MCP connectors by uk.co.splusmoney.mcp

Free UK CIS tax refund estimates for self-employed construction subcontractors, from S+ Money (Sovereign Plus Tax Ltd, trading as S+ Money; company registration in progress). Two read-only tools: estimate_cis_refund (2025-26, 2026-27 and 2027-28 with Budget 2026 rules) and get_cis_tax_rates, with GOV.UK sources. No sign-in, nothing stored. An estimate, not tax advice.