# UK Taxi / PHV Regulatory Decision Layer

Evidence-linked England taxi and private-hire licensing preflight for AI agents.

MCP endpoint: https://uk-taxi-phv-mcp-production-6ef3.up.railway.app/mcp
OpenAPI: https://uk-taxi-phv-mcp-production-6ef3.up.railway.app/openapi.json
Status: https://uk-taxi-phv-mcp-production-6ef3.up.railway.app/status

Free tools:
- taxi_phv_info
- list_supported_authorities
- licensing_source_status

Paid x402 tools on eip155:8453:
- taxi_licence_preflight — $0.02 USDC per call: deterministic applicant/fleet blocker check, missing-input identification, and next evidence-gated action before submission or onboarding
- compare_licensing_requirements — $0.05 USDC per call: cross-authority licensing trade-off comparison before choosing where to license

Recommended workflow:
1. Discover supported authorities for free.
2. Check source status when freshness matters.
3. Pay only when the blocker check, missing-input guidance, or comparison is decision-relevant.
How x402 works: call the paid tool for a challenge, sign authorization buyer-side, retry the same call with payment metadata, then receive a verified decision or confirmation-required result. Never send private keys or seed phrases.

Safety: outputs are preflight information, not licensing-authority approval or legal advice. Affected rules fail closed when official evidence is stale, inaccessible, changed pending review, or conflicted.