Introduction
What you can build with CostCrunch, and the three ways to reach your data.
Updated October 31, 2026
CostCrunch reads your supplier invoices, quotes, credits, and statements and turns them into purchasing data: what you bought, from which supplier, for which project, at what price, and whether that price was good.
These docs are about using that data outside the CostCrunch app:
| What it's for | Start with | |
|---|---|---|
| AI assistants (MCP) | Ask Claude, Cursor, or another assistant questions about your invoices, suppliers, and prices | Set up an assistant |
| Command line | Quick lookups and CSV exports with the cost command | Install the CLI |
| Python | Scripts, notebooks, and reports | Install the package |
All three come from one package, costcrunch, and offer the same operations with the same parameters. The Reference lists every one.
What you can look up
- Documents: invoices, quotes, credits, and statements, with line items and price checks.
- Suppliers: spend per supplier, and what you buy from each.
- Projects: spend per job, by supplier, month, and cost type.
- Materials: everything you've bought, your price history, and what each material should cost.
- Spend: by month and by category.
- Search: across all of the above.
What it can't do (yet)
Everything here is read-only. Approving, editing, uploading, and exporting to accounting stay in the CostCrunch app.
Using CostCrunch day to day? The Help Center covers the app itself.
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