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 API contracts indexed 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.

The Kairos AR catalog on APIs.io includes 1 Spectral governance ruleset.

Kairos AR’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

48.7/100 developing ▬ flat Agent 23/100 agent aware Front door AI 5/6 prominent Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 4 Agent Skills

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

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 48.7/100 · developing

Contract Quality 2.6 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 12.6 / 15

Operational Transparency 3.3 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the AI & Biometrics regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 13.6 — up to +21.6 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Operational Transparency scores 34.2 — up to +8.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/kairos-ar/apis.yml: open an issue on github.com/api-evangelist/kairos-ar to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Biometrics Testing (biometric recognition vendors, identity verification depth)	undeclared	-	-	1
ONVIF Video Analytics (video surveillance, edge cameras, computer vision)	undeclared	-	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 3

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

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

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Detect faces and facial attributes in a photo

AGENT SKILL

Analyze emotion and attention in media

AGENT SKILL

Enroll faces and recognize them against a gallery

AGENT SKILL

Verify a photo against a known subject

AGENT SKILL

Kairos AR API pricing

Prices published by Kairos AR, read 2026-10-07 from www.kairos.com/pricing.

Plan	Price
Identity Verification Free	$0 Includes: 100 API transactions
Identity Verification Pro Platform	$49/month Includes: Includes 100 API Calls
Biometric Face Recognition	1,000 Free API Calls Includes: 1,000 Free API Calls
On-Prem	Contact us for pricing

Plan details, limits and sources →

Billed by: api call · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Kairos Ar Plans Pricing

4 plans

PLANS

Kairos Ar Price Estimates

0 plans

PLANS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Kairos AR

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Kairos Ar Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Kairos AR API Rules

61 rules · 59 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Kairos Ar Openapi Overlay

4 actions · update · kairos-ar-openapi.yml

DERIVED

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 · 10 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 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  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
- Computer-Vision
- Machine-Learning
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: Plans
  url: plans/kairos-ar-plans-pricing.yml
- 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

Kairos AR API — frequently asked questions

Does Kairos AR have an API?

Yes. APIs.io lists 3 APIs from Kairos AR, including Kairos AR Emotion Analysis API, Kairos AR Face Recognition API and Kairos AR Galleries API.

Is there an OpenAPI specification for the Kairos AR API?

Yes. APIs.io indexes 3 OpenAPI specifications for Kairos AR, each linked for download from this page.

How do I authenticate with the Kairos AR API?

Kairos AR uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Kairos Ar Authentication.

How much does the Kairos AR API cost?

Kairos AR publishes its prices; its Identity Verification Free plan is $0 as of 2026-10-07. APIs.io lists 4 pricing plans for Kairos AR, with each plan's price, limits and inclusions under Pricing on this page.

Is the Kairos AR API ready for AI agents?

Kairos AR has a Kin Score of 48.7 out of 100 (developing) and an Agent Readiness score of 22.7 (agent-aware), scored by API Evangelist on 2026-11-06.

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