Linq.gg website screenshot

Linq.gg

LinQ is the wallet, payments and loyalty platform operated by Galactica Games, Inc. (dba Toffee) for game developers building loyalty programs, real-money gaming (RMG) and branded debit-card experiences. Games integrate a LinQ Wallet account for each player, then deposit, withdraw, transfer and reconcile funds against internal game currencies. The LinQ Wallet Public API is a gRPC / Protocol Buffers surface published on the Buf Schema Registry as buf.build/linq/linq, organised into Geo (IP and coordinate restriction checks), Auth (anonymous game sign-in and wallet-linked user sign-in), Money (accounts, balances, replenishment orders, transfers, Brazil Pix, operations history) and Sandbox (integration-test helpers) modules. Client libraries are generated from the registry for TypeScript, JavaScript and other targets, and a first-party Unity SDK handles PCI-compliant native card and Apple Pay checkout on device.

Linq.gg publishes 1 API on the APIs.io network. Tagged areas include Company, Gaming, Payments, Wallets, and Loyalty.

Linq.gg’s developer surface includes authentication, sandbox, changelog, documentation, API reference, getting-started guide, support, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub
45.0/100 developing ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessOpen
1 APIs
CompanyGamingPaymentsWalletsLoyaltyFintechReal-Money GaminggRPCGeolocationAuthentication

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 45.0/100 · developing
Contract Quality 5.7 / 21
Developer Ergonomics 11.2 / 17
Access Clarity 4.9 / 17
Operational Transparency 3.5 / 11
Contract Governance 1.9 / 10
Discoverability 6.5 / 9
Regulatory Posture 10.3 / 15
Agent readiness — 23/100 · 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 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 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
Regulatory Posture applies to this provider. Its tags matched the Payments 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/.
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/linqgg: 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 →

APIs 1

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

LinQ Wallet Public API

gRPC / Protocol Buffers API for integrating a game with LinQ Wallet services. Covers geo restriction checks by IP and coordinates, anonymous and wallet-linked user authenticatio...

Security Posture 2

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

Linqgg Authentication

5 schemes

SECURITY

Linqgg Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 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

X-MCPServerCandidate
X-MCPServerCandidate
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 Components
Components
 DataModel
DataModel

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Compliance
Compliance

Operate 4

Status, limits, changes, and where to get help

Deprecation
Deprecation
 ChangeLog
ChangeLog
 Roadmap
Roadmap
 Support
Support

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

Protobuf
Protobuf

Source (apis.yml)

apis.yml Raw ↑ 
aid: linqgg
name: Linq.gg
description: LinQ is the wallet, payments and loyalty platform operated by Galactica Games, Inc. (dba Toffee) for game developers
  building loyalty programs, real-money gaming (RMG) and branded debit-card experiences. Games integrate a LinQ Wallet account
  for each player, then deposit, withdraw, transfer and reconcile funds against internal game currencies. The LinQ Wallet
  Public API is a gRPC / Protocol Buffers surface published on the Buf Schema Registry as buf.build/linq/linq, organised into
  Geo (IP and coordinate restriction checks), Auth (anonymous game sign-in and wallet-linked user sign-in), Money (accounts,
  balances, replenishment orders, transfers, Brazil Pix, operations history) and Sandbox (integration-test helpers) modules.
  Client libraries are generated from the registry for TypeScript, JavaScript and other targets, and a first-party Unity SDK
  handles PCI-compliant native card and Apple Pay checkout on device.
url: https://raw.githubusercontent.com/api-evangelist/linqgg/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://framerusercontent.com/images/IDaPLV2CTzzUnLl1BCRzzHVprF4.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-operator: Galactica Games, Inc. (dba Toffee)
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Gaming
- Payments
- Wallets
- Loyalty
- Fintech
- Real-Money Gaming
- gRPC
- Geolocation
- Authentication
tags_raw:
- Company
- Gaming
- Payments
- Wallet
- Loyalty
- Fintech
- Real Money Gaming
- gRPC
- Geolocation
- Authentication
apis:
- aid: linqgg:linq-wallet-public-api
  name: LinQ Wallet Public API
  description: gRPC / Protocol Buffers API for integrating a game with LinQ Wallet services. Covers geo restriction checks
    by IP and coordinates, anonymous and wallet-linked user authentication, account balances, deposits and withdrawals against
    internal game currencies, replenishment and transfer orders, native card / Apple Pay / Brazil Pix checkout, operations
    history and sandbox test helpers. Schemas are published publicly on the Buf Schema Registry; clients are generated per
    language rather than hand-written.
  humanURL: https://docs.linq.gg/
  baseURL: https://services.galactica.games
  tags:
  - Wallets
  - Payments
  - Gaming
  - gRPC
  - Protobuf
  tags_raw:
  - Wallet
  - Payments
  - Gaming
  - gRPC
  - Protobuf
  properties:
  - type: Documentation
    url: https://docs.linq.gg/
  - type: APIReference
    url: https://buf.build/linq/linq
  - type: GettingStarted
    url: https://docs.linq.gg/getting-started
  - type: Protobuf
    url: grpc/linqgg-services.yml
  - type: Authentication
    url: authentication/linqgg-authentication.yml
  - type: ErrorCatalog
    url: errors/linqgg-error-codes.yml
  - type: DataModel
    url: data-model/linqgg-data-model.yml
common:
- type: Website
  url: https://www.linq.gg/
- type: X-MCPServerCandidate
  url: mcp/linqgg-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: DomainSecurity
  url: security/linqgg-domain-security.yml
- type: Protobuf
  url: grpc/linqgg-services.yml
- type: Packages
  url: packages/linqgg-packages.yml
- type: SDKs
  url: packages/linqgg-packages.yml
- type: Authentication
  url: authentication/linqgg-authentication.yml
- type: Conventions
  url: conventions/linqgg-conventions.yml
- type: Idempotency
  url: conventions/linqgg-conventions.yml
- type: ErrorCatalog
  url: errors/linqgg-error-codes.yml
- type: Lifecycle
  url: lifecycle/linqgg-lifecycle.yml
- type: Deprecation
  url: lifecycle/linqgg-lifecycle.yml
- type: Conformance
  url: conformance/linqgg-conformance.yml
- type: Compliance
  url: conformance/linqgg-conformance.yml
- type: Sandbox
  url: sandbox/linqgg-sandbox.yml
- type: ChangeLog
  url: changelog/linqgg-changelog.yml
- type: Components
  url: components/linqgg-components.yml
- type: DataModel
  url: data-model/linqgg-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/linqgg-llms.txt
- type: Roadmap
  url: https://github.com/linqgg/unity-sdk/blob/main/VISION.md
- type: DeveloperPortal
  url: https://docs.linq.gg/
- type: Documentation
  url: https://docs.linq.gg/
- type: APIReference
  url: https://buf.build/linq/linq
- type: GettingStarted
  url: https://docs.linq.gg/getting-started
- type: Support
  url: https://docs.linq.gg/contact
- type: Blog
  url: https://linq.gg/blog
- type: GitHubOrganization
  url: https://github.com/linqgg
- type: TermsOfService
  url: https://linq.gg/terms-of-use
- type: PrivacyPolicy
  url: https://linq.gg/privacy-policy
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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