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QueryLines
com.querylines/mcp in the official MCP registry.
Endpoint https://api.querylines.com/mcp.
The registry describes it as: Surplus lines market data, per query. U.S. E&S: premium, financials, litigation, catastrophe.
We read its 40 tools on 2026-10-28. 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
get_premium_sample list_lines get_coverage get_eligibility_sample get_citizens_sample list_carrier_lines get_carriers_sample get_premium get_summary get_top_insurers compare_states check_eligibility get_citizens_pif get_citizens_depopulation get_top_carriers get_carrier_profile compare_carrier_states list_cat_events get_cat_sample get_cat_counties get_cat_exposure get_cat_impact get_hazard_sample get_hazard get_hazard_premium get_solvency_sample get_carrier_solvency list_enforcement_actions get_rate_filings_sample get_rate_filings get_rate_activity get_rates_vs_premium get_syndicate_sample get_syndicate get_financials_sample get_carrier_financials get_financials_reinsurers get_financials_distress get_litigation_sample get_litigation_metrics
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The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/com-querylines-mcp)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.
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