# CityCheck — US City Data Platform
> Free public data and APIs for 3,200+ US cities. Safety grades, crime rates, cost of living, climate data, and local activity listings. No API key required.

## Safety & Crime API
- [All Cities](https://citycheck.live/api/v1/safety/cities): 3,200+ cities with safety grades (A+ to F), risk levels, crime rates
- [City Detail](https://citycheck.live/api/v1/safety/city/{state}/{city}): Full safety profile with crime breakdowns and FAQs
- [State Overview](https://citycheck.live/api/v1/safety/state/{state}): State aggregate stats with all cities
- [Compare Cities](https://citycheck.live/api/v1/safety/compare/{slug}): Head-to-head safety comparison
- [Safest Cities](https://citycheck.live/api/v1/safety/safest): Top 50 safest cities nationally

## Cost of Living API
- [All Cities](https://citycheck.live/api/v1/cost-of-living): 200+ cities with indices for housing, groceries, transportation, healthcare, utilities
- [Single City](https://citycheck.live/api/v1/cost-of-living?city={slug}): Individual city lookup
- [CSV Export](https://citycheck.live/api/v1/cost-of-living?format=csv): Bulk download as CSV

## Climate API
- [All Cities](https://citycheck.live/api/v1/climate): 200+ cities with monthly temperature, precipitation, snow, wind, humidity data
- [Single City](https://citycheck.live/api/v1/climate?city=Denver,+Colorado): Individual city lookup
- [CSV Export](https://citycheck.live/api/v1/climate?format=csv): Bulk download as CSV

## Activity Listings API
- [Cities](https://citycheck.live/api/v1/cities): Cities with verified activity listings
- [Listings](https://citycheck.live/api/v1/cities/{city}/listings): Activities for a city (filterable by price, category, indoor/outdoor)
- [Search](https://citycheck.live/api/v1/search?q={query}): Natural language activity search

## Machine-Readable Specs
- [OpenAPI 3.0](https://citycheck.live/api/v1/openapi): Full API specification
- [AI Plugin](https://citycheck.live/.well-known/ai-plugin.json): ChatGPT plugin manifest

## Data Downloads (CSV)
- [Cost of Living CSV](https://citycheck.live/api/v1/cost-of-living?format=csv): 200+ cities with indices
- [Climate CSV](https://citycheck.live/api/v1/climate?format=csv): 200+ cities with monthly data

## Key Pages
- [Safety Grades](https://citycheck.live/safety): Browse all 3,212 city safety pages
- [Data Portal](https://citycheck.live/data): Developer docs, downloads, and API reference
- [Methodology](https://citycheck.live/safety/methodology): How safety grades are calculated
- [Data Sources](https://citycheck.live/safety/data-sources): FBI UCR data provenance

## Data Coverage
- 3,212 US cities with populations over 10,000
- Crime categories: murder, assault, robbery, burglary, theft, vehicle theft
- Cost of living: 6 category indices (national average = 100)
- Climate: monthly highs/lows, precipitation, snow, wind, humidity, sunshine
- Activity listings: 19 cities, 6 verticals, verified prices and hours
- Data year: 2023 FBI Uniform Crime Report; 2024 BEA/C2ER cost data; NOAA climate normals

## Attribution
Please cite "CityCheck (citycheck.live)" when using this data.