Kairos AR

Kairos AR, Inc. is a Miami-based human-analytics company providing face recognition, facial detection, and emotion analysis as a REST API. The platform lets developers enroll, verify, and recognize faces against galleries they create, detect faces and facial features (age, gender, ethnicity, glasses, landmarks) in photos, and analyze emotion, demographics and attention across images and video. Requests and responses are JSON and every call is authenticated with an app_id + app_key header pair. Kairos ships official SDKs for JavaScript, PHP, Android, and .NET, publishes an Apiary-hosted API reference with a live sandbox console, and offers a free tier plus usage-based pricing and an on-premise biometric offering. The company was surfaced as a 500 Global portfolio company and is enriched here into the API Evangelist network.

Kairos AR publishes 3 APIs on the APIs.io network: Emotion Analysis API, Face Recognition API, and Galleries API. Tagged areas include Company, Face Recognition, Facial Recognition, Biometrics, and Emotion Analysis.

Kairos AR’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.8/100 thin ▬ flat Agent 21/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Face Recognition Facial Recognition BiometricsEmotion AnalysisComputer-Vision Identity Artificial Intelligence Machine-Learning Image Analysis

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 36.8/100 · thin

Contract Quality 3.1 / 23

Developer Ergonomics 13.2 / 18

Access Clarity 8.0 / 18

Operational Transparency 2.2 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/kairos-ar: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

Kairos AR Emotion Analysis API

Analyze emotion, demographics and attention in images and video.

Kairos AR Face Recognition API

Detect, enroll, verify and recognize faces in photos against galleries.

Kairos AR Galleries API

Manage galleries and the subjects/face templates enrolled in them.

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Kairos Face Recognition & Emotion Analysis API

OPEN COLLECTION

Kairos & Emotion Analysis Face Recognition API

OPEN COLLECTION

Kairos Face Recognition & Emotion Analysis Galleries API

OPEN COLLECTION

Security Posture 2

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

Kairos Ar Authentication

apiKey · 2 schemes

SECURITY

Kairos Ar Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Kairos Ar Agentic Access

