# UK Taxi PHV Regulatory Decision Layer > MCP-native England taxi/private-hire licensing preflight and cross-authority comparison. MCP: https://uk-taxi-phv-mcp-production-6ef3.up.railway.app/mcp Registry: io.github.ChanghuLiu/uk-taxi-phv-regulatory-decision-layer Version: 1.0.0 Free tools: taxi_phv_info, list_supported_authorities, licensing_source_status. Paid tools: taxi_licence_preflight ($0.02 USDC), compare_licensing_requirements ($0.05 USDC). Payment: x402 v2 on Base mainnet. Freshness: fail closed per affected rule when current official evidence is not usable. Safety: preflight information only; not licensing-authority approval or legal advice.