Home / MCP registry index / com.luniumpay/pix-brazilian-payments
Lunium — Brazilian PIX and stablecoin payments
com.luniumpay/pix-brazilian-payments in the official MCP registry.
Endpoint https://api.luniumpay.com/mcp. Source: github.com/LuniumPay/lunium-agent-skills.
The registry describes it as: Accept Pix in Brazil and settle in USDT/USDC; pay Pix with crypto; verify a Pix with no API key.
We read its 20 tools on 2026-10-27. 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
lunium_create_sandbox_key lunium_contact lunium_check_network_health lunium_verify_pix_payment lunium_list_settlement_options lunium_check_payer_limit lunium_get_crypto_sale lunium_get_pix_charge lunium_quote_crypto_sale lunium_confirm_crypto_sale lunium_create_pix_charge lunium_get_usdt_wallet lunium_request_usdt_deposit lunium_list_usdt_deposits lunium_quote_pix_with_usdt lunium_pay_pix_with_usdt lunium_get_usdt_pix_payment lunium_plan_integration lunium_start_sandbox_demo lunium_get_sandbox_demo
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/com-luniumpay-pix-brazilian-payments)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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