How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
Nexar

Nexar CityStream™ Live Feed API V4 API

The CityStream™ Live Feed API V4 API from Nexar — 1 operation(s) for citystream™ live feed api v4.

Documentation Provider Profile APIs.io OpenAPI GitHub

Nexar CityStream™ Live Feed API V4 API is one of 6 APIs that Nexar publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include CityStream™ Live Feed API V4. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 1 operation across 1 path, and defines 37 schemas. It is described by OpenAPI 3.2.0, at version 4.0.

Requests are made against a single base URL, https://external.getnexar.com.

1 operations 1 paths 37 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
4.0
Base URL
https://external.getnexar.com
Authentication
API Key
Contact
Nexar
License
License: Proprietary
Resource Areas
1

Authentication & Security 1

Nexar CityStream™ Live Feed API V4 API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (Bearer). By default, every request must be authenticated.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

CityStream™ Live Feed API V4 1
POST
/api/livefeed/v4/detections
Get a set of real-time detections.
CityStreamAPI_FindRealtimeDetections body → 200403500

Schemas 37

The contract defines 37 schemas that model the data the API accepts and returns. The most detailed are apiH3IndicesApiElement (32 properties), apiHexsegDetectionApiElement (14 properties), apiWZDxFeedInfo (7 properties), apiWZDxCameraCoreDetails (6 properties). Each schema is shown below with its type and property counts.

apiWZDxDataSource
object
2 properties
apiH3IndicesApiElement
object
32 properties
apiGeoJsonGeometryPoint
object
2 properties
apiWZDxFeedInfo
object
7 properties
apiPixelBoundingBoxApiElement
object
4 properties
apiDetectionEvidenceFrameApiElement
object
3 properties
apiOsmRoadTypeApiElement
string
apiRoadSurfaceApiElementSubType
string
Sub types of road surface detections
apiRoadSurfaceDetectionApiElement
object
4 properties
apiDetectionRequestParams
object
5 properties 1 required
apiDetectionTypeApiElement
object
4 properties
apiWZDxCameraCoreDetails
object
6 properties
apiGeoBoundingBoxApiElement
object
2 properties 2 required
apiHexsegDetectionApiElement
object
14 properties
H3IndexFormatApiElementFormat
string
Whether H3 hexagon ids are given in decimal or hex format
apiWZDxDetection
object
4 properties
apiRoadConditionDetectionApiElement
object
4 properties
apiGeoJsonDetectionCollection
object
2 properties 2 required
apiGeoLocationApiElement
object
3 properties
apiGeoJsonDetectionFeatureType
string
apiWZDxDetectionCollectionFeatureCollectionType
string
apiDetectionFilterApiElement
object
5 properties
apiOsmRoadSegmentApiElement
object
5 properties
apiConstructionZoneDetectionApiElement
object
5 properties
DetectionStatusApiElementStatus
string
Lifecycle status of the detection
apiHexsegDetectionPayload
object
1 property
apiGeoLocationApiElementRequest
object
2 properties 2 required
apiWZDxDetectionCollection
object
3 properties
apiRoadConditionApiElementSubType
string
Sub types of road condition detections
apiWZDxDetectionProperties
object
4 properties
apiConstructionZoneApiElementSubType
string
Sub types of construction zone detections (or ANY to include the entire type)
apiTrafficSignDetectionApiElement
object
4 properties
apiGeoJsonDetection
object
4 properties
apiWZDxDetectionFeatureType
string
apiGeoJsonGeometryPointGeometryType
string
apiTrafficSignApiElementSubType
string
Sub types of traffic sign detections (or ANY to include the entire type)
apiGeoJsonDetectionCollectionFeatureCollectionType
string

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

nexar-citystream-live-feed-api-v4-api-openapi.yml Raw ↑

Other APIs Nexar publishes across the network.

Nexar Get a collection of road signs API
AE Profile APIs.io
Nexar Get a collection of work zones API
AE Profile APIs.io
Nexar Get a specific work zone API
AE Profile APIs.io
Nexar Get the details of a specific road sign API
AE Profile APIs.io
Nexar VirtualCam API
AE Profile APIs.io
#CityStream™ Live Feed API V4
← Back to N APIs
API Details
ID
nexar:nexar-citystream-live-feed-api-v4-api
Base URL
https://external.getnexar.com
Docs
https://developer.getnexar.com/documentation
Provider
Nexar
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=nexar-citystream-live-feed-api-v4-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/nexar-citystream-live-feed-api-v4-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of Nexar CityStream™ Live Feed API V4 API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.