# PlateHarbor API

> PlateHarbor publishes public JSON resources for state renewal rules, county emissions rules, and a vehicle eligibility checker.

## Discovery

- [API landing resource](https://api.plateharbor.com/): API entrypoint with service links.
- [OpenAPI specification](https://api.plateharbor.com/openapi.json): Machine-readable OpenAPI 3.1 contract.
- [API catalog](https://api.plateharbor.com/.well-known/api-catalog): Linkset for service description and docs.
- [MCP endpoint](https://api.plateharbor.com/mcp): Read-only MCP server for tool-based agents.
- [Human-readable API docs](https://plateharbor.com/developers/api): Developer-facing documentation and examples.
- [API sitemap](https://api.plateharbor.com/sitemap.xml): API-hosted sitemap for public JSON resources.

## Public resources

- [States](https://api.plateharbor.com/api/v1/states)
- [Pages](https://api.plateharbor.com/api/v1/pages)
- [Colorado renewal example](https://api.plateharbor.com/api/v1/renewal/colorado)
- [Colorado new resident guide example](https://api.plateharbor.com/api/v1/situations/colorado/new-resident)
- [Denver emissions example](https://api.plateharbor.com/api/v1/emissions/colorado/denver)
- [Maricopa emissions example](https://api.plateharbor.com/api/v1/emissions/arizona/maricopa)
- [Eligibility checker example](https://api.plateharbor.com/api/v1/check?state=arizona&county=maricopa&vehicle_age=8&fuel_type=gas)