CEORater opens its dataset: free API, CLI and MCP server, no key required

Every figure CEORater displays on the web is now available through a public API, a command line client and an MCP server for AI agents. No account, no key, no signup.

CEORater's data is open. The ten figures we publish for each S&P 500 CEO — the same ten the website displays — can now be read by anyone, through whichever channel suits them, at no cost and without registering.

The ten fields

Four are measures of the CEO's record:

Total Stock Return ("TSR")—the total return on the company's stock from the day the CEO took the job to the most recent close, with dividends reinvested.

S&P 500 Return—the total return on the S&P 500 over that identical window, measured through SPY.

Tenure—years in the role.

Compensation—total reported compensation for the most recently disclosed period, in millions of U.S. dollars, as filed.

Six identify the company and the person:

Ticker, Company, CEO, Founder, Sector and Industry.

Four ways to read it

Web—ceorater.com. Free to use. Sort on any of the nine sortable columns; filter by sector, industry or founder-led.

API—a public HTTP endpoint returning JSON. Documentation at ceorater.com/api-docs.html.

$ curl -s https://api.ceorater.com/api/v1/ceo/NVDA

{
  "ticker": "NVDA",
  "count": 1,
  "items": [
    {
      "ticker": "NVDA",
      "company": "NVIDIA",
      "ceo": "Jensen Huang",
      "founder": true,
      "sector": "Information Technology",
      "industry": "Semiconductors",
      ...
    }
  ]
}

A request with no arguments returns every CEO under coverage. There is no page size to work around and no result cap; the only limit is 100 requests per fifteen minutes per IP address.

Terminal—the CEORater CLI. Install instructions for Windows, macOS and Linux are on ceorater.com.

$ pipx install ceorater
$ ceorater list --sector "Information Technology" --founder

AI agents—an MCP server. The Model Context Protocol is an open standard, so Claude, ChatGPT, Cursor, VS Code and other clients can all query CEORater directly.

$ pipx install ceorater-mcp

Both the CLI and the MCP server are MIT licensed. Source for the CLI and the MCP server is on GitHub.

Classification

Sectors and industries are GICS, as published by S&P for the S&P 500 — 11 sectors and 128 sub-industries. Each company is matched to its classification on SEC Central Index Key rather than on ticker.

Coverage

513 CEOs across 508 companies. Co-CEOs are carried as separate records with their own start dates and their own returns.

We are working on expanding the number of CEOs under CEORater's coverage.

Terms

The data is free to use, including commercially. Attribution to CEORater is appreciated. CEORater publishes reported figures and makes no investment recommendations.