2s
The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "PAYMENT-SIGNATURE required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "7200",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "7200",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://2s.io/api/health/hospital-quality",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402",
"upto-billing",
"ai-gateway",
"agent-infrastructure"
],
"iconUrl": "https://2s.io/icon-512.png",
"mimeType": "application/json",
"description": "CMS Care Compare hospital quality ratings — the data behind medicare.gov hospital ratings, for all ~5,300 Medicare-certified US hospitals. Look up by facilityId (CMS certification number), or filter by state, city, and name (partial match). Each row: facility id/name/address/phone, hospital type + ownership, emergency services, overall star rating (1-5), and per-domain measure summaries (mortality, safety of care, readmission, patient experience, timeliness, effectiveness) showing whether the hospital performs better/same/worse than the national average. Rows returned with CMS's documented column names. Public-domain federal data.",
"serviceName": "2s"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "mayo clinic",
"state": "MN"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"state": {
"type": "string"
},
"address": {
"type": "string"
},
"citytown": {
"type": "string"
},
"zip_code": {
"type": "string"
},
"facility_id": {
"type": "string"
},
"facility_name": {
"type": "string"
},
"hospital_type": {
"type": "string"
},
"emergency_services": {
"type": "string"
},
"hospital_ownership": {
"type": "string"
},
"hospital_overall_rating": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"items": [
{
"state": "AZ",
"address": "5777 EAST MAYO BOULEVARD",
"citytown": "PHOENIX",
"zip_code": "85054",
"facility_id": "030103",
"facility_name": "MAYO CLINIC HOSPITAL",
"hospital_type": "Acute Care Hospitals",
"emergency_services": "Yes",
"hospital_ownership": "Voluntary non-profit - Private",
"hospital_overall_rating": "5"
}
],
"total": 1,
"source": {
"url": "https://data.cms.gov/provider-data/",
"license": "Public domain (US government records)",
"provider": "CMS Care Compare"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"properties": {
"city": {
"type": "string"
},
"name": {
"type": "string",
"description": "Hospital name, partial match."
},
"limit": {
"type": "integer",
"default": 10,
"maximum": 100,
"minimum": 1
},
"state": {
"type": "string",
"description": "2-letter state code."
},
"offset": {
"type": "integer",
"default": 0,
"minimum": 0
},
"facilityId": {
"type": "string",
"description": "CMS certification number, e.g. \"030103\"."
}
}
}
}
},
"output": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"state": {
"type": "string"
},
"address": {
"type": "string"
},
"citytown": {
"type": "string"
},
"zip_code": {
"type": "string"
},
"facility_id": {
"type": "string"
},
"facility_name": {
"type": "string"
},
"hospital_type": {
"type": "string"
},
"emergency_services": {
"type": "string"
},
"hospital_ownership": {
"type": "string"
},
"hospital_overall_rating": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.00288 USDC on Base to 0x2b6D…C32C5. The signed payment is good for 1 minute.
- Paid to
- 0x2b6D…C32C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 2880 smallest units
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- TW6nta…cyWhn
- Token contract
- EPjFWd…TDt1v
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"amount": "2880",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USDC",
"version": "1",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
},
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"amount": "2880",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"name": "mayo clinic",
"state": "MN"
}
},
"output": {
"type": "json",
"schema": {
"type": "object",
"properties": {
"ok": {
"type": "boolean"
},
"items": {
"type": "array",
"items": {
"type": "object",
"properties": {
"state": {
"type": "string"
},
"address": {
"type": "string"
},
"citytown": {
"type": "string"
},
"zip_code": {
"type": "string"
},
"facility_id": {
"type": "string"
},
"facility_name": {
"type": "string"
},
"hospital_type": {
"type": "string"
},
"emergency_services": {
"type": "string"
},
"hospital_ownership": {
"type": "string"
},
"hospital_overall_rating": {
"type": "string"
}
}
}
},
"total": {
"type": "integer"
},
"source": {
"type": "object",
"properties": {
"url": {
"type": "string"
},
"license": {
"type": "string"
},
"provider": {
"type": "string"
}
}
}
}
},
"example": {
"ok": true,
"items": [
{
"state": "AZ",
"address": "5777 EAST MAYO BOULEVARD",
"citytown": "PHOENIX",
"zip_code": "85054",
"facility_id": "030103",
"facility_name": "MAYO CLINIC HOSPITAL",
"hospital_type": "Acute Care Hospitals",
"emergency_services": "Yes",
"hospital_ownership": "Voluntary non-profit - Private",
"hospital_overall_rating": "5"
}
],
"total": 1,
"source": {
"url": "https://data.cms.gov/provider-data/",
"license": "Public domain (US government records)",
"provider": "CMS Care Compare"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"queryParams"
],
"properties": {
"type": {
"const": "http"
},
"method": {
"const": "GET"
},
"queryParams": {
"properties": {
"city": {
"type": "string"
},
"name": {
"type": "string",
"description": "Hospital name, partial match."
},
"limit": {
"type": "integer",
"default": 10,
"maximum": 100,
"minimum": 1
},
"state": {
"type": "string",
"description": "2-letter state code."
},
"offset": {
"type": "integer",
"default": 0,
"minimum": 0
},
"facilityId": {
"type": "string",
"description": "CMS certification number, e.g. \"030103\"."
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-18 05:33Z
- Last indexed by Roundhouse
- 2026-07-17 19:20Z
- Last enriched (probe, favicon, geo)
- 2026-09-19 22:45Z
- x402 version
- 2
- Max timeout
- 60s
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service 2s 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=2s' 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://2s.io/api/health/hospital-quality, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402, or use an organization key from https://roundhouseai.io/dashboard/team. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.