Opennih MCP Server: Install & Setup

Install Opennih in Claude Code

Claude Code

claude mcp add --transport http opennih https://mcp.opennih.org/mcp

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

{
  "mcpServers": {
    "opennih": {
      "url": "https://mcp.opennih.org/mcp"
    }
  }
}

Frequently asked questions

What does the Opennih MCP server do?

Entity-resolved NIH grant corpus (FY1985-2026) via 14 read-only, provenance-carrying MCP tools.

Is the Opennih 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 Opennih run locally or remotely?

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

How do I add Opennih to Claude Code?

Run: claude mcp add --transport http opennih https://mcp.opennih.org/mcp

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