Nexar

Nexar is a physical-AI infrastructure company that operates one of the largest real-world video driving datasets — over 1.2 billion miles of driving captured each year by more than 350,000 connected dashcams — and turns it into training data, collision-prediction models and real-time road intelligence for autonomous-vehicle, ADAS, mapping and smart-city programs. Its developer-facing surface is the CityStream™ family of REST APIs, published as four OpenAPI 3.0.1 contracts on the Nexar Developers Portal: VirtualCam (anonymized road frames), Live Feed (real-time detections), Work Zones (curated construction-zone detections, served as WZDx and GeoJSON) and Road Inventory (curated traffic-sign and road-asset detections). All four run on a single gRPC-gateway backed host and are authorized with a bearer access token minted through Nexar's Okta authorization server. Nexar also publishes the open-source BADAS collision-prediction model on PyPI and the `nap` platform CLI through its own Homebrew tap.

Nexar publishes 6 APIs on the APIs.io network, including CityStream™ Live Feed API V4 API, Get a collection of road signs API, Get a collection of work zones API, and 3 more. Tagged areas include Company, Mapping, Geospatial, Transportation, and Computer-Vision.

Nexar’s developer surface includes documentation, API reference, signup flow, support, engineering blog, authentication, CLI, and 30 more developer resources.

🌐 Visit website 📡 Source on GitHub
36.2/100 thin ▬ flat Agent 44/100 agent ready saas Full breakdown ↓
scored 2026-09-01 · rubric v0.17.2
4 APIs 1 MCP Servers
CompanyMappingGeospatialTransportationComputer-VisionAutonomous VehiclesSmart CitiesImageryRoad DataMachine-Learning

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-01 · rubric v0.17.2
Composite quality — 36.2/100 · thin
Contract Quality 14.4 / 25
Developer Ergonomics 5.6 / 20
Access Clarity 5.5 / 20
Operational Transparency 2.1 / 13
Contract Governance 0.5 / 12
Discoverability 8.2 / 10
Agent readiness — 44/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/nexar: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

Nexar Get a collection of road signs API

The Get a collection of road signs API from Nexar — 1 operation(s) for get a collection of road signs.

Nexar Get a collection of work zones API

The Get a collection of work zones API from Nexar — 1 operation(s) for get a collection of work zones.

Nexar Get a specific work zone API

The Get a specific work zone API from Nexar — 1 operation(s) for get a specific work zone.

Nexar Get the details of a specific road sign API

The Get the details of a specific road sign API from Nexar — 1 operation(s) for get the details of a specific road sign.

Nexar VirtualCam API

The VirtualCam API API from Nexar — 3 operation(s) for virtualcam api.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Nexar MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Nexar Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nexar Rate Limits

0 limits

RATE LIMITS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Nexar Authentication

apiKey · 1 scheme

SECURITY

Nexar Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Nexar Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Nexar Scopes

4 scopes · authorizationCode

4 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Nexar Agentic Access

8 operations · 8 acting

8 operations · 8 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 SignUp
SignUp
 Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 WellKnown
WellKnown
 LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 ToolCrosswalk
ToolCrosswalk
 Packages
Packages
 CLI
CLI

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 SecurityTxt
SecurityTxt
 Authentication
Authentication
 OAuthScopes
OAuthScopes
 DomainSecurity
DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support
Support
 Deprecation
Deprecation
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 4

