Official public-data x402 shop at https://ticks.bnm.farm. Paid GETs are USDC on Base (eip155:8453); the payout address is the agentWallet service. Live paid URLs are https://ticks.bnm.farm/.well-known/x402 (do not hardcode a door count). MCP is Streamable HTTP at https://ticks.bnm.farm/mcp. Unpaid GET on a paid path returns HTTP 402. Free discovery includes /sample, /firm-check, per-door manifests, /openapi.json, and /llms.txt.