Isochrone API
The Isochrone API returns the area of reachability from a given geographic point within a specified distance (in kilometers). It’s ideal for logistics, emergency planning, service area mapping, and location intelligence tools.
🔑 Authentication
- All requests must include your API key.
- Header Example:
Authorization: X-Authorization-Token(Get your token HERE)
🌐 Endpoint
- GET
/api/v1/isochrone - Base URL:
https://api.yourdomain.com/api/v1/isochrone
📥 Request Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| latitude | Float | Yes | Latitude of the central point |
| longitude | Float | Yes | Longitude of the central point |
| distance_km | Float | Yes | Distance (radius) in kilometers |
📤 Sample Request
curl --location 'https://apihub.latlong.ai/v4/isochrone.json?distance_limit=1&latitude=12.9149&longitude=77.52068' 📦 Sample Response
{
"code": 1001,
"status": "success",
"data": {
"geom": {
"type": "Feature",
"geometry": {
"coordinates": [
[
[
77.52779240000001,
12.914248
],
[
77.52706415,
12.9146339
],
[
77.52722105000001,
12.9147411
],
[
77.52720765000001,
12.914946350000001
],
[
77.527005,
12.915342500000001
],
[
77.52697815,
12.91547375
],
[
77.5269912,
12.91556465
],
[
77.5270145,
12.915741950000001
],
[
77.52735775,
12.91610915
],
[
77.52745035000001,
12.916469849999999
],
[
77.5274665,
12.9164821
],
[
77.5273615,
12.9168345
],
[
77.5274257,
12.9169787
],
[
77.52732904999999,
12.91718655
],
[
77.5269261,
12.91732725
],
[
77.5265378,
12.917404099999999
],
[
77.52638495,
12.9172823
],
[
77.52613975,
12.917096149999999
],
[
77.52597879999999,
12.9171511
],
[
77.52584215,
12.91720835
],
[
77.52570465,
12.9172656
],
[
77.52557245,
12.91698895
],
[
77.5254896,
12.916773150000001
],
[
77.52560945,
12.916573849999999
],
[
77.5257634,
12.91654525
],
[
77.52590004999999,
12.916488000000001
],
[
77.52593255,
12.9161842
],
[
77.5259078,
12.9159868
],
[
77.52575385,
12.9160154
],
[
77.5257331,
12.91585385
],
[
77.52558995000001,
12.915658
],
[
77.52509900000001,
12.915959399999998
],
[
77.52503540000001,
12.91616395
],
[
77.52513695,
12.9163253
],
[
77.5250171,
12.916524599999999
],
[
77.52518989999999,
12.91689875
],
[
77.52527275,
12.91711455
],
[
77.52540495,
12.9173912
],
[
77.5254242,
12.91777285
],
[
77.52556625,
12.917773700000001
],
[
77.5256359,
12.9177718
],
[
77.5256734,
12.917875
],
[
77.5256867,
12.91789445
],
[
77.52570995,
12.9179911
],
[
77.52588420000001,
12.91810985
],
[
77.5258356,
12.91833665
],
[
77.52560425,
12.918687949999999
],
[
77.52522504999999,
12.9188562
],
[
77.52501534999999,
12.91886325
],
[
77.52483054999999,
12.9186579
],
[
77.52464330000001,
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],
[
77.52453489999999,
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],
[
77.5244246,
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],
[
77.5243122,
12.91888505
],
[
77.52432125,
12.9190837
],
[
77.5242977,
12.91922525
],
[
77.52409065,
12.919368299999999
],
[
77.524079,
12.919423349999999
],
[
77.5240091,
12.9195715
],
[
77.5237657,
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],
[
77.52375235,
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],
[
77.5236584,
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],
[
77.52354310000001,
12.91988375
],
[
77.52356175,
12.9201008
],
[
77.52358445,
12.920352900000001
],
[
77.5233671,
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],
[
77.5230977,
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],
[
77.52316435,
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],
[
77.52302990000001,
12.921063
],
[
77.52289565000001,
12.9210739
],
[
77.5223075,
12.9212103
],
[
77.52233675,
12.921475050000002
],
[
77.52201455,
12.9218781
],
[
77.52173880000001,
12.92188475
],
[
77.5213707,
12.9220973
],
[
77.5211655,
12.9222225
],
[
77.52095170000001,
12.92235005
],
[
77.5207618,
12.92252535
],
[
77.52064085,
12.9225812
],
[
77.52034549999999,
12.922549799999999
],
[
77.52017125,
12.922563799999999
],
[
77.51999645000001,
12.9226326
],
[
77.51977925,
12.92265575
],
[
