New Relic MCP Server

Instructions

Implementation Reference

• newrelic_mcp/server.py:534-547 (handler)

  MCP tool handler for 'nerdgraph_query'. This is the main entrypoint decorated with @mcp.tool() that handles the tool execution by calling the client's method and formatting the JSON response.

  @mcp.tool()
  async def nerdgraph_query(
      query: str, variables: Optional[Dict[str, Any]] = None
  ) -> str:
      """Execute a custom NerdGraph GraphQL query"""
      if not client:
          return json.dumps({"error": "New Relic client not initialized"})
  
      try:
          result = await client.nerdgraph_query(query, variables)
          return json.dumps(result, indent=2)
      except Exception as e:
          return json.dumps({"error": str(e)}, indent=2)

• newrelic_mcp/server.py:158-166 (helper)

  Helper method in NewRelicClient class that performs the actual NerdGraph GraphQL query by constructing the request payload and calling the generic HTTP request method.

  async def nerdgraph_query(
      self, query: str, variables: Optional[Dict[str, Any]] = None
  ) -> Dict[str, Any]:
      """Execute a NerdGraph GraphQL query"""
      data = {"query": query}
      if variables:
          data["variables"] = variables
      return await self._make_request("POST", self.nerdgraph_url, json=data)