MCP App Store
by KeenEthics

Overview

Counter connects your builders’-merchant price book to ChatGPT so you can price up a job in seconds. Ask for any material and Counter returns your own agreed prices so your estimates are fast and accurate.

Tools

fetch

ChatGPT
Fetch full price detail for one price-book item by its id (from a search result).

price_benchmark

ChatGPT
Compare a price-book item against the Counter-network benchmark — the anonymised cross-customer median for the same product. Call this WHENEVER the user asks "is this a good price?", "what should I be paying?", "how does this compare?", or wants a price sanity-check — run it, do not merely offer. Chain it right after search_price_book, passing that item's std_item_id, item_name, and ALL its price_book_item_ids (collect the ids from every matched row that shares the same standard_item_id). Returns the network median, typical range, and per-merchant breakdown; if there is not enough network data it says so.

price_forecast

ChatGPT
Project what a material will likely cost a few months out, as a banded range + cited commodity-index basis (never a bare point price). Answers "what will this cost in October / by the time I buy?". Pass the std_item_id + item_name from search_price_book output, and current_unit_price when you have it (for a £ range).

search_price_book

ChatGPT
Look up the customer's own prices. To find an item, ALWAYS pass search with the product name (e.g. "masking tape", "cement") — it matches name, SKU, and aliases. supplier_name only NARROWS results to one supplier; it does NOT find items on its own, so never search with supplier_name alone. Supports search_alternatives (metric equivalents, formal names), category browsing, and list_categories. Shows prices across suppliers with savings; when the result spans suppliers the output opens with a "Cheapest per supplier" summary — use those figures for generic "what is the price for X" questions (diverge only when the user names a specific variant). Each item line includes its standard_item_id and price_book_item_id. IMPORTANT: when the user asks whether a price is good / what they SHOULD pay / how it compares to others, immediately follow up with the price_benchmark tool, passing the std_item_id and the price_book_item_ids from the matched item — do not just offer, actually run it.

supplier_intel

ChatGPT
Get intelligence about suppliers including invoice history, pricing patterns, and observations.

Example Prompts

Click any prompt to copy it.

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