Look up any US public library by address or coordinates. Get hours, services, collections, programs, and finance data — built on the federal IMLS Public Libraries Survey. No scraping. No 50-state portal hunting.
One account works on all three civic APIs:districtapi.devlibraryapi.devpublicsafetyapi.dev
curl "https://api.libraryapi.dev/v1/outlets?address=14901+Dale+Evans+Pkwy+Apple+Valley+CA&radius_miles=10" \ -H "X-API-Key: lk_live_your_api_key"
{
"data": [
{
"outletId": "CA0109-004",
"name": "Newton T. Bass Apple Valley Branch Library",
"outletType": "branch",
"distanceMiles": 0.14,
"hours": { "annualHours": 1520, "weeksOpen": 52 },
"service": { "squareFootage": 19412 },
"parentSystem": {
"fscsId": "CA0109",
"name": "San Bernardino County Library"
}
}
],
"meta": { "creditsUsed": 1, "creditsRemaining": 499 }
}Create an account in under a minute. No credit card required. 500 requests/month free, forever.
Sign up free →Send any US street address or lat/lng. We handle geocoding and spatial lookup against all 17,586 library outlets nationwide.
Hours, services, collections, programs, finance figures, and the parent library system — all in one clean JSON response.
Read the docs →Pass any US street address and get back the public library outlets closest to it. Spatial lookup against all 17,586 IMLS-surveyed outlets with distance in miles.
Hours open per year, weeks open, square footage, service programs, internet terminals, and meeting room availability — everything the IMLS collects, in one response.
Physical books, audio materials, video materials, e-books, and e-audio counts for every outlet and system. Track collection size over time as IMLS data updates.
Total revenue, operating expenditures, salaries, capital outlay, and program counts per library system. Build funding comparisons, per-capita analysis, and grant tools.
Aggregate counts by state or library system: total outlets, hours, visits, circulation, and budget. One call returns a full state-level picture.
All library systems and outlets are keyed by FSCS IDs — the same identifiers used by every federal library dataset, making cross-referencing straightforward.
Start free. No credit card required. Upgrade when you need more.
All endpoints on all tiers. Monthly limit resets on the 1st.
Bundle libraryapi.dev with districtapi.dev and publicsafetyapi.dev. From $49/mo across all three.