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KiotViet MCP by usefulapi

io.usefulapi/kiotviet in the official MCP registry. Endpoint https://kiotviet.usefulapi.io/mcp. Source: github.com/m190/usefulapi-mcp.

The registry describes it as: Read KiotViet products, customers, invoices, orders and stock; create customers and orders.

Connect it

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

claude mcp add --transport http kiotviet https://kiotviet.usefulapi.io/mcp

{
  "mcpServers": {
    "kiotviet": {
      "url": "https://kiotviet.usefulapi.io/mcp"
    }
  }
}

code --add-mcp '{"name":"kiotviet","type":"http","url":"https://kiotviet.usefulapi.io/mcp"}'

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.

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

Tools it advertises

kiotviet_list_products kiotviet_get_product kiotviet_get_product_by_code kiotviet_list_categories kiotviet_get_category kiotviet_list_customers kiotviet_get_customer kiotviet_get_customer_by_code kiotviet_create_customer kiotviet_list_invoices kiotviet_get_invoice kiotviet_get_invoice_by_code kiotviet_list_orders kiotviet_get_order kiotviet_get_order_by_code kiotviet_create_order kiotviet_list_branches kiotviet_list_stock kiotviet_list_suppliers kiotviet_get_supplier kiotviet_list_purchase_orders kiotviet_get_purchase_order kiotviet_list_supplier_orders kiotviet_list_returns kiotviet_get_return kiotviet_list_cashflow kiotviet_list_users kiotviet_list_price_books kiotviet_get_price_book

Tool changes

We compare every full read of this server with the one before. No change in what its tools say has been seen since we started keeping this record on 2026-10-30.

Fingerprint of its tools at our last full read (2026-10-31): 1554688b36d6c0b5. A client can hash the tools it is served the same way and compare; the full value and a hash per tool are in this page as JSON.

Run this server? Show the check in your README

The badge reflects the latest weekly read:

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

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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