Know any U.S. neighborhood.
Public data, cleaned and joined into one API. Eight ratings and a written profile, plus demographics, housing, schools, crime, health, and hazard risk. For any region, state, county, zip, or address in the U.S.
Send a request.
A walkable, family-friendly neighborhood minutes from uptown Charlotte, popular with young professionals and small families.
{
"status": "success",
"data": {
"location": {
"zip": "28203",
"neighborhood": "Dilworth",
"city": "Charlotte",
"state": "NC"
},
"ratings": {
"overall": 7.8,
"walkability": 8.9,
"bikeability": 7.2,
"safety": 7.5,
"schools": 7.8,
"family_friendly": 8.1,
"population_density": 6.4,
"affordability": 5.9,
"nightlife": 6.2
},
"raw_data": {
"walkability_index": 15.4,
"violent_crime_per_100k": 412,
"population_density_per_sqmi": 4823,
"parks_within_1mi": 4
},
"ai_summary": "A walkable, family-friendly neighborhood minutes from uptown Charlotte, popular with young professionals and small families.",
"best_for": [
"young families",
"young professionals",
"walkability seekers"
],
"metadata": {
"cache_hit": false,
"processing_time_ms": 284,
"last_updated": "2026-07-01"
}
}
}What happens on every request.
Locate
A zip or geocoded address is matched to its Census tract and county.
Gather
Every source is queried in parallel, each independently cached.
Score
Raw metrics become ratings on one 0-to-10 scale, plus a climate facts block.
Cache
The full profile is stored per zip, so the next call returns in milliseconds.
Eight ratings, scored 0 to 10.
Every score publishes its formula and the raw metric it came from. Nothing is a black box.
Plain REST. No SDK.
Fourteen domains, 58 endpoints, one flat REST surface. Query a full profile, or pull demographics, housing, schools, crime, health, and hazards on their own.
[ READ THE DOCS ]/v1/states/{state}/summaryRolled-up profile for a whole state.
/v1/zips/nearbyEvery zip within a radius.
/v1/neighborhoodFull profile for one address or zip.
/v1/neighborhood/compareTwo to four locations side by side.
/v1/neighborhood/batchUp to 25 zips in one request.
/v1/crimePull one raw source on its own.
/v1/poiNearby venues by category, live from OSM.
/v1/healthCommunity health outcomes for a zip (CDC PLACES).
curl "https://atlasblock.dev/api/v1/neighborhood?zip=28203" \ -H "Authorization: Bearer $ATLASBLOCK_KEY"
curl "https://atlasblock.dev/api/v1/neighborhood/batch\
?zips[]=28203&zips[]=10001&zips[]=90210\
&fields[]=walkability&fields[]=safety"Fast enough to call on every request.
The first lookup runs the full pipeline and caches the profile. Every call after that is a memory read — a few milliseconds — so calling it never slows your app down.
Eight public sources, one clean API.
The data is free and public, but a pain to use raw — eight agencies, eight formats, eight geographies. We clean, join, and normalize all of it into one consistent API, each source still queryable on its own.
One endpoint per idea.
Every example below is one real endpoint away — no scraping, no stitching sources together.
Score every listing.
Score a whole search page in one request and tag each home with walkability and safety scores.
/v1/neighborhood/batch
Schools in context.
Pair every nearby school with the safety, walkability, and family scores of the blocks around it.
/v1/schools/nearby
Price the risk.
Pull FBI crime, FEMA hazard risk, and NOAA climate facts for any address before you price a policy.
/v1/crime · /v1/hazards
Vet any stay.
Turn a rental’s map pin into a quick read on how walkable, safe, and lively the surrounding area is.
/v1/neighborhood
Where to live?
Turn a wishlist into a ranked shortlist of neighborhoods within a radius, each ready to explore.
/v1/zips/nearby
Map the metro.
Roll up demographics, housing, and safety across every zip in a county to see where investment lags.
/v1/demographics · /v1/housingSimple, flat monthly pricing.
Free federal open data plus OpenStreetMap: EPA, FBI, NCES, Census ACS, NOAA, CDC PLACES, FEMA, and OSM. Nothing is scraped or licensed.