mcp
The mcp noun — identity, lifecycle, events, and every capability as an anchored section: 3 capabilities, 0 live, 3 sandbox, 0 declared.
mcp is one of the estate's 317 automotive nouns — a job a car needs done. It carries 3 capabilities: 0 live, 3 sandbox, 0 declared · doors aggregator.vin.
Identity
| Noun | mcp |
| Pillar | Data (facets: 3 data) |
| Capabilities | 3 — 0 live · 3 sandbox · 0 declared |
| Entities | Connection |
| Doors | aggregator.vin |
| SDK | Vin.mcp.* from apis.vin |
| Address | /catalog/mcp#{action} — the anchor IS the wire name minus mcp. |
Events
The vocabulary this noun can append to the record — 2 past-tense, versioned event types, each linked to the capability that emits it:
Mcp.registered@1— emitted byregisterMcp.toolCalled@1— emitted bycallTool
Apply & book
register
mcp.register · POST /mcps/register · gate key · sandbox · answers McpRegister@1
No input — this capability takes no request body.
Door — aggregator.vin serves this noun on its two routes: / (the landing) · /1FA6P8CF1R5419534 (the VIN lens).
Try it — sandbox: every call answers a deterministic, provenance-labeled simulated payload ({ environment, simulated } in the body). Force any documented outcome with the magic triggers. Going live is a connect, never a ballot: submit the credential at integrates.vin (dealer systems) or connects.vin (consumer accounts) — submissions enter the activation queue and rank live rollout.
Emits — Mcp.registered@1.
import { mcp } from 'apis.vin'
// the gate law is in the type system: Answer<T> = Ok | Empty | Blocked | Offer
const answer = await mcp.register()curl -X POST https://apis.vin/mcps/register \
-H 'content-type: application/json' \
-d '{}'Receipt — the sandbox wire answered the request above with this exact body at build time. Captured by the receipts runner (timestamped, provenance in the payload), never authored; it re-executes only when this descriptor changes.
{
"type": "OK",
"answers": "McpRegister@1",
"value": {
"server": "estate-mcp",
"registered": true,
"serverRef": "MCP-0Q2ICFG",
"protocol": "mcp",
"toolCount": 3,
"asOf": "2026-08-10"
},
"evidence": {
"server": "estate-mcp",
"registered": true,
"serverRef": "MCP-0Q2ICFG",
"protocol": "mcp",
"toolCount": 3,
"asOf": "2026-08-10"
},
"provenance": {
"simulated": true,
"environment": "sandbox",
"source": "ai-sandbox"
},
"events": [],
"meter": {
"charged": "0.00",
"posted": false
}
}More actions
callTool
mcp.callTool · POST /mcps/call-tool · gate key · sandbox · answers McpCallTool@1
No input — this capability takes no request body.
Door — aggregator.vin serves this noun on its two routes: / (the landing) · /1FA6P8CF1R5419534 (the VIN lens).
Try it — sandbox: every call answers a deterministic, provenance-labeled simulated payload ({ environment, simulated } in the body). Force any documented outcome with the magic triggers. Going live is a connect, never a ballot: submit the credential at integrates.vin (dealer systems) or connects.vin (consumer accounts) — submissions enter the activation queue and rank live rollout.
Emits — Mcp.toolCalled@1.
import { mcp } from 'apis.vin'
// the gate law is in the type system: Answer<T> = Ok | Empty | Blocked | Offer
const answer = await mcp.callTool()curl -X POST https://apis.vin/mcps/call-tool \
-H 'content-type: application/json' \
-d '{}'Receipt — the sandbox wire answered the request above with this exact body at build time. Captured by the receipts runner (timestamped, provenance in the payload), never authored; it re-executes only when this descriptor changes.
{
"type": "OK",
"answers": "McpCallTool@1",
"value": {
"tool": "vehicle.decode",
"protocol": "mcp",
"isError": false,
"result": {
"content": [
{
"type": "text",
"text": "sandbox result for vehicle.decode"
}
],
"structured": {
"echo": {}
}
}
},
"evidence": {
"tool": "vehicle.decode",
"protocol": "mcp",
"isError": false,
"result": {
"content": [
{
"type": "text",
"text": "sandbox result for vehicle.decode"
}
],
"structured": {
"echo": {}
}
}
},
"provenance": {
"simulated": true,
"environment": "sandbox",
"source": "ai-sandbox"
},
"events": [],
"meter": {
"charged": "0.00",
"posted": false
}
}listTools
mcp.listTools · GET /mcps/list-tools · gate none · sandbox · answers McpListTools@1
No input — this capability takes no request body.
Door — aggregator.vin serves this noun on its two routes: / (the landing) · /1FA6P8CF1R5419534 (the VIN lens).
Try it — sandbox: every call answers a deterministic, provenance-labeled simulated payload ({ environment, simulated } in the body). Force any documented outcome with the magic triggers. Going live is a connect, never a ballot: submit the credential at integrates.vin (dealer systems) or connects.vin (consumer accounts) — submissions enter the activation queue and rank live rollout.
import { mcp } from 'apis.vin'
// the gate law is in the type system: Answer<T> = Ok | Empty | Blocked | Offer
const answer = await mcp.listTools()curl 'https://apis.vin/mcps/list-tools'Receipt — the sandbox wire answered the request above with this exact body at build time. Captured by the receipts runner (timestamped, provenance in the payload), never authored; it re-executes only when this descriptor changes.
{
"type": "OK",
"answers": "McpListTools@1",
"value": {
"server": "estate",
"protocol": "mcp",
"tools": [
{
"name": "vehicle.decode",
"description": "Decode a VIN to its encoded facts.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
},
{
"name": "valuation.get",
"description": "Book value bands for a VIN.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
},
{
"name": "history.report",
"description": "Title, odometer, and event history.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
}
],
"toolCount": 3,
"asOf": "2026-08-10"
},
"evidence": {
"server": "estate",
"protocol": "mcp",
"tools": [
{
"name": "vehicle.decode",
"description": "Decode a VIN to its encoded facts.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
},
{
"name": "valuation.get",
"description": "Book value bands for a VIN.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
},
{
"name": "history.report",
"description": "Title, odometer, and event history.",
"inputSchema": {
"type": "object",
"properties": {
"vin": {
"type": "string"
}
}
}
}
],
"toolCount": 3,
"asOf": "2026-08-10"
},
"provenance": {
"simulated": true,
"environment": "sandbox",
"source": "ai-sandbox"
},
"events": [],
"meter": {
"charged": "0.00",
"posted": false
}
}Data model
The record shape behind this noun — one entity, each property an evidence field. See the whole estate model on the data model page.
Connection
Modeled
The noun drawn out — its record shape, its lifecycle, and how it is exercised end to end. 2 diagrams, rendered from the estate model.
Mcp · Class model
Mcp · Sequence
Generated from the catalog. Every capability, answer, gate, and entity on this page is a rendered descriptor — it cannot drift from the wire.