": {
"type": "string"
}
},
"required": [
"code",
"plain_name"
],
"type": "object"
},
"results": {
"items": {
"properties": {
"address": {
"type": "string"
},
"cash_price_usd": {
"description": "Posted self-pay (cash) price, facility portion only.",
"type": "number"
},
"ccn": {
"description": "CMS certification number.",
"type": "string"
},
"city": {
"type": "string"
},
"code": {
"type": "string"
},
"distance_miles": {
"type": [
"number",
"null"
]
},
"fap_checked": {
"type": [
"string",
"null"
]
},
"fap_url": {
"description": "Verified financial assistance (charity care) page, or null.",
"type": [
"string",
"null"
]
},
"file_date": {
"description": "Date of the hospital's price file.",
"type": [
"string",
"null"
]
},
"flag": {
"description": "Data flag. Empty when none. See flag_key.",
"type": "string"
},
"hospital_type": {
"type": [
"string",
"null"
]
},
"lat": {
"type": [
"number",
"null"
]
},
"lng": {
"type": [
"number",
"null"
]
},
"name": {
"type": "string"
},
"owner_type": {
"type": [
"string",
"null"
]
},
"price_file_url": {
"type": [
"string",
"null"
]
},
"state": {
"type": "string"
},
"zip": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"returned": {
"type": "integer"
},
"service_match": {
"description": "Present when service (plain words) was used: how the words were matched to a code.",
"properties": {
"confidence": {
"enum": [
"exact",
"close",
"best_guess"
],
"type": "string"
},
"matched_phrase": {
"type": [
"string",
"null"
]
},
"note": {
"type": "string"
},
"query": {
"type": "string"
}
},
"type": "object"
},
"source": {
"type": "string"
},
"state_median_usd": {
"description": "Median posted cash price in the state of the nearest priced hospital.",
"properties": {
"median_usd": {
"type": [
"number",
"null"
]
},
"n_used": {
"type": "integer"
},
"state": {
"type": "string"
}
},
"type": "object"
},
"total_matches": {
"description": "Hospitals inside the radius with a posted price for the code.",
"type": "integer"
}
},
"required": [
"query",
"total_matches",
"returned",
"results",
"data_as_of",
"disclaimer"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793129241/bazaar-icons/e5667360930b8563.png",
"lastUpdated": "2026-10-28T00:19:34.305Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-28T00:19:33.796Z"
},
"resource": "https://api.findmydirectdoctor.com/v1/hospital-prices/search",
"serviceName": "FindMyDirectDoctor Directory API",
"tags": [
"healthcare",
"doctors",
"direct-primary-care",
"dpc",
"concierge-medicine"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "US hospital self-pay (cash) prices posted under the federal price transparency rule. Search 28 common services (imaging, blood tests, emergency room visit levels, EKG, colonoscopy) by CPT or HCPCS billing code or plain words, near a ZIP code, city and state, or latitude/longitude. Returns each hospital's posted cash price, distance, price file date, data flag and financial assistance (charity care) link, plus the area median. Facility portion only; final bills can differ."
}What the leaf hashes
{"body":"3d623c3fce080b56229d00448178d1fc69e0c3ca9b29a28a15f93486f6cfb187","id":751147,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178704950965,"prev":null,"subject":"x402_bazaar:https://api.findmydirectdoctor.com/v1/hospital-prices/search","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).
- 0xd1a1952f2bff56fa9815372dc3bccb81b2cdc1d804678a1f4b6387e51b689571
- 0xadaf9961f0868ef2ccb47ab3fc7614874473ddc3220de5c42b278eb71ae823cd
- 0x1cac0cb05552db19a7265079567f89207914cd12479173d6029a52ac17704c8d
- 0xe4d30ad32afbe6692147f1270077ea6f4753504c1bea666557f3161d2881c142
- 0x92ab56a421c0846f68728a64c2cd9fefdda75d99575a7d1ab820e3c5bf2e4f08
- 0x60202ea7d33aec8d7ae5e84139421b041b9dd14064ba81cdfc5c9acb71fff5ec
- 0xf1693138f3f8fac5fb8514e1ddd5feeba4f1ac6039d8ae0fde0f8cff1968ac28
- 0xf0adf5fa756332864292bdcc8b4007d7cf4e5994ee9a7a0870caa8a027287a4e
- 0xe8d15fa8587a145939bd6b9a39d5d238b80eb3c6e04a70a6df9500b934403e7b
- 0x1e6ccad09842c5a4e17af9df6e5b77a34e8cf46314516a275ef38e5862772714
- 0x11c6096b85a5765f714872cac5d7834a6b42b44e702ce43c05cfe2ebfc693888
- 0x7e51a53bdcba8ba1158674962d9212cf13f3ea1cd92c4eaacac591e78681de71
- 0x238781565933a6272b970b298fead630d1a9f307a7409c815f764c79bd0179de
- 0xf6b8c3d6b5a76cd63c41fa19fc59bcc627a6c650fd84130c55cbc9251f9ffdd9
- 0x6d86d2282dd724b1b80d031e4e3cf9ed095b746e38c9e58d933efb597daff87f
- 0x32beeeb960280bc48748681cb10297ede9403461fe9c8143fdf946548e552926
- 0xe08e8bd91858a8a10c46ecde9c29a6288b960987303173c5e882afb46ce91fa0
- 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af
- Day root
- 0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
- Chained
- 0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
- Published
- On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae