Model Lookup
Look up pricing, context windows, and capabilities for any LLM. Fuzzy matching means you don’t need exact model IDs.
Token Cost
Real LLM pricing data for your AI tools — not hallucinated guesses. An MCP server that gives Claude, Cursor, and other AI assistants accurate, up-to-date model pricing from the LiteLLM community registry.
Install
Section titled “Install”Add to your Claude Code config in one command:
claude mcp add tariff -- npx -y @atriumn/tariffOr add the JSON config manually — see the Getting Started guide.
What can it do?
Section titled “What can it do?”Cost Estimation
Estimate the cost for a given number of input and output tokens on any model. Know what you’ll spend before you spend it.
Model Comparison
Filter and compare models by provider, context window, or mode. Find the most cost-effective model for your workload.
Live Data
Pricing data sourced from the LiteLLM community registry, cached for 24 hours with on-demand refresh.