`open_payments_compare_companies`

Pack: cms-open-payments · Endpoint: https://gateway.pipeworx.io/cms-open-payments/mcp

Compare 2–5 company-name queries across CMS Open Payments program years using authoritative match counts and clearly labeled bounded samples. This does not compare complete spend unless every matching row fits in the sample.

Parameters

Name	Type	Required
`companies`	array	yes
`items`	string	no
`from_year`	number	no
`to_year`	number	no
`payment_type`	string	no
`sample_per_year`	number	no

Example call

Arguments

{
  "companies": [
    "Pfizer",
    "Merck"
  ],
  "from_year": 2023,
  "to_year": 2025
}

curl

curl -X POST https://gateway.pipeworx.io/cms-open-payments/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"open_payments_compare_companies","arguments":{"companies":["Pfizer","Merck"],"from_year":2023,"to_year":2025}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('open_payments_compare_companies', {
  "companies": [
    "Pfizer",
    "Merck"
  ],
  "from_year": 2023,
  "to_year": 2025
});

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "cms-open-payments": {
      "url": "https://gateway.pipeworx.io/cms-open-payments/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

open_payments_compare_companies