OpenRouteService Isochrones API
Obtain areas of reachability from given locations
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OpenAPI Specification
openapi: 3.2.0
info:
title: OpenRouteService Directions Isochrones API
description: OpenRouteService is a free, open-source geospatial API platform built on OpenStreetMap data. It provides routing directions for multiple transport modes, isochrones for reachability analysis, time-distance matrices, geocoding, elevation data, points of interest, and vehicle route optimization for logistics and humanitarian use cases.
version: v2
contact:
name: OpenRouteService Support
url: https://ask.openrouteservice.org
email: support@smartmobility.heigit.org
license:
name: GNU General Public License v3.0
url: https://github.com/GIScience/openrouteservice/blob/main/LICENSE
x-ors-docs: https://giscience.github.io/openrouteservice/
servers:
- url: https://api.openrouteservice.org
description: OpenRouteService Public API
security:
- ApiKeyAuth: []
tags:
- name: Isochrones
description: Obtain areas of reachability from given locations
paths:
/v2/isochrones/{profile}:
post:
tags:
- Isochrones
summary: Isochrones Service
description: The Isochrone Service supports time and distance analyses for one single or multiple locations. You may also specify the travel mode and a maximum range value. This service responses with polygon or point geometries, depending on your request.
operationId: getIsochrones
parameters:
- $ref: '#/components/parameters/profile'
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/IsochronesRequest'
responses:
'200':
description: Successfully computed isochrones
content:
application/geo+json:
schema:
$ref: '#/components/schemas/GeoJSONIsochronesResponse'
'400':
$ref: '#/components/responses/BadRequest'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
$ref: '#/components/responses/Forbidden'
'404':
$ref: '#/components/responses/NotFound'
'500':
$ref: '#/components/responses/InternalServerError'
components:
schemas:
IsochronesRequest:
type: object
required:
- locations
- range
properties:
locations:
type: array
description: Array of center coordinates for isochrone computation as [longitude, latitude] pairs. Maximum 5 locations per request.
maxItems: 5
items:
type: array
items:
type: number
format: double
minItems: 2
maxItems: 2
example:
- - 8.681495
- 49.41461
range:
type: array
description: Array of maximum travel range values. For time-based isochrones in seconds, for distance-based in meters. Maximum 10 values.
maxItems: 10
items:
type: number
format: double
example:
- 300
- 600
range_type:
type: string
description: The type of range to compute isochrones for
enum:
- time
- distance
default: time
interval:
type: number
description: Interval for isochrone polygon rings. Creates concentric polygons at each interval within the maximum range.
format: double
units:
type: string
description: Units for range values when range_type is distance
enum:
- m
- km
- mi
default: m
area_units:
type: string
description: Units for area computation in the response
enum:
- m
- km
- mi
default: m
attributes:
type: array
description: Additional attributes to include in the response
items:
type: string
enum:
- area
- reachfactor
- total_pop
intersections:
type: boolean
description: Compute intersections between isochrones
default: false
smoothing:
type: number
description: Smoothing factor for isochrone polygons (0-1)
format: double
minimum: 0
maximum: 1
avoid_features:
type: array
items:
type: string
enum:
- highways
- tollways
- ferries
- fords
avoid_borders:
type: string
enum:
- all
- controlled
- none
avoid_polygons:
type: object
description: GeoJSON Polygon or MultiPolygon to avoid
id:
type: string
description: Arbitrary identifier for tracking requests
ErrorResponse:
type: object
properties:
error:
type: object
properties:
code:
type: integer
description: Error code
message:
type: string
description: Human-readable error message
info:
type: object
properties:
engine:
$ref: '#/components/schemas/EngineInfo'
attribution:
type: string
timestamp:
type: integer
format: int64
GeoJSONIsochronesResponse:
type: object
properties:
type:
type: string
enum:
- FeatureCollection
features:
type: array
items:
type: object
properties:
type:
type: string
enum:
- Feature
geometry:
type: object
properties:
type:
type: string
enum:
- Polygon
coordinates:
type: array
items:
type: array
items:
type: array
items:
type: number
properties:
type: object
properties:
group_index:
type: integer
value:
type: number
center:
type: array
items:
type: number
area:
type: number
reachfactor:
type: number
total_pop:
type: integer
bbox:
type: array
items:
type: number
metadata:
type: object
EngineInfo:
type: object
properties:
version:
type: string
description: ORS engine version
build_date:
type: string
format: date-time
description: Build date of the ORS engine
parameters:
profile:
name: profile
in: path
description: Specifies the transport mode profile for routing
required: true
schema:
type: string
enum:
- driving-car
- driving-hgv
- cycling-regular
- cycling-road
- cycling-mountain
- cycling-electric
- foot-walking
- foot-hiking
- wheelchair
example: driving-car
responses:
NotFound:
description: Not found - route or resource could not be found
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Forbidden:
description: Forbidden - API key does not have permission for this operation
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
InternalServerError:
description: Internal server error
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
Unauthorized:
description: Unauthorized - missing or invalid API key
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
BadRequest:
description: Bad request - invalid parameters or request body
content:
application/json:
schema:
$ref: '#/components/schemas/ErrorResponse'
securitySchemes:
ApiKeyAuth:
type: apiKey
in: header
name: Authorization
description: API key obtained from https://openrouteservice.org