# Script Master Labs — CMS Providers Lookup (x402)

> Script Master Labs — CMS Providers Lookup (x402) is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Retrieves U.S. federal CMS (Centers for Medicare & Medicaid Services) healthcare provider records, filterable by name, type, state, and result limit, paid per-call in USDC via x402.

## Facts

- Endpoint: GET https://mcp-x402.onrender.com/x402/cms-providers
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/script-master-labs-cms-providers-lookup-x402-e4f2e013
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ps_PzyApuCoL2fU2dYq0X

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability script-master-labs-cms-providers-lookup-x402-e4f2e013
```

Example prompt: Can you look up CMS-registered hospitals named 'St. Mary' in Texas and show me up to 10 results?

## When to prefer this

Use this endpoint when you need structured, pay-per-call access to U.S. federal CMS provider registry data and want to filter by provider name, state, or type. Prefer this over scraping CMS websites directly when you need clean API responses with microtransaction pricing via USDC on Base. Best suited for compliance checks, healthcare market research, and provider verification workflows that don't require bulk downloads.

## Known failure modes

- No matching providers found for given name or state — empty result set returned
- Invalid state code (not a valid 2-letter U.S. state abbreviation) may return error or empty results
- Payment failure via x402/USDC may block the request before data is returned
- Rate limiting or service unavailability on the rendering host (onrender.com) may cause timeouts
- Overly broad queries without filters may return large or truncated result sets

## How this service works

Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.

## Output

Returns a list of CMS-registered healthcare provider records matching the query, including provider names, types, locations, and federal identifiers. The number of results is bounded by the limit parameter.

## Request schema (JSON Schema)

```json
{
 "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": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "name": {
       "type": "string",
       "description": "Hospital or provider name."
      },
      "type": {
       "enum": [
        "hospital",
        "physician"
       ],
       "type": "string",
       "default": "hospital"
      },
      "limit": {
       "type": "integer",
       "default": 10,
       "maximum": 20,
       "minimum": 1
      },
      "state": {
       "type": "string",
       "description": "2-letter state code."
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/script-master-labs-cms-providers-lookup-x402-e4f2e013/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)