Getting started

Connect a client

Setup for each supported client. OAuth clients need only the URL; static-header clients use an API key.

Claude

In Claude (web or desktop) open Settings → Connectors and choose Add custom connector.
Name it Nuclear News Network and paste the server URL https://mcp.nuclearnewsnetwork.com/mcp.
Click Connect, sign in to NNN, then Allow access. Claude registers itself through OAuth; there is no key to paste.
Enable the connector in a chat from the + menu and ask: “Who are the shareholders of Sizewell C?”

Claude Code

Add the server, then run /mcp inside Claude Code and pick nnn → Authenticate to finish OAuth in your browser.

terminal

claude mcp add --transport http nnn https://mcp.nuclearnewsnetwork.com/mcp

ChatGPT

In ChatGPT open Settings → Apps & Connectors → Advanced settings and turn on Developer mode (until the NNN listing is approved in the directory).
Choose Create, name it Nuclear News Network, paste https://mcp.nuclearnewsnetwork.com/mcp and pick OAuth authentication.
Sign in to NNN and Allow access. ChatGPT can then use NNN in chats and deep research through the search and fetch tools.

Grok

grok.com: open Connectors → New connector → Custom, paste https://mcp.nuclearnewsnetwork.com/mcp and complete sign-in. On Business and Enterprise plans an admin adds the connector first.

xAI API: pass NNN as a remote MCP tool with an API key in authorization.

xAI Responses API

curl https://api.x.ai/v1/responses \
  -H "Authorization: Bearer $XAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "'"$GROK_MODEL"'",
    "input": "Which reactor units is Westinghouse building, and who owns Westinghouse?",
    "tools": [{
      "type": "mcp",
      "server_url": "https://mcp.nuclearnewsnetwork.com/mcp",
      "server_label": "nnn",
      "authorization": "Bearer '"$NNN_API_KEY"'"
    }]
  }'

opencode

Add NNN under mcp in opencode.json. On first use opencode gets the 401, registers itself and opens your browser to sign in; or run opencode mcp auth nnn. To use an API key instead, set "oauth": false and add "headers": { "Authorization": "Bearer {env:NNN_API_KEY}" }.

opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "nnn": {
      "type": "remote",
      "url": "https://mcp.nuclearnewsnetwork.com/mcp",
      "enabled": true
    }
  }
}

Cursor

Add NNN to ~/.cursor/mcp.json (or .cursor/mcp.json in a project). Cursor also supports OAuth: omit headers and it will open the sign-in page.

~/.cursor/mcp.json

{
  "mcpServers": {
    "nnn": {
      "url": "https://mcp.nuclearnewsnetwork.com/mcp",
      "headers": {
        "Authorization": "Bearer nnn_live_…"
      }
    }
  }
}

VS Code

Add a workspace server in .vscode/mcp.json. VS Code discovers the OAuth server and prompts you to sign in on first use.

.vscode/mcp.json

{
  "servers": {
    "nnn": {
      "type": "http",
      "url": "https://mcp.nuclearnewsnetwork.com/mcp"
    }
  }
}

Other clients

Any client that speaks Streamable HTTP can connect to https://mcp.nuclearnewsnetwork.com/mcp with OAuth or an API key. For stdio-only clients, bridge with mcp-remote:

stdio bridge

{
  "mcpServers": {
    "nnn": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.nuclearnewsnetwork.com/mcp",
        "--header",
        "Authorization: Bearer ${NNN_API_KEY}"
      ]
    }
  }
}

Test with curl

With an API key you can call the endpoint directly. List the tools:

terminal

curl -s https://mcp.nuclearnewsnetwork.com/mcp \
  -H "Authorization: Bearer $NNN_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

Call one:

terminal

curl -s https://mcp.nuclearnewsnetwork.com/mcp \
  -H "Authorization: Bearer $NNN_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_entities","arguments":{"query":"Sizewell"}}}'