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io.insourcia/insourcia
io.insourcia/insourcia in the official MCP registry.
Endpoint https://mcp.insourcia.io/mcp.
The registry describes it as: Search French companies: financials, directors, ownership, M&A and insolvency events.
We read its 21 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules.
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_companies resolve_companies get_company get_financials reveal_director_email get_account unlock_premium_data get_directors search_directors search_director_companies search_events get_events get_credit_risk get_company_graph create_saved_search watch_company unwatch_company list_saved_searches list_watched_companies get_news mark_news_read
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-insourcia-insourcia)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.