Home / MCP registry index / io.github.douglac/contaazul-mcp
Conta Azul MCP
io.github.douglac/contaazul-mcp in the official MCP registry.
Endpoint https://api.mcp.ai/contaazul. Source: github.com/douglac/contaazul-mcp.
The registry describes it as: Conta Azul ERP MCP — sales, customers, finance and NF-e via OAuth 2.0. Read + write, 35 tools.
We read its 58 tools on 2026-10-26. 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
contaazul_list_accounts contaazul_get_company contaazul_list_people contaazul_get_person contaazul_person_write_create contaazul_person_write_update contaazul_person_delete contaazul_list_products contaazul_product_write contaazul_list_services contaazul_service_write contaazul_list_sales contaazul_list_sale_items contaazul_get_sale contaazul_sale_write_create contaazul_sale_write_update contaazul_sale_cancel contaazul_list_contracts contaazul_contract_write contaazul_list_receivables contaazul_receivable_create contaazul_list_payables contaazul_payable_create contaazul_list_installments contaazul_get_installment contaazul_update_installment contaazul_list_financial_accounts contaazul_get_account_balance contaazul_list_categories contaazul_list_cost_centers contaazul_list_invoices_nfe contaazul_get_invoice_nfe contaazul_list_invoices_nfse contaazul_settle_installment contaazul_list_settlements contaazul_get_settlement contaazul_update_settlement contaazul_delete_settlement contaazul_list_transfers contaazul_get_initial_balance contaazul_list_changed_events contaazul_generate_charge contaazul_get_charge contaazul_cancel_charge contaazul_get_contract contaazul_contract_next_number contaazul_terminate_contract contaazul_delete_contract contaazul_list_budgets contaazul_get_budget contaazul_create_budget contaazul_delete_budgets show_version report_bug connect toolkit_info marketplace authenticate
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/io-github-douglac-contaazul-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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