Whatif

Overview

Whatif is an MCP server that brings conversational what-if simulation into your AI workflows. Build, diagnose, and compare Petri-net models through natural dialogue with your AI assistant. The server exposes simulation tools that Claude, Cursor, VS Code, and other MCP clients can invoke directly.

Whatif runs as a remote service hosted at https://sim.pflow.xyz/mcp, so there's nothing to install locally and no authentication required. The current release is v1.0.0, and the project includes a CC0 catalog of models ready to explore.

Find Whatif in the AI & Agents category on mcp.site. It integrates with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any standards-compliant MCP client. If you maintain this project for sim.pflow, please claim this listing to verify ownership and keep the information up to date.

Installation

Settings → Connectors → Add custom connector
Name: Whatif
URL:  https://sim.pflow.xyz/mcp