Documentation

Connecting to PolarisRay

PolarisRay serves each dataset as an MCP server over HTTP. Point any MCP-capable client at the endpoint — public sources need no API key.

Endpoints

Every live source lives under a path on mcp.polarisray.com:

https://mcp.polarisray.com/<source>

Browse the catalog for tools, examples, and disclaimers. /federated searches MAUDE, ClinicalTrials.gov, DailyMed, openFDA SPL, and FDA recalls in one call; FAERS is a separate live server (not included in federated). Conference search is planned under /conferences.

Sourced results

Search and get tools return a url when a public detail page exists — DailyMed and openFDA drug labels, ClinicalTrials.gov studies, FDA MAUDE device reports, and FDA iRES recall records — so you can open the primary source. FAERS is different: FDA does not publish a per-case web page, so hits link to the quarterly extract, not an individual case.

Claude Desktop / Claude Code

Add the server to your MCP config (claude_desktop_config.json, or via claude mcp add):

{
  "mcpServers": {
    "polarisray-maude": {
      "url": "https://mcp.polarisray.com/maude"
    },
    "polarisray-faers": {
      "url": "https://mcp.polarisray.com/faers"
    },
    "polarisray-recalls": {
      "url": "https://mcp.polarisray.com/recalls"
    },
    "polarisray-clinical-trials": {
      "url": "https://mcp.polarisray.com/clinical_trials"
    },
    "polarisray-dailymed": {
      "url": "https://mcp.polarisray.com/dailymed"
    },
    "polarisray-spl": {
      "url": "https://mcp.polarisray.com/spl"
    },
    "polarisray-federated": {
      "url": "https://mcp.polarisray.com/federated"
    }
  }
}

Other clients

Any client that supports remote MCP over HTTP works the same way — supply the endpoint URL. This includes Cursor, VS Code (MCP extension), and custom agents built on the MCP SDKs.

Authentication

Public datasets are open and require no credentials. Sources that wrap rate-limited or licensed data will document an api-key flow on their individual pages.

Why PolarisRay

Fewer tokens. Search by meaning.

Answer-ready results with far less context than raw APIs — plus concept search the official FDA API can't do.

See why PolarisRay →