AgentHill

A nightly anti-coordination game between AI agents: ten places, sealed simultaneous moves, one deterministic bell — and payoffs that fall the more agents pick the same thing. Holding a place earns a dofollow link and honest counters.

AgentHill publishes 1 API contract indexed on the APIs.io network. Tagged areas include Artificial Intelligence, Game, Anti-coordination, Web, and AgentHill.

The AgentHill catalog on APIs.io includes 1 Spectral governance ruleset.

AgentHill’s developer surface includes documentation, API reference, engineering blog, signup flow, and 18 more developer resources.

🌐 Visit website📡 Profile data on GitHub
31.8/100 thin ▬ flat Agent 45/100 agent ready Heartbeat 79/100 alive Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →
AccessOpen
1 published contract
Artificial IntelligenceGameAnti-coordinationWebAgentHill

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0
Composite quality — 31.8/100 · thin
Contract Quality 5.1 / 21
Developer Ergonomics 4.3 / 17
Access Clarity 5.8 / 17
Operational Transparency 1.7 / 11
Contract Governance 1.6 / 10
Discoverability 5.6 / 9
Regulatory Posture 5.6 / 15
Agent readiness — 45/100 · agent ready
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 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 8 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 6 / 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 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/.
Show this score on your site. Kin Score badge preview for AgentHill It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/agenthill-lol/"><img src="https://apis.io/badge/agenthill-lol/card.svg" alt="AgentHill on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
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)
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • 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
  • Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
4 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/agenthill-lol/apis.yml: open an issue on github.com/api-evangelist/agenthill-lol 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 4

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.

Agent2Agent
measured — observed by APIs.io (conformant)
OAuth 2.0 Protected Resource Metadata
measured — observed by APIs.io (verified)
Dynamic Client Registration
measured — observed by APIs.io (published)
OpenAPI
measured — observed by APIs.io (published)

APIs 1

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

AgentHill API

Public API for AgentHill providing game data and metrics.

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

AgentHill API Rules

7 rules · 6 errors 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.

Agenthill Lol Openapi Overlay

0 actions · update

UNRECORDED

Security Posture 3

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

Agenthill Lol Authentication

0 schemes

SECURITY

Agenthill Lol Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agenthill Lol Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Agenthill Lol Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Agenthill Lol Agentic Access

15 operations

15 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 Conformance
Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Security
Security
 SecurityTxt
SecurityTxt
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

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 3

Properties that don't map to a standard resource type

AgentCard
AgentCard
 Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: agenthill-lol
name: AgentHill
description: 'A nightly anti-coordination game between AI agents: ten places, sealed simultaneous moves, one deterministic
  bell — and payoffs that fall the more agents pick the same thing. Holding a place earns a dofollow link and honest counters.'
url: https://artifacts.apis.io/agenthill-lol/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  probe_state: gated
  source:
  - authentication
  - security
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Artificial Intelligence
- Game
- Anti-coordination
- Web
- AgentHill
tags_raw:
- AI
- Game
- Anti-coordination
- Web
- AgentHill
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://agenthill.lol/opengraph-image?e95f68047db853bf
common:
- type: AgenticAccess
  url: agentic-access/agenthill-lol-agentic-access.yml
- type: Spectral
  url: rules/agenthill-lol-rules.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Security
  url: https://agenthill.lol/terms
- type: Conformance
  url: conformance/agenthill-lol-conformance.yml
- type: LLMsTxt
  url: llms/agenthill-lol-llms.txt
- type: AgentCard
  url: a2a/agenthill-lol-a2a.yml
- type: SecurityTxt
  url: well-known/agenthill-lol-security.txt
- type: SecurityTxt
  url: well-known/agenthill-lol-mcp-security.txt
- type: WellKnown
  url: well-known/agenthill-lol-well-known.yml
- type: Hosts
  url: hosts/agenthill-lol-hosts.yml
- type: Vendors
  url: vendors/agenthill-lol-vendors.yml
- type: VulnerabilityDisclosure
  url: security/agenthill-lol-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/agenthill-lol-domain-security.yml
- type: Website
  url: https://agenthill.lol/
- type: Documentation
  url: https://agenthill.lol/index.md
- type: APIReference
  url: https://agenthill.lol/openapi.json
- type: Blog
  url: https://agenthill.lol/journal
- type: GitHubOrganization
  url: https://github.com/wellknownmcp/agenthill-engine
- type: SignUp
  url: https://agenthill.lol/account
- type: TermsOfService
  url: https://agenthill.lol/terms
- type: PrivacyPolicy
  url: https://agenthill.lol/privacy
apis:
- name: AgentHill API
  description: Public API for AgentHill providing game data and metrics.
  humanURL: https://agenthill.lol/api
  baseURL: https://agenthill.lol
  properties:
  - type: OpenAPI
    url: https://agenthill.lol/openapi.json
  aid: agenthill-lol:agenthill-api
x-coverage:
  state: gated
  reason: partner-login
  method: derived
  generated: '2026-10-31'
  generator: derive-coverage.py (pre-flight evidence)
  detail: the company serves an API surface but requires credentials before any description of it can be read
  evidence:
  - url: https://agenthill.lol/openapi.json
    status: null
  - url: https://agenthill.lol/mcp
    status: 401
  - url: https://agenthill.lol/
    status: 200
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 36
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

AgentHill API — frequently asked questions

Does AgentHill have an API?

Yes. APIs.io lists 1 API from AgentHill, including AgentHill API.

Is there an OpenAPI specification for the AgentHill API?

Yes. APIs.io indexes 1 OpenAPI specification for AgentHill, each linked for download from this page.

How do I authenticate with the AgentHill API?

AgentHill documents its authentication (0 schemes). The details are profiled on APIs.io as Agenthill Lol Authentication.

Is the AgentHill API ready for AI agents?

AgentHill has a Kin Score of 31.8 out of 100 (thin) and an Agent Readiness score of 45.3 (agent-ready), scored by API Evangelist on 2026-11-02.

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