77.51953815,
12.9226773
],
[
77.51932785,
12.92270095
],
[
77.5190342,
12.92256585
],
[
77.51882520000001,
12.92214575
],
[
77.5186042,
12.922160550000001
],
[
77.5183844,
12.922187300000001
],
[
77.51807875,
12.92200215
],
[
77.5180637,
12.921838600000001
],
[
77.51776315000001,
12.92169595
],
[
77.51733245,
12.92125545
],
[
77.51710800000001,
12.92082105
],
[
77.51691075,
12.9208399
],
[
77.51673475,
12.9209077
],
[
77.51643515,
12.92067535
],
[
77.51616225000001,
12.92045415
],
[
77.51615205,
12.920232599999999
],
[
77.5163294,
12.920113449999999
],
[
77.5165685,
12.92008495
],
[
77.51679725,
12.919951
],
[
77.51700654999999,
12.91994355
],
[
77.5170287,
12.91953105
],
[
77.5170779,
12.91914085
],
[
77.5170709,
12.91908575
],
[
77.51699024999999,
12.9189069
],
[
77.51686605,
12.9187558
],
[
77.516476,
12.9187108
],
[
77.51629975,
12.9188468
],
[
77.51601915,
12.918736249999998
],
[
77.51593985,
12.9185531
],
[
77.5157515,
12.91845545
],
[
77.5155854,
12.9185281
],
[
77.51535305,
12.918530650000001
],
[
77.51492235,
12.91818455
],
[
77.51457925,
12.91785855
],
[
77.5142661,
12.91792965
],
[
77.51408244999999,
12.91797355
],
[
77.5136468,
12.91783515
],
[
77.513616,
12.91766255
],
[
77.51341735,
12.91736205
],
[
77.51311634999999,
12.91735775
],
[
77.51304465,
12.9171441
],
[
77.51304164999999,
12.917088549999999
],
[
77.51303425,
12.91657505
],
[
77.51300795,
12.91623135
],
[
77.51300205,
12.91596575
],
[
77.51292495,
12.915370549999999
],
[
77.5129233,
12.915317049999999
],
[
77.513428,
12.9153002
],
[
77.5134635,
12.915165550000001
],
[
77.5134673,
12.914920200000001
],
[
77.5134723,
12.91478395
],
[
77.51348885,
12.9146281
],
[
77.51350255,
12.91450575
],
[
77.51351445,
12.9144078
],
[
77.51360084999999,
12.91438185
],
[
77.51356325,
12.9140797
],
[
77.51315435000001,
12.9141697
],
[
77.5136343,
12.91359795
],
[
77.51365605000001,
12.9136738
],
[
77.5139664,
12.913796099999999
],
[
77.5139873,
12.91386505
],
[
77.51402490000001,
12.9141672
],
[
77.51457865,
12.914410499999999
],
[
77.51521415,
12.914031900000001
],
[
77.51451035,
12.913638800000001
],
[
77.51448945,
12.91356985
],
[
77.51426715,
12.91361465
],
[
77.5139568,
12.913492349999999
],
[
77.5139671,
12.913409
],
[
77.5140074,
12.91325045
],
[
77.51392735,
12.9130553
],
[
77.5139117,
12.91263395
],
[
77.51387535,
12.912465000000001
],
[
77.5140968,
12.91244695
],
[
77.51495675000001,
12.912470200000001
],
[
77.51517295,
12.912651199999999
],
[
77.51541455,
12.9126419
],
[
77.51563485,
12.9124129
],
[
77.5155753,
12.91212965
],
[
77.51556575000001,
12.911895000000001
],
[
77.5156229,
12.9112305
],
[
77.51561635,
12.9110684
],
[
77.51578385,
12.9110865
],
[
77.51600195,
12.9109348
],
[
77.51598200000001,
12.91062385
],
[
77.51619554999999,
12.9104403
],
[
77.51636895,
12.91042565
],
[
77.51655255,
12.9105569
],
[
77.51645655,
12.91097185
],
[
77.51646375,
12.911112450000001
],
[
77.51661394999999,
12.91128755
],
[
77.5168205,
12.911068
],
[
77.51687725,
12.9109577
],
[
77.51697325,
12.910542750000001
],
[
77.51720505,
12.91054485
],
[
77.51726635,
12.910546100000001
],
[
77.51738585,
12.9105497
],
[
77.51784620000001,
12.9100432
],
[
77.5181955,
12.90944195
],
[
77.5182031,
12.90921165
],
[
77.51839365000001,
12.9091253
],
[
77.51819965,
12.9086778
],
[
77.51820045,
12.90859645
],
[
77.51820294999999,
12.90838055
],
[
77.51842585,
12.90817485
],
[
77.51877195,
12.90789575
],
[
77.51890255,
12.9079686
],
[
77.51906944999999,
12.90797095
],
[
77.5192514,
12.9077921
],
[
77.51925245,
12.90759975
],
[
77.51944255000001,
12.9072864
],
[
77.5196004,
12.9072865
],
[
77.52010365,
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],
[
77.5200194,
12.9069528
],
[
77.51987405,
12.906701250000001
],
[
77.5203377,
12.90636965
],
[
77.52042245,
12.906380949999999
],
[
77.52065915,
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],
[
77.52107910000001,
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],
[
77.5212568,
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],
[
77.52134805,
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],
