Build with CostCrunch
Your invoices, suppliers, projects, and prices in AI assistants, the command line, and your own code.
AI assistants
Ask Claude or Cursor about your purchasing data.
uvx --from costcrunch cost mcpCommand line
Look things up and export CSV from your terminal.
uv tool install costcrunchPython
Pull your data into scripts and reports.
pip install costcrunchPopular articles
Get started
What you can build with CostCrunch, your first API key, and how access works.
AI assistants (MCP)
Connect Claude, Cursor, or any MCP client to your invoices, suppliers, projects, and prices.
Command line
The cost command: look things up, export CSV, and script your purchasing data.
Python
The costcrunch package: your CostCrunch data in scripts, notebooks, and reports.
Reference
Every operation, with its CLI command, MCP tool, Python method, and parameters.