OpenCancer MCP Server: Install & Setup

Install OpenCancer in Claude Code

Claude Code

claude mcp add --transport http opencancer https://opencancer.ai/api/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "opencancer": {
      "url": "https://opencancer.ai/api/mcp"
    }
  }
}

Frequently asked questions

What does the OpenCancer MCP server do?

Cancer patient expert: NCCN-grounded answers with sources, recruiting trials, and expert review.

Is the OpenCancer MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does OpenCancer run locally or remotely?

Remote. Hosted by the provider. You connect with a URL, nothing to install.

How do I add OpenCancer to Claude Code?

Run: claude mcp add --transport http opencancer https://opencancer.ai/api/mcp

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