Nullary MCP Server: Install & Setup

Install Nullary in Claude Code

Claude Code

claude mcp add --transport http nullary https://mcp.nullary.ai/mcp

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

{
  "mcpServers": {
    "nullary": {
      "url": "https://mcp.nullary.ai/mcp"
    }
  }
}

Frequently asked questions

What does the Nullary MCP server do?

Negative results intelligence for drug discovery — query measured failures via MCP.

Is the Nullary 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 Nullary run locally or remotely?

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

How do I add Nullary to Claude Code?

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

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