CMS Care Compare lookup for every CMS-certified US hospital (~5k)
CMS Care Compare lookup for every CMS-certified US hospital (~5k). Lookup by 6-digit CMS Facility ID for direct match, or fuzzy by name + state + city + hospital type, with optional minimum overall rating (1-5) filter. Each record includes facility ID, name, full address, phone, hospital type (Acute Care / Critical Access / Psychiatric / etc.), ownership category, emergency services flag, birthing-friendly designation, CMS overall star rating, and per-measure-group counts (mortality, safety, readmission, patient experience, effectiveness, timeliness, medical imaging). Public-domain federal data.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://2s.io/api/health/hospital-lookup
| Category | Everything else |
|---|---|
| Provider host | 2s.io |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 5 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.003 | 250 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"limit": 3,
"minRating": 5,
"state": "CA"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET"
},
"queryParams": {
"properties": {
"city": {
"description": "City name (case-insensitive contains).",
"type": "string"
},
"facilityId": {
"description": "6-digit CMS facility ID.",
"type": "string"
},
"hospitalType": {
"description": "E.g., \"Acute Care\", \"Critical Access\", \"Psychiatric\".",
"type": "string"
},
"limit": {
"default": 20,
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"minRating": {
"maximum": 5,
"minimum": 1,
"type": "integer"
},
"name": {
"description": "Fuzzy name match.",
"type": "string"
},
"offset": {
"default": 0,
"minimum": 0,
"type": "integer"
},
"state": {
"description": "2-letter US state.",
"type": "string"
}
}
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}