---
name: hashgraph-online-year-make-model
description: "Look up vehicle data by Year, Make, and Model using the CarsXE YMM API. Use this when a user doesn't have a VIN but knows the year, make, and model of a vehicle and wants specs, trims, or features."
license: "Apache-2.0"
metadata:
  decimalai-skill-id: "6cf1acbd-96af-43b3-b0c0-f70cd671377c"
  decimalai-version-id: "8c5aa929-cf34-41ff-8c5f-ecaa9c39427b"
  decimalai-version: "1"
  decimalai-body-sha256: "d3ccf1a15a4c32de56a876a376a76c0d8762c973659a4a751a6f84945fb8b2ea"
  decimalai-name: "hashgraph-online/year-make-model"
  decimalai-format: "1"
  decimalai-invocation: "model"
  decimalai-category: "industry"
  decimalai-source: "https://app.decimal.ai/s/hashgraph-online-year-make-model@1/SKILL.md"
---
When the user asks about a vehicle by year, make, and model (without a VIN):

1. Make an HTTP GET request to the CarsXE YMM API:
   ```
   GET https://api.carsxe.com/v1/ymm?key={CARSXE_API_KEY}&year={YEAR}&make={MAKE}&model={MODEL}&source=codex_plugin[&trim={TRIM}]
   ```
   Only include `trim` if the user specified one.
2. Present available trims, engine options, features, and specs.
3. If the user didn't specify a trim, list all available trims for that year/make/model.
4. If the API key is missing, tell the user to set the `CARSXE_API_KEY` environment variable (see AGENTS.md).