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AAP 3.0.0

Automotive.
Built for
AI agents.

The open automotive contract for MCP, A2A and PAP. Discover dealerships, search real inventory and connect with consent.

Open source · Five automotive skills · Three native interfaces

YOUR BUYER AGENTConnected by a shared contract
MCP
A2A
PAP
THE AUTOMOTIVE LAYERAuto Agent Protocol

Same skills. Same facts. Same consent.

The dealershipLive inventory Vehicle evidence CRM
DEALER-DOMAIN DISCOVERYagent-card.json · poppy.json · llms.txt

ONE CONTRACT. THREE NATIVE INTERFACES.

Meet agents where
they already work.

Choose an interface. Keep the automotive meaning.

Tools your agent can discover and call.

Model Context Protocol tools with complete schemas and structured automotive results. Current and legacy clients.

Read the MCP binding
  1. 01Discover tools
  2. 02Call aap_inventory_search
  3. 03Read structuredContent
See the request shape inventory.search

MCP tools/call parameters · request metadata omitted

{
"name": "aap_inventory_search",
"arguments": {
"type": "inventory.search.request",
"filters": {
"body": [
"suv"
],
"price_max": 35000,
"status": [
"available"
]
},
"pagination": {
"limit": 20
},
"sort": {
"field": "price",
"order": "asc"
},
"privacy": {
"anonymous": true
}
}
}
Complete headers and exchange

FACTS AN AGENT CAN USE

Less guessing.
More evidence.

Go beyond a listing title. Search supported constraints and explain why a vehicle matches.

  • Equipment backed by a source
  • Price includes mandatory dealer charges
  • Explicit availability and update time
  • Distance and complete cursor pagination
Explore the search contract
ILLUSTRATIVE LISTINGAvailable
2024 · USED SUV

Example Tourer

$32,995Mandatory dealer fees included
Heated front seatsPresent

“Heated front seats”Source: vehicle window sticker

feature_evidence[0].status: "present"
18.400 miTo selling rooftopSource timestamp2026-10-24 10:00 UTC

Fictional data illustrating the contract. No live inventory query.

DISCOVERABLE ON THE DEALER’S DOMAIN

The website becomes
an agent entry point.

Publish the exact MCP endpoint alongside the Agent Card, Poppy discovery and a concise llms.txt. Keep every link aligned with the working service.

See the discovery contract

Discovery makes capabilities readable. Each agent still chooses which supported interface to use.

Dealer llms.txt example ↗

BUILT FOR THE VERTICAL

Automotive detail,
shared across vehicle types.

Cars

Body, drivetrain and mileage

Motorcycles

Segment and engine displacement

Electric powertrains

Range, battery and charging

Read the vehicle contract

OPEN SPECIFICATION. PRACTICAL BUILDING BLOCKS.

Build the next
automotive connection.

SCHEMAS · TYPES · VALIDATION
npm install @autoagentprotocol/schemas@3.0.0 @autoagentprotocol/types@3.0.0 @autoagentprotocol/validator@3.0.0
Apache-2.0 specification and schemas · CC BY 4.0 documentationContribute on GitHub