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OpenCancer

Official registry Health

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

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http opencancer 'https://opencancer.ai/api/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "opencancer": {
            "type": "http",
            "url": "https://opencancer.ai/api/mcp"
        }
    }
}

Frequently asked questions

What is OpenCancer?

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

How do I install OpenCancer?

It runs as a remote server. In Claude Code: claude mcp add --transport http opencancer 'https://opencancer.ai/api/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does OpenCancer need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains OpenCancer?

It is published by ai.opencancer. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.