Properties that don't map to a standard resource type

Overlay
Overlay
 Overlay
Overlay
 Overlay
Overlay
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: nexar
name: Nexar
description: 'Nexar is a physical-AI infrastructure company that operates one of the largest real-world video driving datasets
  — over 1.2 billion miles of driving captured each year by more than 350,000 connected dashcams — and turns it into training
  data, collision-prediction models and real-time road intelligence for autonomous-vehicle, ADAS, mapping and smart-city programs.
  Its developer-facing surface is the CityStream™ family of REST APIs, published as four OpenAPI 3.0.1 contracts on the Nexar
  Developers Portal: VirtualCam (anonymized road frames), Live Feed (real-time detections), Work Zones (curated construction-zone
  detections, served as WZDx and GeoJSON) and Road Inventory (curated traffic-sign and road-asset detections). All four run
  on a single gRPC-gateway backed host and are authorized with a bearer access token minted through Nexar''s Okta authorization
  server. Nexar also publishes the open-source BADAS collision-prediction model on PyPI and the `nap` platform CLI through
  its own Homebrew tap.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
image: https://cdn.prod.website-files.com/6714bce7188a12cb895149f5/68f0ac403e8da1fec926cec2_social%20sharing.png
url: https://raw.githubusercontent.com/api-evangelist/nexar/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Mapping
- Geospatial
- Transportation
- Computer-Vision
- Autonomous Vehicles
- Smart Cities
- Imagery
- Road Data
- Machine-Learning
tags_raw:
- Company
- Mapping
- Geospatial
- Transportation
- Computer Vision
- Autonomous Vehicles
- Smart Cities
- Imagery
- Road Data
- Machine Learning
apis:
- aid: nexar:nexar-citystream-live-feed-api-v4-api
  name: Nexar CityStream™ Live Feed API V4 API
  description: The CityStream™ Live Feed API V4 API from Nexar — 1 operation(s) for citystream™ live feed api v4.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags:
  - CityStream™ Live Feed API V4
  properties:
  - type: OpenAPI
    url: openapi/nexar-citystream-live-feed-api-v4-api-openapi.yml
- aid: nexar:nexar-get-a-collection-of-road-signs-api
  name: Nexar Get a collection of road signs API
  description: The Get a collection of road signs API from Nexar — 1 operation(s) for get a collection of road signs.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags:
  - Get a collection of road signs
  properties:
  - type: OpenAPI
    url: openapi/nexar-get-a-collection-of-road-signs-api-openapi.yml
- aid: nexar:nexar-get-a-collection-of-work-zones-api
  name: Nexar Get a collection of work zones API
  description: The Get a collection of work zones API from Nexar — 1 operation(s) for get a collection of work zones.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags:
  - Get a collection of work zones
  properties:
  - type: OpenAPI
    url: openapi/nexar-get-a-collection-of-work-zones-api-openapi.yml
- aid: nexar:nexar-get-a-specific-work-zone-api
  name: Nexar Get a specific work zone API
  description: The Get a specific work zone API from Nexar — 1 operation(s) for get a specific work zone.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags:
  - Get a specific work zone
  properties:
  - type: OpenAPI
    url: openapi/nexar-get-a-specific-work-zone-api-openapi.yml
- aid: nexar:nexar-get-the-details-of-a-specific-road-sign-api
  name: Nexar Get the details of a specific road sign API
  description: The Get the details of a specific road sign API from Nexar — 1 operation(s) for get the details of a specific
    road sign.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags: []
  tags_raw:
  - Get the details of a specific road sign
  properties:
  - type: OpenAPI
    url: openapi/nexar-get-the-details-of-a-specific-road-sign-api-openapi.yml
- aid: nexar:nexar-virtualcam-api-api
  name: Nexar VirtualCam API
  description: The VirtualCam API API from Nexar — 3 operation(s) for virtualcam api.
  humanURL: https://developer.getnexar.com/documentation
  baseURL: https://external.getnexar.com
  tags:
  - VirtualCam API
  properties:
  - type: OpenAPI
    url: openapi/nexar-virtualcam-api-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/nexar-virtualcam-overlay.yaml
- type: Overlay
  url: overlays/nexar-livefeed-overlay.yaml
- type: Overlay
  url: overlays/nexar-workzones-overlay.yaml
- type: Overlay
  url: overlays/nexar-roadinventory-overlay.yaml
- type: AgenticAccess
  url: agentic-access/nexar-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/nexar-vulnerability-disclosure.yml
- type: Website
  url: https://www.nexar-ai.com/
- type: DeveloperPortal
  url: https://developer.getnexar.com/
- type: Documentation
  url: https://developer.getnexar.com/documentation
- type: APIReference
  url: https://developer.getnexar.com/documentation
- type: SignUp
  url: https://developer.getnexar.com/signup
- type: Login
  url: https://developer.getnexar.com/login
- type: Support
  url: https://help.getnexar.com/
- type: Blog
  url: https://www.nexar-ai.com/blog
- type: GitHubOrganization
  url: https://github.com/getnexar
- type: TermsOfService
  url: https://www.nexar-ai.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://www.nexar-ai.com/legal/privacy-policy
- type: Security
  url: https://www.getnexar.com/.well-known/security.txt
- type: SecurityTxt
  url: well-known/nexar-security.txt
- type: WellKnown
  url: well-known/nexar-well-known.yml
- type: LLMsTxt
  url: llms/nexar-llms.txt
- type: MCPServer
  url: mcp/nexar-mcp.yml
- type: ToolCrosswalk
  url: mcp/nexar-tool-crosswalk.yml
- type: Authentication
  url: authentication/nexar-authentication.yml
- type: OAuthScopes
  url: scopes/nexar-scopes.yml
- type: Conventions
  url: conventions/nexar-conventions.yml
- type: ErrorCatalog
  url: errors/nexar-problem-types.yml
- type: Lifecycle
  url: lifecycle/nexar-lifecycle.yml
- type: Deprecation
  url: lifecycle/nexar-lifecycle.yml
- type: Conformance
  url: conformance/nexar-conformance.yml
- type: DataModel
  url: data-model/nexar-data-model.yml
- type: Packages
  url: packages/nexar-packages.yml
- type: CLI
  url: cli/nexar-cli.yml
- type: Plans
  url: plans/nexar-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nexar-rate-limits.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/nexar-domain-security.yml
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 36
  pass: local-v1

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