NetSuite MCP Server is an MCP bridge that enables natural language access to NetSuite data via an OAuth 2.0 with PKCE authentication flow. It acts as an MCP server (Node.js) that connects MCP clients (Claude Code, Cursor IDE, Gemini CLI) to NetSuite's AI Connector SuiteApp. It exposes NetSuite MCP tools such as SuiteQL queries, reports, saved searches, and REST API operations, allowing users to interact with NetSuite data within their development environment using plain language queries. The server implements an OAuth manager with a local callback HTTP server (default port 8080), token storage, and automatic token refresh. Credentials can be provided via environment variables in the MCP client config, and there is support for both latest-npx deployment and local development (via npm link or direct path). It preserves session state across restarts and supports authentication resets. Prerequisites include NetSuite account access, the AI Connector SuiteApp, and an OAuth integration record. After authentication, NetSuite tools appear in MCP clients and can be used to run SuiteQL, list/execute saved searches, and generate reports through natural language prompts.