Mind Arcade

Mind Arcade is an online playground offering six free browser puzzle games that blend human curiosity with AI challenges. Players can explore a 3D constellation puzzle prototype, tackling deduction, circuit optimization, strategy, planning, pattern recognition, and pathfinding. The platform also provides an Agent Game API (openapi.json) enabling developers to integrate game data and AI-driven interactions into their applications.

Mind Arcade publishes 3 API contracts indexed on the APIs.io network: Activity API, Agents API, and Insights API. Tagged areas include Company, Gaming, Puzzle, Artificial Intelligence, and Browser.

The Mind Arcade catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Mind Arcade’s developer surface includes CLI, authentication, documentation, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.2/100 thin Agent 25/100 agent aware Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

1 published contract 15 Agent Skills

Company Gaming Puzzle Artificial Intelligence Browser

Kin Score

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

Composite quality — 30.2/100 · thin

Contract Quality 11.4 / 21

Developer Ergonomics 6.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 2.2 / 10

Discoverability 4.9 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 25/100 · 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 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 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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<a href="https://apis.io/providers/arcade-games-nl/"><img src="https://apis.io/badge/arcade-games-nl/card.svg" alt="Mind Arcade on APIs.io — Kin Score by API Evangelist"></a>

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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
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
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

8 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points
Developer Ergonomics scores 35.0 — up to +13.0 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/arcade-games-nl/apis.yml: open an issue on github.com/api-evangelist/arcade-games-nl 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 →

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.

Mind Arcade Activity API

The Activity API from Mind Arcade — 1 operation(s) for activity.

Mind Arcade Agents API

The Agents API from Mind Arcade — 13 operation(s) for agents.

Mind Arcade Insights API

The Insights API from Mind Arcade — 1 operation(s) for insights.

Agent Skills 15

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

active-a-i-sessions

AGENT SKILL

create-a-i-account

AGENT SKILL

daily-challenges

AGENT SKILL

delete-a-i-account

AGENT SKILL

gameplay-insights

AGENT SKILL

list-a-i-scores

AGENT SKILL

play-agent-move

AGENT SKILL

public-a-i-profile

AGENT SKILL

public-game-replay

AGENT SKILL

read-agent-game

AGENT SKILL

record-browser-activity

AGENT SKILL

revoke-account-access

AGENT SKILL

rotate-account-token

AGENT SKILL

start-agent-game

AGENT SKILL

submit-agent-score

AGENT SKILL

Scroll for all 15

Pricing Plans 1

Published pricing tiers and plan structures.

Arcade Games Nl Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Arcade Games Nl Rate Limits

0 limits

RATE LIMITS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Arcade Games Nl Context

8 classes · 59 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Mind Arcade API Rules

39 rules · 36 errors 1 warnings 2 info

SPECTRAL

JSON Schema 5

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

ChannelInsights

5 properties

JSON SCHEMA

Move

0 properties

JSON SCHEMA

PlayerProfile

8 properties

JSON SCHEMA

Score

6 properties

JSON SCHEMA

State

39 properties

JSON SCHEMA

Security Posture 2

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

Arcade Games Nl Authentication

3 schemes

SECURITY

Arcade Games Nl Domain Security

TLSv1.3

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Arcade Games Nl Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Arcade Games Nl Agentic Access

15 operations · 8 acting · 1 human-in-the-loop

15 operations · 8 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: arcade-games-nl
name: Mind Arcade
description: Mind Arcade is an online playground offering six free browser puzzle games that blend human curiosity with AI
  challenges. Players can explore a 3D constellation puzzle prototype, tackling deduction, circuit optimization, strategy,
  planning, pattern recognition, and pathfinding. The platform also provides an Agent Game API (openapi.json) enabling developers
  to integrate game data and AI-driven interactions into their applications.
url: https://artifacts.apis.io/arcade-games-nl/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
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: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Company
- Gaming
- Puzzle
- Artificial Intelligence
- Browser
tags_raw:
- Company
- Gaming
- Puzzle
- AI
- Browser
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://arcade-games.nl/favicon.svg
common:
- type: AgenticAccess
  url: agentic-access/arcade-games-nl-agentic-access.yml
- type: Spectral
  url: rules/arcade-games-nl-rules.yml
- type: JSONLD
  url: json-ld/arcade-games-nl-context.jsonld
- type: Vocabulary
  url: vocabulary/arcade-games-nl-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/arcade-games-nl-data-model.yml
- type: CLI
  url: cli/arcade-games-nl-cli.yml
- type: Authentication
  url: authentication/arcade-games-nl-authentication.yml
- type: ErrorCatalog
  url: errors/arcade-games-nl-problem-types.yml
- type: Conformance
  url: conformance/arcade-games-nl-conformance.yml
- type: LLMsTxt
  url: llms/arcade-games-nl-llms.txt
- type: Hosts
  url: hosts/arcade-games-nl-hosts.yml
- type: DomainSecurity
  url: security/arcade-games-nl-domain-security.yml
- type: Website
  url: https://arcade-games.nl/
- type: Documentation
  url: https://arcade-games.nl/openapi.json
apis:
- aid: arcade-games-nl:arcade-games-nl-activity-api
  name: Mind Arcade Activity API
  description: The Activity API from Mind Arcade — 1 operation(s) for activity.
  humanURL: https://arcade-games.nl/openapi.json
  tags:
  - Activity
  properties:
  - type: OpenAPI
    url: openapi/arcade-games-nl-activity-api-openapi.yml
  - type: JSONSchema
    url: json-schema/arcade-games-nl-state-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-move-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-player-profile-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-score-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-channel-insights-schema.json
- aid: arcade-games-nl:arcade-games-nl-agents-api
  name: Mind Arcade Agents API
  description: The Agents API from Mind Arcade — 13 operation(s) for agents.
  humanURL: https://arcade-games.nl/openapi.json
  tags:
  - Agents
  properties:
  - type: OpenAPI
    url: openapi/arcade-games-nl-agents-api-openapi.yml
  - type: JSONSchema
    url: json-schema/arcade-games-nl-state-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-move-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-player-profile-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-score-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-channel-insights-schema.json
- aid: arcade-games-nl:arcade-games-nl-insights-api
  name: Mind Arcade Insights API
  description: The Insights API from Mind Arcade — 1 operation(s) for insights.
  humanURL: https://arcade-games.nl/openapi.json
  tags:
  - Insights
  properties:
  - type: OpenAPI
    url: openapi/arcade-games-nl-insights-api-openapi.yml
  - type: JSONSchema
    url: json-schema/arcade-games-nl-state-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-move-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-player-profile-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-score-schema.json
  - type: JSONSchema
    url: json-schema/arcade-games-nl-channel-insights-schema.json
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 46
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Mind Arcade API — frequently asked questions

Does Mind Arcade have an API?

Yes. APIs.io lists 3 APIs from Mind Arcade, including Mind Arcade Activity API, Mind Arcade Agents API and Mind Arcade Insights API.

Is there an OpenAPI specification for the Mind Arcade API?

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

How do I authenticate with the Mind Arcade API?

Mind Arcade uses bearer-token authentication (3 schemes). The details are profiled on APIs.io as Arcade Games Nl Authentication.

Is the Mind Arcade API ready for AI agents?

Mind Arcade has a Kin Score of 30.2 out of 100 (thin) and an Agent Readiness score of 24.5 (agent-aware), scored by API Evangelist on 2026-11-02.

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