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Fabrica (Sepolia testnet)
land.fabrica/mcp-testnet in the official MCP registry.
Endpoint https://mcp-testnet.fabrica.land/mcp. Source: github.com/fabrica-land/fabrica-mcp.
The registry describes it as: Fabrica test properties on Sepolia: try every Fabrica tool with no real-world effect.
We read its 30 tools on 2026-10-27. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
search_land get_land_property get_fabrica_lending_market get_fabrica_loan_book get_land_portfolio get_fabrica_stats get_land_boundary get_land_trust_documents get_land_tax_status explain_property_checks estimate_land_borrowing get_loan_against_land get_land_valuation get_land_activity get_land_order_book get_land_map_image get_land_portfolio_map_image ask_fabrica find_us_parcel check_county_coverage contact_fabrica_support make_land_offer list_land_for_sale accept_land_offer buy_land cancel_land_order borrow_against_land repay_loan_against_land get_sign_request get_transaction_status
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/land-fabrica-mcp-testnet)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.