13 operations · 11 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Postman

Packages

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

Changelog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: kairos-ar
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
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kairos-ar.png
name: Kairos AR
description: Kairos AR, Inc. is a Miami-based human-analytics company providing face recognition, facial detection, and emotion
  analysis as a REST API. The platform lets developers enroll, verify, and recognize faces against galleries they create,
  detect faces and facial features (age, gender, ethnicity, glasses, landmarks) in photos, and analyze emotion, demographics
  and attention across images and video. Requests and responses are JSON and every call is authenticated with an app_id +
  app_key header pair. Kairos ships official SDKs for JavaScript, PHP, Android, and .NET, publishes an Apiary-hosted API reference
  with a live sandbox console, and offers a free tier plus usage-based pricing and an on-premise biometric offering. The company
  was surfaced as a 500 Global portfolio company and is enriched here into the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/kairos-ar/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: profiled
x-tier-reason: enriched-from-public-docs
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Face Recognition
- Facial Recognition
- Biometrics
- Emotion Analysis
- Computer-Vision
- Identity
- Artificial Intelligence
- Machine-Learning
- Image Analysis
tags_raw:
- Company
- Face Recognition
- Facial Recognition
- Biometrics
- Emotion Analysis
- Computer Vision
- Identity
- Artificial Intelligence
- Machine Learning
- Image Analysis
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: kairos-ar:kairos-ar-emotion-analysis-api
  name: Kairos AR Emotion Analysis API
  description: Analyze emotion, demographics and attention in images and video.
  humanURL: https://face.kairos.com/docs/api/
  baseURL: https://api.kairos.com
  tags:
  - Emotion Analysis
  properties:
  - type: OpenAPI
    url: openapi/kairos-ar-emotion-analysis-api-openapi.yml
  - type: APIBlueprint
    url: openapi/kairos-ar-blueprint-original.apib
  - type: Authentication
    url: authentication/kairos-ar-authentication.yml
  - type: ErrorCatalog
    url: errors/kairos-ar-error-codes.yml
  - type: Conventions
    url: conventions/kairos-ar-conventions.yml
  - type: DataModel
    url: data-model/kairos-ar-data-model.yml
  - type: Conformance
    url: conformance/kairos-ar-conformance.yml
  - type: AgenticAccess
    url: agentic-access/kairos-ar-agentic-access.yml
- aid: kairos-ar:kairos-ar-face-recognition-api
  name: Kairos AR Face Recognition API
  description: Detect, enroll, verify and recognize faces in photos against galleries.
  humanURL: https://face.kairos.com/docs/api/
  baseURL: https://api.kairos.com
  tags:
  - Face Recognition
  properties:
  - type: OpenAPI
    url: openapi/kairos-ar-face-recognition-api-openapi.yml
  - type: APIBlueprint
    url: openapi/kairos-ar-blueprint-original.apib
  - type: Authentication
    url: authentication/kairos-ar-authentication.yml
  - type: ErrorCatalog
    url: errors/kairos-ar-error-codes.yml
  - type: Conventions
    url: conventions/kairos-ar-conventions.yml
  - type: DataModel
    url: data-model/kairos-ar-data-model.yml
  - type: Conformance
    url: conformance/kairos-ar-conformance.yml
  - type: AgenticAccess
    url: agentic-access/kairos-ar-agentic-access.yml
- aid: kairos-ar:kairos-ar-galleries-api
  name: Kairos AR Galleries API
  description: Manage galleries and the subjects/face templates enrolled in them.
  humanURL: https://face.kairos.com/docs/api/
  baseURL: https://api.kairos.com
  tags:
  - Galleries
  properties:
  - type: OpenAPI
    url: openapi/kairos-ar-galleries-api-openapi.yml
  - type: APIBlueprint
    url: openapi/kairos-ar-blueprint-original.apib
  - type: Authentication
    url: authentication/kairos-ar-authentication.yml
  - type: ErrorCatalog
    url: errors/kairos-ar-error-codes.yml
  - type: Conventions
    url: conventions/kairos-ar-conventions.yml
  - type: DataModel
    url: data-model/kairos-ar-data-model.yml
  - type: Conformance
    url: conformance/kairos-ar-conformance.yml
  - type: AgenticAccess
    url: agentic-access/kairos-ar-agentic-access.yml
common:
- type: Overlay
  url: overlays/kairos-ar-openapi-overlay.yaml
- type: Website
  url: https://kairos.com
- type: DeveloperPortal
  url: https://developer.kairos.com
- type: Documentation
  url: https://face.kairos.com/docs/
- type: APIReference
  url: https://face.kairos.com/docs/api/
- type: GettingStarted
  url: https://face.kairos.com/docs/getting-started-with-kairos-face-recognition
- type: Support
  url: https://www.kairos.com/support
- type: Blog
  url: https://www.kairos.com/blog
- type: GitHubOrganization
  url: https://github.com/kairosinc
- type: Pricing
  url: https://www.kairos.com/pricing
- type: SignUp
  url: https://developer.kairos.com/signup
- type: TermsOfService
  url: https://www.kairos.com/terms
- type: PrivacyPolicy
  url: https://www.kairos.com/privacy
- type: StatusPage
  url: https://status.kairos.com/
- type: ChangeLog
  url: https://face.kairos.com/docs/api/changelog
- type: Postman
  url: https://documenter.getpostman.com/view/566316/SVYnSMHo
- type: X-MCPServerCandidate
  url: mcp/kairos-ar-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/kairos-ar-llms.txt
- type: Packages
  url: packages/kairos-ar-packages.yml
- type: SDKs
  url: packages/kairos-ar-packages.yml
- type: Lifecycle
  url: lifecycle/kairos-ar-lifecycle.yml
- type: Sandbox
  url: sandbox/kairos-ar-sandbox.yml
- type: Changelog
  url: changelog/kairos-ar-changelog.yml
- type: DomainSecurity
  url: security/kairos-ar-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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