# b2a.vin
> Business-to-agent: the buyer is an autonomous agent — wallet, Mandate ceiling, no human leaf anywhere.

Sell vehicle capability to the autonomous agent — the buyer with a wallet and a Mandate ceiling and no human leaf anywhere: it discovers by VIN, reads the posted OFFER, and settles under x402 on first contact.

Motions: B2A
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://apis.vin/ — Keys at apis.vin/keys · the estate MCP at apis.vin/mcp · every unit price posted
https://listings.vin/ — 2.1M+ live listings, keyless — the family's pure-B2A read at scale
https://b2h2a.vin/ — The human at exactly one step — typed NEEDS_HUMAN Handoffs, the agent resumes on approval
https://b2a2c.vin/ — An agent shopping for a consumer returns a receipt the principal can read
https://all.vin/ — Every door, one record: all.vin/