Arkose Labs

Arkose Labs is a bot management and account-security platform (the Arkose Bot Manager / Titan platform) that protects login, registration, and other high-value user flows from bots, fraud, and abuse. It combines a client-side detection engine and adaptive Enforcement Challenge with a server-side Verify API that returns a risk assessment (risk band, score, telltales, IP / device / email intelligence, and agent trust) for every session, plus a lightweight server-side Edge API for surfaces where client JavaScript cannot run. The developer surface includes the Verify API v4, Edge API, Truth Data and Retroactive Attack Insights APIs, mobile SDKs (Android, iOS, React Native), CDN integrations (Akamai, Cloudflare, Fastly), and a public status page.

Arkose Labs publishes 3 API contracts indexed on the APIs.io network: Edge API, Schema API, and Verify API. Tagged areas include Company, Enterprise, Security, Bot Management, and Fraud Prevention.

The Arkose Labs catalog on APIs.io includes 1 Spectral governance ruleset.

Arkose Labs’ developer surface includes documentation, API reference, getting-started guide, engineering blog, support, authentication, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.9/100 thin ▬ flat Agent 18/100 agent aware saas Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

2 published contracts

Company Enterprise Security Bot Management Fraud Prevention Authentication Account Security Bot Detection Risk Scoring CAPTCHA

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 29.9/100 · thin

Contract Quality 2.3 / 19

Developer Ergonomics 5.7 / 15

Access Clarity 3.2 / 15

Operational Transparency 3.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 4.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 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 0 / 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 Horizontal (data, software, accessibility, platform) 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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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

10 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 12.2 — up to +22.0 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Developer Ergonomics scores 38.1 — up to +12.4 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/arkose-labs/apis.yml: open an issue on github.com/api-evangelist/arkose-labs 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
Cloud Security Attestation and Secure-by-Design	standard	36.4	-	-

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.

Arkose Labs Edge API

Edge risk assessment

Arkose Labs Schema API

Machine-readable request/response schemas

Arkose Labs Verify API

Session verification

Open Collections 3

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

Arkose Labs Edge API

OPEN COLLECTION

Arkose Labs Edge Schema API

OPEN COLLECTION

Arkose Labs Edge Verify API

OPEN COLLECTION

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Arkose Labs API Rules

46 rules · 44 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.

Arkose Labs Verify Overlay

3 actions · update · arkose-labs-verify-openapi.yml

DERIVED

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Arkose Labs Verify Request

4 properties

JSON SCHEMA

Arkose Labs Verify Response

0 properties

JSON SCHEMA

Security Posture 3

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

Arkose Labs Authentication

apiKey · 2 schemes

SECURITY

Arkose Labs Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Arkose Labs Vulnerability Disclosure

