US healthcare provider lookup (NPPES NPI Registry). Every US doctor, nurse, dentist, hospital, lab, pharmacy has an NPI — this returns the canonical record. Lookup by 10-digit NPI for a precise match, or by firstName + lastName + state for fuzzy search. Each record includes name + credentials, status, enumeration date, primary + secondary specialty taxonomies (with state license numbers), practice + mailing addresses, phone, and any cross-issuer identifiers (Medicaid, Medicare, etc.). Public-domain CMS data, free. For all three NPI datasets merged (identity + industry payments + Medicare billing) in one call, see /api/health/provider-profile.
/api/license/medicalPAYMENT-SIGNATURE.The medical API is a pay-per-call license endpoint built for AI agents and autonomous software. US healthcare provider lookup (NPPES NPI Registry).
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in medical data source for an agent tool-use loop, an MCP host, or a backend that needs license data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
npi | string | match ^\d{10}$ |
firstName | string | min 1 chars · max 80 chars |
lastName | string | min 1 chars · max 120 chars |
name | string | min 1 chars · max 120 chars |
state | string | min 2 chars · max 2 chars · match ^[A-Za-z]{2}$ |
enumerationType | string | one of: 1 | 2 |
limit | integer | min 1 · max 200 |
skip | integer | min 0 · max 10000 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/license/medical?npi=12345&firstName=example&lastName=example&name=example&state=xx&enumerationType=1&limit=10&skip=0' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/license/medical?npi=12345&firstName=example&lastName=example&name=example&state=xx&enumerationType=1&limit=10&skip=0' \ -H 'PAYMENT-SIGNATURE: <base64-json-payload>' # Or use the canonical runner (handles probe → sign → retry): # EVM_PRIVATE_KEY=0x... node --env-file=.env.local \ # --experimental-strip-types scripts/x402-pay.ts \ # 'https://2s.io/api/license/medical?npi=12345&firstName=example&lastName=example&name=example&state=xx&enumerationType=1&limit=10&skip=0'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.license.medical({
"npi": "12345",
"firstName": "example",
"lastName": "example",
"name": "example",
"state": "xx",
"enumerationType": "1",
"limit": 10,
"skip": 0
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.license.medical(npi="12345", firstName="example", lastName="example", name="example", state="xx", enumerationType="1", limit=10, skip=0)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
// EVM_PRIVATE_KEY funds x402 payments per call.
// claude_desktop_config.json
{
"mcpServers": {
"2sio": {
"command": "npx",
"args": ["-y", "@2sio/mcp"],
"env": { "EVM_PRIVATE_KEY": "0x..." }
}
}
}
// 2. Once the server is running, agents call this tool via standard MCP:
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/call",
"params": {
"name": "license.medical",
"arguments": {
"npi": "12345",
"firstName": "example",
"lastName": "example",
"name": "example",
"state": "xx",
"enumerationType": "1",
"limit": 10,
"skip": 0
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
meta | object |
{
"ok": true,
"items": [
{
"npi": "example",
"enumerationType": "example",
"name": {
"first": "example",
"last": "example",
"middle": "example",
"credential": "example",
"organizationName": "example"
},
"status": "example",
"enumerationDate": "example",
"lastUpdated": "example",
"taxonomies": [
{
"code": "example",
"desc": "example",
"primary": false,
"licenseNumber": "example",
"licenseState": "example"
}
],
"addresses": [
{
"purpose": "example",
"address1": "example",
"address2": "example",
"city": "example",
"state": "example",
"postalCode": "example",
"country": "example",
"telephone": "example",
"fax": "example"
}
],
"identifiers": [
{
"code": "example",
"desc": "example",
"issuer": "example",
"identifier": "example",
"state": "example"
}
]
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"query": {
"npi": "example",
"name": "example",
"firstName": "example",
"lastName": "example",
"state": "example",
"enumerationType": "example",
"limit": 1,
"skip": 1
},
"returned": 1
}
}