
An MCP transparency log that records, signs, and audits tool definitions advertised by remote MCP endpoints, helping clients verify whether received definitions match observed registry data.
Prices and medians update for the tier you select.
Ranked by how closely each one matches HISTOR's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Market = the products most similar to this one by capability; prices are median / quartiles over its priced members, separated by provider type and buyer tier.