# b2a2c.vin > Your agent buys the car. Your user reads the receipt. Delegate any car moment by its VIN — your agent shops verified Listings, never crosses the Mandate ceiling, and returns a receipt the principal can read. Motions: B2A2C Routes: GET / (this document's page) · GET /{VIN} (the record for one vehicle) Representations: text/html · text/markdown · application/json (Accept header; same URL) Evidence: every field posts value · source · timestamp · verification state; empty states are typed EMPTY, invalid VINs are typed INVALID_VIN — never a faked 200. Agent surface: one estate MCP server — https://apis.vin/mcp (all .vin doors are lenses over one spine; tools: decode_vin, vehicle_history, market_value, window_sticker, out_the_door_price, open_recalls, search_listings, cash_offer, transport_quote, finance_prequal, insurance_quote, start_purchase) Gates: typed OFFER (posted price, hard ceiling, x402) or NEEDS_HUMAN handoff URL — no account walls. Auth: https://auth.vin (issuer) · keys/metering via id.org.ai Siblings: https://buy.vin/ — The checklist this motion runs in production — B2A2C + B2H2A on https://offers.vin/ — Offer, payoff, net-to-you posted before the principal accepts https://vhr.vin/ — The per-report OFFER an agent settles under ceiling https://apis.vin/ — The record as a response — every call priced on the page https://all.vin/ — Every door, one record: all.vin/