ProofPrice answers one question for AI agents: what did people actually pay for X, here, recently?
Every answer comes from official records and is a range or an official figure, never a bare number: the median, the typical range (10th to 90th percentile), the number of records, the period, a confidence label, and the official source with its licence and a ready-to-quote attribution line. Read-only tools cover:
MCP connector
Server URL
https://proofprice.com/api/mcp
Login
None
Protocol
MCP 2026-07-28
Instructions
Tools that return real prices actually paid, from official records, as a range with sample size, period, confidence and source. Cite the source and attribution line when you use a figure.
