MCP MeasureMCP Measure

index observed

TradeBasis US Market Appraisal

Free US vehicle averages in USD from matched asking prices. VIN optional; limited public pilot.

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
82%
Naming quality
80%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~674Tokens (tool definitions)
~7.1 KBTypical response size
Moderate attention impact (0.53% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "market-appraisal": {
      "url": "https://tradebasis.net/mcp/appraisal"
    }
  }
}

Remote endpoints

https://tradebasis.net/mcp/appraisalstreamable-http

What it can do

Tool inventory

Tools (1)

🟢 Read-only🟡 Write🔴 Delete⚪ Unknown
🟢appraise_vehicle(vin, year, make, model, trim, ...)

A derived TradeBasis asking-price market average. Supply year, make, model, trim and odometerMiles; VIN is optional. Omit market for nationwide US. May request a missing powertrain/body discriminator. Not a trade-in offer or completed-sale value.

Input Schema

{
  "type": "object",
  "properties": {
    "vin": {
      "type": "string",
      "maxLength": 30
    },
    "year": {
      "type": "integer"
    },
    "make": {
      "type": "string",
      "maxLength": 60
    },
    "model": {
      "type": "string",
      "maxLength": 80
    },
    "trim": {
      "type": "string",
      "maxLength": 80
    },
    "odometerMiles": {
      "type": "number",
      "minimum": 0,
      "maximum": 600000
    },
    "market": {
      "type": "string",
      "maxLength": 60,
      "description": "Optional US state name or two-letter state code, not the user's precise location. Omit for nationwide US."
    },
    "fuelType": {
      "type": "string",
      "enum": [
        "Gasoline",
        "Diesel",
        "Hybrid",
        "Plug-in Hybrid",
        "Electric"
      ]
    },
    "bodyStyle": {
      "type": "string",
      "maxLength": 50
    }
  },
  "required": [
    "odometerMiles"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Output Schema

{
  "type": "object",
  "properties": {
    "schemaVersion": {
      "type": "string",
      "const": "1.0"
    },
    "outcome": {
      "type": "string",
      "enum": [
        "COMPLETE",
        "INVALID_INPUT",
        "CLARIFICATION_REQUIRED",
        "INPUT_CONFLICT",
        "NO_MATCHES",
        "INSUFFICIENT_EVIDENCE",
        "PROVIDER_FAILURE",
        "TIMEOUT",
        "CANCELLED",
        "DISABLED",
        "DAILY_LIMIT",
        "ATTEMPT_LIMIT",
        "BUSY",
        "METER_UNAVAILABLE"
      ]
    },
    "message": {
      "type": "string"
    },
    "retryable": {
      "type": "boolean"
    },
    "retryAt": {
      "type": "string"
    },
    "clarificationFields": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "subject": {
      "type": "object",
      "properties": {
        "year": {
          "type": "number"
        },
        "make": {
          "type": "string"
        },
        "model": {
          "type": "string"
        },
        "trim": {
          "type": "string"
        },
        "odometerMiles": {
          "type": "number"
        },
        "identitySource": {
          "type": "string",
          "enum": [
            "manual",
            "vin-assisted"
          ]
        },
        "fuelType": {
          "type": "string"
        },
        "bodyStyle": {
          "type": "string"
        }
      },
      "required": [
        "year",
        "make",
        "model",
        "trim",
        "odometerMiles",
        "identitySource"
      ],
      "additionalProperties": false
    },
    "currency": {
      "type": "string",
      "const": "USD"
    },
    "requestedMarket": {
      "type": "string"
    },
    "actualMarket": {
      "type": "string"
    },
    "calculatedAt": {
      "type": "string"
    },
    "evidenceCount": {
      "type": "integer",
      "minimum": 0
    },
    "baseMarketAverage": {
      "type": "integer",
      "exclusiveMinimum": 0
    },
    "mileageAdjustment": {
      "type": "integer"
    },
    "mileageAdjustedMarketAverage": {
      "type": "integer",
      "exclusiveMinimum": 0
    },
    "mileageAdjustmentAvailable": {
      "type": "boolean"
    },
    "yearBracketUsed": {
      "type": "boolean"
    },
    "excludedCount": {
      "type": "integer",
      "minimum": 0
    },
    "methodology": {
      "type": "string"
    },
    "referralId": {
      "type": "string",
      "format": "uuid"
    }
  },
  "required": [
    "schemaVersion",
    "outcome",
    "message",
    "retryable",
    "currency",
    "requestedMarket",
    "calculatedAt",
    "evidenceCount",
    "mileageAdjustmentAvailable",
    "yearBracketUsed",
    "excludedCount",
    "methodology"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Community

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Evidence

Recent observations

verifiedversion not recorded1 tools