Itch.io

Itch.io is an indie game marketplace and community platform where developers can publish, sell, and distribute games, assets, and creative tools. Its REST API provides authenticated access to game metadata, developer profile information, bundle and download key management, purchase verification, community ratings, and game distribution data. The API supports OAuth 2.0 implicit flow and API key authentication to enable integrations with developer tools, game launchers, and third-party services.

Itch.io publishes 11 APIs on the APIs.io network, including Auth API, Builds API, Bundles API, and 8 more. Tagged areas include Games, Indie Games, Game Distribution, Game Marketplace, and Developers.

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

Itch.io’s developer surface includes authentication, documentation, engineering blog, pricing, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
44.8/100 developing ▬ flat Agent 34/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreeSelf serve⚡ Free to try
11 APIs
GamesIndie GamesGame DistributionGame MarketplaceDevelopers

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 44.8/100 · developing
Contract Quality 15.4 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 2.7 / 13
Governance 7.0 / 12
Discoverability 7.4 / 10
Agent readiness — 34/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/itch-io: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 11

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

Itch.io Auth API

Authentication operations

Itch.io Builds API

Operations related to wharf builds

Itch.io Bundles API

Operations related to game bundles

Itch.io Collections API

Operations related to user game collections

Itch.io Downloads API

The Downloads API from Itch.io — 1 operation(s) for downloads.

Itch.io Games API

Operations related to itch.io game pages

Itch.io Profile API

Operations related to the authenticated user's profile

Itch.io Search API

Search operations

Itch.io Uploads API

Operations related to game uploads and downloads

Itch.io Users API

User lookup operations

Itch.io Wharf API

Wharf build infrastructure operations (butler/CI integration)

Scroll for all 11

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Itch.io API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 4

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

Build

12 properties

JSON SCHEMA

Game

23 properties

JSON SCHEMA

Upload

15 properties

JSON SCHEMA

User

8 properties

JSON SCHEMA

Examples 4

Example request and response payloads for these APIs.

Get Profile

1 fields

EXAMPLE

List Game Uploads

1 fields

EXAMPLE

List Profile Games

1 fields

EXAMPLE

Wharf Channel

1 fields

EXAMPLE

Security Posture 2

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

Itch Io Authentication

http · 1 scheme

SECURITY

Itch Io Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Itch Io Agentic Access

36 operations · 10 acting

36 operations · 10 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg
GitHubOrg

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 RateLimits
RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

Website
Website
 LinkedIn
LinkedIn
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

X
X

Source (apis.yml)

apis.yml Raw ↑ 
aid: itch-io
name: Itch.io
description: Itch.io is an indie game marketplace and community platform where developers can publish, sell, and distribute
  games, assets, and creative tools. Its REST API provides authenticated access to game metadata, developer profile information,
  bundle and download key management, purchase verification, community ratings, and game distribution data. The API supports
  OAuth 2.0 implicit flow and API key authentication to enable integrations with developer tools, game launchers, and third-party
  services.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/itch-io.png
url: https://raw.githubusercontent.com/api-evangelist/itch-io/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Games
- Indie Games
- Game Distribution
- Game Marketplace
- Developers
apis:
- aid: itch-io:itch-io-auth-api
  name: Itch.io Auth API
  description: Authentication operations
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/itch-io-auth-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-builds-api
  name: Itch.io Builds API
  description: Operations related to wharf builds
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Builds
  properties:
  - type: OpenAPI
    url: openapi/itch-io-builds-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-bundles-api
  name: Itch.io Bundles API
  description: Operations related to game bundles
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Bundles
  properties:
  - type: OpenAPI
    url: openapi/itch-io-bundles-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-collections-api
  name: Itch.io Collections API
  description: Operations related to user game collections
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Collections
  properties:
  - type: OpenAPI
    url: openapi/itch-io-collections-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-downloads-api
  name: Itch.io Downloads API
  description: The Downloads API from Itch.io — 1 operation(s) for downloads.
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Downloads
  properties:
  - type: OpenAPI
    url: openapi/itch-io-downloads-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-games-api
  name: Itch.io Games API
  description: Operations related to itch.io game pages
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Games
  properties:
  - type: OpenAPI
    url: openapi/itch-io-games-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-profile-api
  name: Itch.io Profile API
  description: Operations related to the authenticated user's profile
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Profile
  properties:
  - type: OpenAPI
    url: openapi/itch-io-profile-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-search-api
  name: Itch.io Search API
  description: Search operations
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/itch-io-search-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-uploads-api
  name: Itch.io Uploads API
  description: Operations related to game uploads and downloads
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Uploads
  properties:
  - type: OpenAPI
    url: openapi/itch-io-uploads-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-users-api
  name: Itch.io Users API
  description: User lookup operations
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/itch-io-users-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
- aid: itch-io:itch-io-wharf-api
  name: Itch.io Wharf API
  description: Wharf build infrastructure operations (butler/CI integration)
  humanURL: https://itch.io/docs/api/overview
  baseURL: https://api.itch.io
  tags:
  - Wharf
  properties:
  - type: OpenAPI
    url: openapi/itch-io-wharf-api-openapi.yml
  - type: Documentation
    url: https://itch.io/docs/api/serverside
common:
- type: AgenticAccess
  url: agentic-access/itch-io-agentic-access.yml
- type: DomainSecurity
  url: security/itch-io-domain-security.yml
- type: Authentication
  url: authentication/itch-io-authentication.yml
- type: Website
  url: https://itch.io
- type: Documentation
  url: https://itch.io/docs/api/overview
- type: GitHubOrg
  url: https://github.com/itchio
- type: LinkedIn
  url: https://www.linkedin.com/company/itchio
- type: Blog
  url: https://itch.io/blog
- type: Pricing
  url: https://itch.io/docs/creators/pricing
- type: StatusPage
  url: https://www.saashub.com/itch-io-status
- type: X
  url: https://twitter.com/itchio
- type: Plans
  url: https://raw.githubusercontent.com/api-evangelist/itch-io/refs/heads/main/plans/plans.yml
- type: RateLimits
  url: https://raw.githubusercontent.com/api-evangelist/itch-io/refs/heads/main/rate-limits/rate-limits.yml
- type: FinOps
  url: https://raw.githubusercontent.com/api-evangelist/itch-io/refs/heads/main/finops/finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com