Fairly

Fairly (https://fairly.gg) compares PC game prices across authorized stores and game subscriptions. It shows the real checkout price, the cheapest way to play, all-time lows and what is leaving Game Pass. Prices are shown per region and currency (US/USD, EU/EUR, UK/GBP, TR/TRY). Some store links are affiliate links; the price does not change and ranking never depends on them.

Fairly publishes 2 API contracts indexed on the APIs.io network, including API API, and 1 more. Tagged areas include Gaming, Price Comparison, Open Data, and Fair Pricing.

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

Fairly’s developer surface includes documentation, API reference, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

30.0/100 thin Agent 17/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Gaming Price Comparison Open Data Fair Pricing

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 30.0/100 · thin

Contract Quality 10.8 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 1.4 / 17

Operational Transparency 0.0 / 11

Contract Governance 3.6 / 10

Discoverability 5.8 / 9

Regulatory Posture 1.3 / 15

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 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 Government & Public Sector 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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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 Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

10 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 8.5 — up to +18.3 composite points Ask about this →
Developer Ergonomics scores 26.2 — up to +14.8 composite points Ask about this →
Operational Transparency scores 0.0 — up to +13.0 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/fairly-gg/apis.yml: open an issue on github.com/api-evangelist/fairly-gg 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 2

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

Fairly API

Real prices for PC games, including checkout fees, and the cheapest way to play.

Fairly API API

Real prices for PC games, including checkout fees, and the cheapest way to play. Data is licensed CC BY 4.0, attribution: "Fairly"; game cover images are not covered by that lic...

Semantic Vocabularies 1

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

Fairly Gg Context

68 classes · 155 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Fairly API Rules

43 rules · 36 error-severity 3 warn-severity 4 info-severity

SPECTRAL

JSON Schema 6

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

ApiResponseOfDiscoverPageModel

8 properties

JSON SCHEMA

ApiResponseOfIReadOnlyListOfDiscoverTierModel

8 properties

JSON SCHEMA

ApiResponseOfIReadOnlyListOfGameSummary

8 properties

JSON SCHEMA

ApiResponseOfIReadOnlyListOfHistoryPoint

8 properties

JSON SCHEMA

ApiResponseOfIReadOnlyListOfSourceStatus

8 properties

JSON SCHEMA

ApiResponseOfIReadOnlyListOfSubscriptionSummaryModel

8 properties

JSON SCHEMA

Security Posture 1

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

Fairly Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

About

About

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: fairly-gg
name: Fairly
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://fairly.gg/opengraph-image?d79f5c868234ad53
description: Fairly (https://fairly.gg) compares PC game prices across authorized stores and game subscriptions. It shows
  the real checkout price, the cheapest way to play, all-time lows and what is leaving Game Pass. Prices are shown per region
  and currency (US/USD, EU/EUR, UK/GBP, TR/TRY). Some store links are affiliate links; the price does not change and ranking
  never depends on them.
url: https://artifacts.apis.io/fairly-gg/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-07 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-07'
modified: '2026-11-07'
tags:
- Gaming
- Price Comparison
- Open Data
- Fair Pricing
tags_raw:
- Gaming
- Price Comparison
- API
- Open Data
- Fair Pricing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/fairly-gg-rules.yml
- type: JSONLD
  url: json-ld/fairly-gg-context.jsonld
- type: Vocabulary
  url: vocabulary/fairly-gg-vocabulary.yml
- type: DataModel
  url: data-model/fairly-gg-data-model.yml
- type: ErrorCatalog
  url: errors/fairly-gg-problem-types.yml
- type: Conformance
  url: conformance/fairly-gg-conformance.yml
- type: LLMsTxt
  url: llms/fairly-gg-llms.txt
- type: WellKnown
  url: well-known/fairly-gg-well-known.yml
- type: Hosts
  url: hosts/fairly-gg-hosts.yml
- type: Vendors
  url: vendors/fairly-gg-vendors.yml
- type: DomainSecurity
  url: security/fairly-gg-domain-security.yml
- type: Website
  url: https://fairly.gg/
- type: DeveloperPortal
  url: https://fairly.gg/developers
- type: Documentation
  url: https://api.fairly.gg/docs
- type: APIReference
  url: https://api.fairly.gg/docs/interactive
- type: PrivacyPolicy
  url: https://fairly.gg/privacy
- type: About
  url: https://fairly.gg/about
apis:
- name: Fairly API
  description: Real prices for PC games, including checkout fees, and the cheapest way to play.
  humanURL: https://fairly.gg/developers
  baseURL: https://api.fairly.gg/v1
  aid: fairly-gg:fairly-api
- aid: fairly-gg:fairly-api-api
  name: Fairly API API
  description: 'Real prices for PC games, including checkout fees, and the cheapest way to play. Data is licensed CC BY 4.0,
    attribution: "Fairly";

    game cover images are not covered by that license. Versioning and deprecation policy: https://fairly.gg/developers#versioning.
    Some store

    links are affiliate links; Fai'
  humanURL: https://fairly.gg/developers
  baseURL: https://api.fairly.gg/
  properties:
  - type: OpenAPI
    url: openapi/_original/fairly-gg-api-openapi.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-iread-only-list-of-subscription-summary-model-schema.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-iread-only-list-of-discover-tier-model-schema.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-iread-only-list-of-history-point-schema.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-iread-only-list-of-source-status-schema.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-iread-only-list-of-game-summary-schema.json
  - type: JSONSchema
    url: json-schema/fairly-gg-api-response-of-discover-page-model-schema.json
x-enrichment:
  date: '2026-11-07'
  status: enriched
  artifacts_added: 18
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Fairly API — frequently asked questions

Does Fairly have an API?

Yes. APIs.io lists 2 APIs from Fairly, including Fairly API and Fairly API API.

Is there an OpenAPI specification for the Fairly API?

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

Is the Fairly API ready for AI agents?

Fairly has a Kin Score of 30.0 out of 100 (thin) and an Agent Readiness score of 16.5 (agent-aware), scored by API Evangelist on 2026-11-13.

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