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AdvBox

io.github.mcp-dir/advbox-mcp in the official MCP registry. Endpoint https://api.mcp.ai/p_advbox. Source: github.com/mcp-dir/advbox-mcp.

The registry describes it as: Wrapper for the official AdvBox API (legal practice management): cases (with history, movements, pub

We read its 26 tools on 2026-10-29. 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.

Connect it

The endpoint answers MCP over HTTP; that is how we read it. Add it to your client:

Claude Code

claude mcp add --transport http advbox-mcp https://api.mcp.ai/p_advbox

Cursor: ~/.cursor/mcp.json

{
  "mcpServers": {
    "advbox-mcp": {
      "url": "https://api.mcp.ai/p_advbox"
    }
  }
}

VS Code

code --add-mcp '{"name":"advbox-mcp","type":"http","url":"https://api.mcp.ai/p_advbox"}'

Some servers ask you to sign in the first time a client connects, or want a key from the people who run them; the server's own docs say which.

Let Claude Code check servers as it adds them

With the free lazaretto-guard plugin installed, when Claude Code adds a server for you or writes one into an MCP config, the plugin reads the server's tools first and asks you if one of our rules matches. Install it, restart Claude Code, then ask it to run the command above.

Install lazaretto-guard

claude plugin marketplace add jamesdfinance-dev/lazaretto-plugins
claude plugin install lazaretto-guard@lazaretto-plugins

Tools it advertises

advbox_settings advbox_list_customers advbox_get_customer advbox_customers_birthdays advbox_create_customer advbox_list_lawsuits advbox_get_lawsuit advbox_create_lawsuit advbox_update_lawsuit advbox_lawsuit_history advbox_lawsuit_movements advbox_create_movement advbox_last_movements advbox_list_posts advbox_create_post advbox_publications advbox_list_transactions advbox_get_transaction advbox_create_transaction advbox_update_transaction show_version report_bug connect toolkit_info marketplace authenticate

Run this server? Show the check in your README

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Markdown

[![MCP tool check](https://lazaretto.dev/mcp-registry/io-github-mcp-dir-advbox-mcp/badge.svg)](https://lazaretto.dev/mcp-registry/io-github-mcp-dir-advbox-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.