OpenApps

HORIZON SHIELD — Claude app

Check Japanese construction and renovation estimates against the open JCCDB dataset (526,128 records) and get Bitcoin-anchored, recomputable fair-price receipts; find contractors t

HORIZON SHIELD

Check Japanese construction and renovation estimates against the open JCCDB dataset (526,128 records) and get Bitcoin-anchored, recomputable fair-price receipts; find contractors that passed the independent fair-price check (YAKUMO); public construction-cost data for Japan and the U.S. (JCCDB, USCCDB) from a separate read-only server. No API key. Two tools append a public ledger record; the rest read.

Store
claude
Publisher
Not reported
First observed
2026-10-09T19:00:10+00:00

Open the interactive profile to explore rank history, metrics, tools and listing versions.

Data as of 2026-10-14T00:06:16+00:00.

OpenApps records store listings and observed changes. Store ranks are not download counts; launch dates may be derived or use the first observation. Coverage gaps are shown in the interactive catalog.

REST API specification · Guide for AI clients · Manage API keys and MCP connections