L2Calendar

Multilingual Lineage 2 private server listing platform tracking upcoming and past server openings across every game chronicle, with filters by chronicle, rates, labels, and opening date. Server owners publish announcements with optional VIP placement.

L2Calendar is listed with 1 API on the APIs.io network. Tagged areas include lineage2, MMORPG, Game Servers, Gaming, and server-listing.

L2Calendar’s developer surface includes pricing, engineering blog, signup flow, and 3 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

16.1/100 emerging ▬ flat Agent 0/100 human only Front door AI 1/6 silent Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

1 API

lineage2 MMORPG Game Servers Gaming server-listing llms-txt agent-native-content

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 16.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 0.4 / 17

Access Clarity 9.4 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.0 / 9

Regulatory Posture 0.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 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

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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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/l2calendar: 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 →

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.

llms.txt

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

L2Calendar Agent-Native Content

Agent-native content surface exposing machine-readable summaries via llms.txt and llms-full.txt for AI assistants and crawlers to help players find Lineage 2 servers.

Pricing Plans 1

Published pricing tiers and plan structures.

L2Calendar Plans Pricing

5 plans

PLANS

Security Posture 1

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

L2Calendar Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

name: L2Calendar
description: Multilingual Lineage 2 private server listing platform tracking upcoming and past server openings across every
  game chronicle, with filters by chronicle, rates, labels, and opening date. Server owners publish announcements with optional
  VIP placement.
url: https://raw.githubusercontent.com/api-evangelist/l2calendar/refs/heads/main/apis.yml
created: '2026-09-12'
modified: '2026-09-13'
specificationVersion: '0.21'
image: https://l2calendar.com/images/logo.png
tags:
- lineage2
- MMORPG
- Game Servers
- Gaming
- server-listing
- llms-txt
- agent-native-content
tags_raw:
- lineage2
- mmorpg
- game-servers
- gaming
- server-listing
- llms-txt
- agent-native-content
apis:
- name: L2Calendar Agent-Native Content
  description: Agent-native content surface exposing machine-readable summaries via llms.txt and llms-full.txt for AI assistants
    and crawlers to help players find Lineage 2 servers.
  humanURL: https://l2calendar.com
  image: https://l2calendar.com/images/logo.png
  tags:
  - lineage2
  - MMORPG
  - Game Servers
  - Gaming
  - server-listing
  - llms-txt
  - agent-native-content
  tags_raw:
  - lineage2
  - mmorpg
  - game-servers
  - gaming
  - server-listing
  - llms-txt
  - agent-native-content
  properties:
  - type: LLMsTxt
    url: https://l2calendar.com/llms.txt
  - type: LLMsTxt
    url: https://l2calendar.com/llms-full.txt
maintainers:
- FN: L2Calendar
  url: https://l2calendar.com
x-generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 90
  at: '2026-09-12T11:28:44.508Z'
common:
- type: Website
  url: https://l2calendar.com
- type: DomainSecurity
  url: security/l2calendar-domain-security.yml
- type: Plans
  url: plans/l2calendar-plans-pricing.yml
- type: Pricing
  url: https://l2calendar.com/addnews_vip
- type: Blog
  url: https://l2calendar.com/blog
- type: SignUp
  url: https://l2calendar.com/addnews
x-enrichment:
  date: '2026-09-13'
  status: minimal
  artifacts_added: 4
  pass: local-v3
x-coverage:
  state: none
  reason: no-developer-program
  detail: L2Calendar is a Next.js content platform that publishes llms.txt and llms-full.txt for agents but exposes no public
    API; every OpenAPI/GraphQL/MCP and /.well-known probe 404s and the only /api/ path is an internal Next.js route that 301-redirects
    and is Disallowed in robots.txt.
  evidence:
  - url: https://l2calendar.com/openapi.json
    status: 404
  - url: https://l2calendar.com/graphql
    status: 404
  - url: https://l2calendar.com/api/
    status: 301
  - url: https://l2calendar.com/llms.txt
    status: 200
  checked: '2026-09-13'

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