Looking at the tool calls, this server provides a cost estimation and comparison layer for LLM providers. You can estimate costs for specific operations, list available models across providers, compare pricing between different models, and find the cheapest option for your use case. The main operations are estimate_cost, list_models, get_model, cheapest_for, and compare_models. Reach for this when you're optimizing LLM spend across multiple providers or need to programmatically select models based on cost constraints. It's essentially a pricing API wrapper that helps you make informed decisions about which model to use before you actually make the call.