clinicaltrialsgov-mcp-server

Remote (streamable-http)

https://clinicaltrials.caseyjhand.com/mcp Reachable (checked 2026-11-09)

Claude Code:

claude mcp add --transport http clinicaltrialsgov-mcp-server https://clinicaltrials.caseyjhand.com/mcp

Or add to your MCP client config:

{
  "mcpServers": {
    "clinicaltrialsgov-mcp-server": {
      "url": "https://clinicaltrials.caseyjhand.com/mcp"
    }
  }
}

Package (npm 2.11.2)

npx -y [email protected]

Or add to your MCP client config:

{
  "mcpServers": {
    "clinicaltrialsgov-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ]
    }
  }
}

• CT_API_BASE_URL — ClinicalTrials.gov API base URL.
• CT_REQUEST_TIMEOUT_MS — Timeout in milliseconds for each attempt at a ClinicalTrials.gov request; a positive integer. An attempt ends sooner when its tool call or resource read runs out of its 50-second budget, which covers every request, retry, and wait the call makes.
• CT_MAX_PAGE_SIZE — Most studies one clinicaltrials_search_studies page returns; an integer of at least 1, values above 1000 clamp to 1000.
• MCP_LOG_LEVEL — Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

Package (npm 2.11.2)

Package: npm clinicaltrialsgov-mcp-server

• MCP_TRANSPORT_TYPE — Selects the HTTP transport.
• CT_API_BASE_URL — ClinicalTrials.gov API base URL.
• CT_REQUEST_TIMEOUT_MS — Timeout in milliseconds for each attempt at a ClinicalTrials.gov request; a positive integer. An attempt ends sooner when its tool call or resource read runs out of its 50-second budget, which covers every request, retry, and wait the call makes.
• CT_MAX_PAGE_SIZE — Most studies one clinicaltrials_search_studies page returns; an integer of at least 1, values above 1000 clamp to 1000.
• MCP_HTTP_HOST — The hostname for the HTTP server.
• MCP_HTTP_PORT — The port to run the HTTP server on.
• MCP_HTTP_ENDPOINT_PATH — The endpoint path for the MCP server.
• MCP_AUTH_MODE — Authentication mode to use: 'none', 'jwt', or 'oauth'.
• MCP_LOG_LEVEL — Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').