b2a2b.vin
Become a partner

Motion door · the partners’ line · held

Agent-brokered trade between businesses.
Mandate presented, fee disclosed, settlement posted.

Present.Narrow.Settle.

The brokered chain is the desk between businesses: a fee at every hop, none of them posted; numbers re-litigated at every hop; delegation nobody can audit. An agent cannot be charmed at the desk; it can only read what is posted, and a chain that can’t be read is a chain it won’t trade through.

For the dealer principal, lender, wholesaler, or transporter: the businesses agents will trade with. This door is held: it posts the motion now and goes live when the Mandate-chain and settlement shapes land.

2025 Mazda CX-5 · check digit 1 · verified

The Mandate, presentedb2a2b.vin/JM3KFBXY1S0597748

JM3KFBXY1S0597748

2025 Mazda CX-5

  • ceilingThe most this agent can bind: hard, in the shape; a hop above it fails the checkPosts live
  • scopeWhat this agent may settle, enumerated: this unit, nothing beside itThis VIN
  • expiryThe authority is dated: a stale Mandate binds nothingDated
  • issuerSigned, so your side verifies it before the deal formsauth.vin

This card states the Mandate's shape, not a deal. A presented Mandate posts its values at the gate; a value not yet issued states itself in words, never a stand-in.

Authority you can check.

Every hop holds strictly less authority than the hop above, or the deal does not form.

The buyer’s agent presents a Mandate (ceiling · scope · expiry), and every sub-delegation only narrows: tighter ceiling, tighter scope, earlier expiry, machine-checkable end to end. A hop that widens fails the check; the deal never forms on unverifiable authority.

The chain, machine-checkedNarrows, or stops
  • The buyer's agentPresents the MandateCeiling Posts liveScope This VINExpiry DatedVerified at auth.vin
  • A broker, one hop downSub-delegatesCeiling TighterScope NarrowerExpiry EarlierNarrows: verified
  • The next hopSub-delegates againCeiling TighterScope NarrowerExpiry EarlierNarrows: verified
  • A hop that widensAsks for more than the hop aboveCeiling WiderScope WiderExpiry LaterFails: the deal does not form

Structure, not state: this is the rule drawn, not a deal. On a live exchange each hop posts its own ceiling, scope and expiry, and the widening hop is the one that stops the deal, in the open.

The audit is the precondition, not the aftermath.

One fee, posted.

The broker's margin is a disclosed number on the record, not a spread discovered at settlement.

Deltas signed and sourced, like every other number in the family. If a fee isn’t posted, it isn’t owed: a hidden spread is a conformance failure, not a business model.

Three-way atomic settlement. Buyer’s side, seller’s side, broker’s fee: posted as settlement lines on one shared record and settled in one act. Nothing to re-litigate, because nothing was withheld.

The settlement linesOne shared record
  • Buyer’s sideInside the Mandate ceiling, by constructionPosts live
  • Seller’s sideThe posted unit, at its posted numberPosts live
  • Broker’s feeOne disclosed number, with its recipient: no spreadPosts live
SettledOne act

All three lines settle together, or none does.

Until the x402 rail lands, settlement renders as the typed OFFER shape (posted price, hard ceiling, checkout fallback) with its state labeled: the shape is real; the rail is pending, posted as such.

The value of agents, posted.

The agent reads the same record you do.

You didn’t build the asymmetry, but you pay its tax: every close starts from suspicion, and straight stores subsidize crooked ones. Buyers’ agents arrive mid-checklist presenting a Mandate; your units answer them or a competitor’s do. VIN-certified acquires a machine meaning: every unit resolves, decodes, and prices at its own address, in every representation. The check digit certifies; it never sells.

The Settlement Plan: present, narrow, settle
  1. 01PresentThe buyer's agent presents its Mandate against your posted unit: ceiling · scope · expiry, verifiable at auth.vin. Your inventory answered; no pitch was involved.
  2. 02NarrowAny sub-delegation in the chain carries strictly less authority than the hop above; the chain machine-checks or the deal stops here, in the open. The audit is the precondition, not the aftermath.
  3. 03SettleOne disclosed fee, three settlement lines, one atomic act, posted as events on the shared record. The close is the short part.

Distance to done: 3 steps.

Put your inventory on VIN rails: the dealer’s counter at vin.company. Their machines onboard at the one platform MCP, apis.vin/mcp.

The dealer’s counter at vin.company
Read the bookAgentic Car Business: agent-led sales motions, free PDF

The motions.

Five motions, one grammar: who the principal is, and where the human appears.

The buyers’ motions put an agent in front of a seller. The partners’ line is the other side: the businesses agents trade with, and the products that carry the capability downstream.

Held names stay quiet marks until they go live: b2a2b.vin and b2a2d.vin post the motion now and transact nothing.

Posted.

What this page is, what the rails are, what this door settles.

  • This pageSells nothing and meters nothing: it is the sales page for trading with agents on VIN rails.
  • The railsThe businesses it convinces onboard at the dealer’s counter on vin.company; their machines onboard at apis.vin/mcp. Built on VIN rails.
  • This doorHeld: it goes live when the Mandate-chain and settlement shapes land. Until then nothing here settles.

Questions with posted answers.

What is a Mandate?

The buyer’s agent’s posted authority: a ceiling it cannot exceed, a scope it cannot leave, an expiry it cannot outlive, signed so your side can verify it before the deal forms. Sub-delegation only narrows all three.

Who pays the broker, and how much?

The fee is one disclosed number posted on the record before settlement. If a fee isn’t posted, it isn’t owed: a hidden spread is a conformance failure, not a business model.

What does my business have to do?

Post your inventory on VIN rails. An agent cannot be charmed at the desk; it can only read what is posted, so the whole job is having answers where agents read. Your units answer them or a competitor’s do.

The motion is one face of the record.

The other addresses read the same seventeen characters.

For the agent you send.

The agent reads the same record you do.

Same two routes, three representations: the numbers never differ between them.

Three representationsb2a2b.vin
1curl https://b2a2b.vin/ -H 'accept: text/markdown'
2 # the markdown twin of this page
3curl https://b2a2b.vin/{VIN} -H 'accept: application/json'
4 # the record as typed evidence objects
5curl https://b2a2b.vin/{VIN} -H 'accept: text/markdown'
6 # the record's markdown twin
On this host
  • Motionsb2a2bAgents brokering between businesses: Mandate presented, fee disclosed, settlement three-way
  • Machine surfaces/llms.txt/icp.json/.well-known/agents.json
  • One MCP serverapis.vin/mcp serves the whole platform: every door’s tools in one server, each result carrying its door’s URL.
  • AttributionX-Client-Type: html | md | json | mcp names which reader arrived; it never changes the record.