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app.onehaus/haus
app.onehaus/haus in the official MCP registry.
Endpoint https://mcp.onehaus.app/. Source: github.com/Im5tu/haus.
The registry describes it as: OneHaus household tools: tasks, calendar, contacts, pets, vehicles, documents and more.
We read its 77 tools on 2026-10-22. 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
create_contact update_contact delete_contact list_contacts create_appliance update_appliance delete_appliance list_appliances create_calendar_event update_calendar_event delete_calendar_event list_calendar_events create_document update_document delete_document list_documents create_pet update_pet delete_pet list_pets create_subscription update_subscription delete_subscription list_subscriptions create_vehicle update_vehicle delete_vehicle list_vehicles create_task update_task delete_task complete_task uncomplete_task assign_task list_tasks get_weather_forecast get_house list_house_members list_houses get_profile list_shopping_lists list_shopping_list_items add_shopping_list_item buy_shopping_list_item get_house_review defer_recommendation skip_recommendation store_memory update_memory forget_memory recall_memory create_calendar_subscription create_meal_plan update_meal_plan delete_meal_plan list_meal_plans create_recipe update_recipe delete_recipe list_recipes and 17 more
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The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/app-onehaus-haus)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.