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market-value

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UpdatedJuly 6, 2026 at 19:19

Get the current market value of a vehicle from its VIN using the CarsXE API. Use this when a user asks how much a car is worth, wants to know its value, or is thinking about buying/selling a vehicle.

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carsxe

carsxe/carsxe-codex-plugin

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Software DevelopersComputer and Mathematical Occupations·SOC 15-1252

SKILL.md

readonly

name	market-value
description	Get the current market value of a vehicle from its VIN using the CarsXE API. Use this when a user asks how much a car is worth, wants to know its value, or is thinking about buying/selling a vehicle.
license	MIT
version	1.0.0
author	CarsXE

When the user asks about a vehicle's price, worth, or market value and has a VIN:

Optionally refine the estimate with these parameters if the user mentions them:
- state — US state code (e.g., CA, TX) for regional pricing
- mileage — current mileage to adjust the value
- condition — vehicle condition: excellent, clean, average, or rough
Make an HTTP GET request to the CarsXE Market Value API:
```
GET https://api.carsxe.com/v2/marketvalue?key={CARSXE_API_KEY}&vin={VIN}&source=codex_plugin
```
Append &state=<STATE>, &mileage=<MILEAGE>, and/or &condition=<CONDITION> if provided.
Present the estimated market value clearly, including:
- Current value estimate
- Low / average / high range if available
- Historical trend if available
Provide helpful context (e.g., whether the value is strong for its age/mileage).
If the API key is missing, tell the user to set the CARSXE_API_KEY environment variable (see AGENTS.md).

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name	market-value
description	Get the current market value of a vehicle from its VIN using the CarsXE API. Use this when a user asks how much a car is worth, wants to know its value, or is thinking about buying/selling a vehicle.
license	MIT
version	1.0.0
author	CarsXE

When the user asks about a vehicle's price, worth, or market value and has a VIN:

Optionally refine the estimate with these parameters if the user mentions them:
- state — US state code (e.g., CA, TX) for regional pricing
- mileage — current mileage to adjust the value
- condition — vehicle condition: excellent, clean, average, or rough
Make an HTTP GET request to the CarsXE Market Value API:
```
GET https://api.carsxe.com/v2/marketvalue?key={CARSXE_API_KEY}&vin={VIN}&source=codex_plugin
```
Append &state=<STATE>, &mileage=<MILEAGE>, and/or &condition=<CONDITION> if provided.
Present the estimated market value clearly, including:
- Current value estimate
- Low / average / high range if available
- Historical trend if available
Provide helpful context (e.g., whether the value is strong for its age/mileage).
If the API key is missing, tell the user to set the CARSXE_API_KEY environment variable (see AGENTS.md).