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PayCalculator
au.com.paycalculator/mcp in the official MCP registry.
Endpoint https://mcp.paycalculator.com.au/mcp.
The registry describes it as: Australian pay, income tax, super, HECS, family payments and child care subsidy, using ATO rates.
On 2026-10-31 we read its 8 tools, but part of what it advertised was cut before our rules saw it: a description or schema past the size we read, more tools than we read, or a tool list split across pages. Nothing in the part we read matched, but the rest was not checked: this is not a clean result.
Tools it advertises
list_tax_years tax_rates inflation student_loan_repayment child_care_subsidy government_spending compare_income calculate_pay
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[](https://lazaretto.dev/mcp-registry/au-com-paycalculator-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.
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