Hackerone · contact published

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

ErrorCatalog

Conventions

Conformance

DataModel

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Security

Security

Authentication

Authentication

VulnerabilityDisclosure

VulnerabilityDisclosure

Operate 4

Status, limits, changes, and where to get help

Support

HelpCenter

StatusPage

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

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: arkose-labs
name: Arkose Labs
description: Arkose Labs is a bot management and account-security platform (the Arkose Bot Manager / Titan platform) that
  protects login, registration, and other high-value user flows from bots, fraud, and abuse. It combines a client-side detection
  engine and adaptive Enforcement Challenge with a server-side Verify API that returns a risk assessment (risk band, score,
  telltales, IP / device / email intelligence, and agent trust) for every session, plus a lightweight server-side Edge API
  for surfaces where client JavaScript cannot run. The developer surface includes the Verify API v4, Edge API, Truth Data
  and Retroactive Attack Insights APIs, mobile SDKs (Android, iOS, React Native), CDN integrations (Akamai, Cloudflare, Fastly),
  and a public status page.
url: https://raw.githubusercontent.com/api-evangelist/arkose-labs/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- softbank-vision-fund
x-tier: profiled
x-tier-reason: enriched-from-developer-docs
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
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://www.arkoselabs.com/wp-content/uploads/2023/03/arkose-labs-logo.svg
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-19
tags:
- Company
- Enterprise
- Security
- Bot Management
- Fraud Prevention
- Authentication
- Account Security
- Bot Detection
- Risk Scoring
- CAPTCHA
apis:
- aid: arkose-labs:arkose-labs-edge-api
  name: Arkose Labs Edge API
  description: Edge risk assessment
  humanURL: https://developer.arkoselabs.com/docs/verify-api-v4
  baseURL: https://verify-api.arkoselabs.com
  tags:
  - Edge
  properties:
  - type: OpenAPI
    url: openapi/arkose-labs-edge-api-openapi.yml
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-request.json
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-response.json
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/calling-verify-v4-api
  - type: APIReference
    url: https://developer.arkoselabs.com/docs/verify-api-v4-response-fields
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/edge-api-request-parameters
- aid: arkose-labs:arkose-labs-schema-api
  name: Arkose Labs Schema API
  description: Machine-readable request/response schemas
  humanURL: https://developer.arkoselabs.com/docs/verify-api-v4
  baseURL: https://verify-api.arkoselabs.com
  tags:
  - Schema
  properties:
  - type: OpenAPI
    url: openapi/arkose-labs-schema-api-openapi.yml
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-request.json
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-response.json
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/calling-verify-v4-api
  - type: APIReference
    url: https://developer.arkoselabs.com/docs/verify-api-v4-response-fields
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/edge-api-request-parameters
- aid: arkose-labs:arkose-labs-verify-api
  name: Arkose Labs Verify API
  description: Session verification
  humanURL: https://developer.arkoselabs.com/docs/verify-api-v4
  baseURL: https://verify-api.arkoselabs.com
  tags:
  - Verify
  properties:
  - type: OpenAPI
    url: openapi/arkose-labs-verify-api-openapi.yml
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-request.json
  - type: x-json-schema
    url: json-schema/arkose-labs-verify-response.json
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/calling-verify-v4-api
  - type: APIReference
    url: https://developer.arkoselabs.com/docs/verify-api-v4-response-fields
  - type: Documentation
    url: https://developer.arkoselabs.com/docs/edge-api-request-parameters
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.arkoselabs.com/
- type: DomainSecurity
  url: security/arkose-labs-domain-security.yml
- type: DeveloperPortal
  url: https://developer.arkoselabs.com/
- type: Documentation
  url: https://developer.arkoselabs.com/docs/arkose-labs-api-guide
- type: APIReference
  url: https://developer.arkoselabs.com/docs/verify-request-and-response-schemas
- type: GettingStarted
  url: https://developer.arkoselabs.com/docs/arkose-labs-platform-quickstart
- type: Blog
  url: https://www.arkoselabs.com/blog/
- type: Support
  url: https://www.arkoselabs.com/support/
- type: HelpCenter
  url: https://support.arkoselabs.com/
- type: TermsOfService
  url: https://www.arkoselabs.com/terms-of-use/
- type: PrivacyPolicy
  url: https://www.arkoselabs.com/privacy-policy/
- type: StatusPage
  url: https://status.arkoselabs.com
- type: Deprecation
  url: https://developer.arkoselabs.com/docs/end-of-life-communications
- type: Security
  url: https://hackerone.com/arkose_labs
- type: LLMsTxt
  url: llms/arkose-labs-llms.txt
- type: Authentication
  url: authentication/arkose-labs-authentication.yml
- type: Lifecycle
  url: lifecycle/arkose-labs-lifecycle.yml
- type: ErrorCatalog
  url: errors/arkose-labs-problem-types.yml
- type: Conventions
  url: conventions/arkose-labs-conventions.yml
- type: Conformance
  url: conformance/arkose-labs-conformance.yml
- type: DataModel
  url: data-model/arkose-labs-data-model.yml
- type: X-MCPServerCandidate
  url: mcp/arkose-labs-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: WellKnown
  url: well-known/arkose-labs-well-known.yml
- type: Overlay
  url: overlays/arkose-labs-verify-overlay.yaml
- type: VulnerabilityDisclosure
  url: security/arkose-labs-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Arkose Labs API — frequently asked questions

Does Arkose Labs have an API?

Yes. APIs.io lists 3 APIs from Arkose Labs, including Arkose Labs Edge API, Arkose Labs Schema API and Arkose Labs Verify API.

Is there an OpenAPI specification for the Arkose Labs API?

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

How do I authenticate with the Arkose Labs API?

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

Is the Arkose Labs API ready for AI agents?

Arkose Labs has a Kin Score of 29.9 out of 100 (thin) and an Agent Readiness score of 18.0 (agent-aware), scored by API Evangelist on 2026-11-02.

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