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Afriref: cited government reference data
dev.afriref/reference-data in the official MCP registry.
Endpoint https://afriref.dev/mcp. Source: github.com/3L-GroupConsulting/afriref-mcp.
The registry describes it as: Cited official data: tax, VAT, CPI, policy rates, wages, holidays, FX. 128 countries+EU, 7 regions.
We read its 34 tools on 2026-10-22. 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
list_series get_public_holidays get_public_holidays_worldwide get_key_balance is_business_day add_business_days business_days_between get_series get_series_history get_filing_deadlines check_minimum_wage compute_vat count_working_days settlement_date compute_income_tax compute_statutory_interest compute_payroll cost_hire charge_sale charge_sale_certified invoice_payable evidence_pack hire_compare next_filings domain_check domain_age verify_answer_receipt get_snapshot get_country_brief compare_series validate_tax_id get_changes get_calendar register_alert
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[](https://lazaretto.dev/mcp-registry/dev-afriref-reference-data)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.