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Laudus MCP by usefulapi

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

The registry describes it as: Read Laudus ERP customers, sales, purchases, stock and accounting reports; create customers.

Connect it

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

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

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

code --add-mcp '{"name":"laudus","type":"http","url":"https://laudus.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

laudus_list_customers laudus_list_sales_invoices laudus_list_sales_orders laudus_list_sales_quotes laudus_list_sales_receipts laudus_list_products laudus_list_product_categories laudus_list_warehouses laudus_list_salesmen laudus_list_suppliers laudus_list_purchase_invoices laudus_list_purchase_orders laudus_list_accounts laudus_list_journal_entries laudus_list_cost_centers laudus_get_customer laudus_get_sales_invoice laudus_get_sales_order laudus_get_sales_quote laudus_get_product laudus_get_supplier laudus_get_purchase_invoice laudus_get_purchase_order laudus_get_journal_entry laudus_customer_pending_invoices laudus_customer_credit_limit laudus_list_customer_contacts laudus_sales_invoice_receipts laudus_pending_sales_orders laudus_sales_report laudus_get_product_stock laudus_list_stock laudus_product_kardex laudus_balance_sheet laudus_profit_and_loss laudus_general_ledger laudus_purchase_ledger laudus_create_customer

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 (2026-11-01): 7198dc2a67c6a297. 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-laudus/badge.svg)](https://lazaretto.dev/mcp-registry/io-usefulapi-laudus)

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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