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The ChiAha tool family

The engines behind our consulting work are also products. ReliaSim® is the main one: production lines, discrete rate flow, supply chain networks and ReliaStats® downtime data, all at reliasim.com. The others each handle one kind of problem. Most have a free sandbox you can try in the browser.

ReliaSim

It’s the stops that drive your output

ReliaSim models how a line, a plant or a supply chain really runs, stops and all, so you can ask what would happen if you changed a machine, a buffer or a site before you spend on it. The four parts below all live at reliasim.com, and each one has its own tier in the free ReliaSim Sandbox.

Other tools

Staffing, siting and the plant floor

Each of these handles one kind of problem. Most have their own site with demos, pricing and docs.

Use ChiAha from your AI chat

Run the tools inside Claude, ChatGPT or Cursor

Six public Model Context Protocol servers, listed in the official MCP registry, put these tools inside your AI chat. Ask a staffing, OEE or queueing question and the assistant calls the real simulation engine, then answers with its numbers. The public servers need no login or API key.

com.reliasim/public
ReliaSim
Production line simulation with the paired bottling-line model and the buffer tradeoff.
reliasim.com/mcp
com.reliastats/public
ReliaStats®
Reliability theory and closed-form math: Weibull shapes, MTTF and MTBF, availability, RBD system reliability and distribution choice.
reliasim.com/reliastats/mcp/v1
com.scmodeling/public
Supply chain
Supply chain network optimization and simulation: where the sites go, and how the network runs day by day.
scmodeling.com/mcp
com.queuesim/public
QueueSim
M/M/c queueing simulation, with the steady-state formula as a check and inverse staffing for any service line.
queuesim.com/mcp/v1
com.qsimhealth/public
QSimHealth
Emergency department staffing simulation with a physician-only demo and a healthcare-fluent agent.
qsimhealth.com/mcp/v1
com.discreterate/public
Discrete rate
A teaching agent for discrete rate simulation that runs the Fast-Slow Drain, Hamburger and Valdez demos and quotes the engine's output.
discreterate.com/mcp/v1

Add one from Claude.ai Connectors, Claude Desktop or Cursor by pasting its URL. What is MCP?

Rather have us run the model?

If you'd rather hand us the question than learn a tool, we can build and run the ReliaSim model for you, from your own stop data to a written recommendation.