[
77.521614,
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],
[
77.52179774999999,
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],
[
77.5219305,
12.9059548
],
[
77.52190089999999,
12.9067337
],
[
77.52183185,
12.9067248
],
[
77.5219289,
12.9069465
],
[
77.5216527,
12.907339799999999
],
[
77.52150574999999,
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],
[
77.5213929,
12.907310500000001
],
[
77.52128295,
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],
[
77.52127619999999,
12.90799005
],
[
77.5216527,
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],
[
77.5218292,
12.90801395
],
[
77.52217445,
12.90762955
],
[
77.5223336,
12.90763195
],
[
77.5228713,
12.908110050000001
],
[
77.52285885,
12.9082618
],
[
77.5229599,
12.90852955
],
[
77.52323100000001,
12.908487399999999
],
[
77.52329950000001,
12.908627
],
[
77.5234116,
12.9087351
],
[
77.52369780000001,
12.9090341
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[
77.52387465,
12.9091558
],
[
77.52398135,
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],
[
77.52426285,
12.909076299999999
],
[
77.52429225,
12.9093162
],
[
77.52463275,
12.9095598
],
[
77.524654,
12.909802899999999
],
[
77.52466575,
12.910015099999999
],
[
77.52484165,
12.910217150000001
],
[
77.52546670000001,
12.910249499999999
],
[
77.52547179999999,
12.910085500000001
],
[
77.52571664999999,
12.910103849999999
],
[
77.52593135000001,
12.91032625
],
[
77.52592625,
12.910490249999999
],
[
77.52592075000001,
12.910681449999998
],
[
77.52591745000001,
12.9108866
],
[
77.52613825,
12.910899149999999
],
[
77.52682745,
12.91088205
],
[
77.52687225,
12.91106815
],
[
77.52686589999999,
12.9112893
],
[
77.52676905,
12.911750999999999
],
[
77.52699104999999,
12.912142450000001
],
[
77.5271587,
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],
[
77.5272932,
12.912709450000001
],
[
77.52688359999999,
12.913257300000001
],
[
77.52778895,
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],
[
77.5278315,
12.913052050000001
],
[
77.52796295,
12.9128219
],
[
77.52810485,
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],
[
77.528468,
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],
[
77.528941,
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],
[
77.5292601,
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],
[
77.5294269,
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],
[
77.5296141,
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],
[
77.5293988,
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],
[
77.52914805,
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],
[
77.52898125,
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],
[
77.5288961,
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],
[
77.52881375000001,
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],
[
77.5285958,
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],
[
77.528605,
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],
[
77.52834755,
12.914971900000001
],
[
77.52807605,
12.91466805
],
[
77.52806685,
12.91460565
],
[
77.52791925,
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],
[
77.5277744,
12.9144731
],
[
77.52779240000001,
12.914248
]
]
],
"type": "Polygon"
}
}
}
} 📊 Response Fields
| Field | Description |
|---|---|
| center | The original input coordinates |
| radius_km | The distance used to calculate reachability |
| isochrone_area | Polygon coordinates forming the isochrone boundary |
| message | Summary of the operation result |
🧠 Features
- 🏥
Define emergency response zones for hospitals or fire stations
- 📦
Service area mapping for last-mile deliveries
- 🧭
️ Show reachable areas from a store, office, or any location
- 🗺️
Visual analytics for real estate or urban planning tools
⚠️ Errors
| Status Code | Message | Description |
|---|---|---|
| 400 | Missing required parameters | Incorrect lat/lon or distance format |
| 401 | Unauthorized | API key missing or invalid |
| 500 | Internal Server Error | Internal issue while generating isochrone |
