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README.md

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+---
+license: other
+tags:
+  - vin
+  - nhtsa
+  - vpic
+  - vehicle
+  - database
+---
+
+# NHTSA vPIC Curated Vehicle Database
+
+Curated vehicle database derived from [NHTSA's vPIC](https://vpic.nhtsa.dot.gov/)
+data, optimized for VIN decoding via the [vin-decode-mcp](https://github.com/joakes90/vin-decode-mcp) server.
+
+## Source
+
+Data sourced from the National Highway Traffic Safety Administration (NHTSA),
+an agency of the United States Department of Transportation. NHTSA is a
+government agency and the services provided are free for use by the public
+as part of their Open Data initiative. No API key or registration required.
+
+**[Download NHTSA vPIC standalone databases](https://vpic.nhtsa.dot.gov/Downloads/)**
+
+## What's Included
+
+This is the **full vPIC SQLite database** with all NHTSA vehicle specification
+tables, including:
+
+| Category | Description |
+|---|---|
+| `make` | Vehicle manufacturers (~12,328) |
+| `model` | Vehicle models (~31,869) |
+| `vehicletype` | Vehicle type categories |
+| `make_model` | Make/model relationships |
+| `wmi` | World Manufacturer Identifiers (~12,971) |
+| `wmi_vinschema` | WMI to VIN schema mapping |
+| `vin_pattern` | VIN descriptor patterns (~1.67M) |
+| `vin_exception` | VIN exception rules (~18,805) |
+| `vinschema` | VIN schema definitions |
+| `model_years` | Production year ranges |
+| `engine_*` | Engine specifications (model, model, pattern, etc.) |
+| `body_*` | Body specifications (style, cab, type, etc.) |
+| `fuel_*` | Fuel specifications (type, delivery, tank, etc.) |
+| `safety_*` | Safety equipment (airbags, brakes, ABS, etc.) |
+| `battery_*` | Battery/electrification specs |
+| `transmission` | Transmission types |
+| `drivetype` | Drive types (FWD, RWD, AWD, etc.) |
+
+## Database Stats
+
+- **Size**: ~627 MB
+- **Format**: SQLite (`.db`)
+- **Source vintage**: 2026-08
+
+## Coverage
+
+US-market vehicles, model year 1981 and forward. Includes:
+- Passenger Cars
+- Trucks
+- MPVs (Multipurpose Passenger Vehicles)
+- Motorcycles
+- Off-Road Vehicles
+
+Excluded: Buses, Trailers, Low-Speed Vehicles, Incomplete Vehicles.
+
+## Usage
+
+Download the `.db` file and use with the MCP server:
+
+```bash
+export VIN_MCP_DB_PATH=/path/to/vPIC_sqlite.db
+vin-decode-mcp
+```
+
+Or query directly:
+
+```python
+import sqlite3
+conn = sqlite3.connect("vPIC_sqlite.db", uri=True)
+conn.row_factory = sqlite3.Row
+
+# List makes
+makes = conn.execute("SELECT * FROM make ORDER BY name").fetchall()
+```
+
+## Refresh Frequency
+
+This database is rebuilt from NHTSA's standalone databases approximately
+every 6-12 months. Check the build timestamp in `dataset_info` for the
+source vintage.
+
+## Attribution
+
+Vehicle data: [NHTSA vPIC](https://vpic.nhtsa.dot.gov/)
+Curated database pipeline: [vin-decode-mcp](https://github.com/joakes90/vin-decode-mcp)