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

37.3/100 thin ▬ flat Agent 22/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreeSelf serve⚡ Free to try

1 APIs

Games Indie GamesGame DistributionGame MarketplaceDevelopers

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 37.3/100 · thin

Contract Quality 13.2 / 23

Developer Ergonomics 4.3 / 18

Access Clarity 7.1 / 18

Operational Transparency 2.5 / 12

Contract Governance 1.1 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

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 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/itch-io: 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 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

Open Collections 12

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Itch.io Auth API

OPEN COLLECTION

Itch.io Auth Builds API

OPEN COLLECTION

Itch.io Auth Bundles API

OPEN COLLECTION

Itch.io Auth Collections API

OPEN COLLECTION

Itch.io Auth Downloads API

OPEN COLLECTION

Itch.io Auth Games API

OPEN COLLECTION

Itch.io Auth Profile API

OPEN COLLECTION

Itch.io Auth Search API

OPEN COLLECTION

Itch.io Auth Uploads API

OPEN COLLECTION

Itch.io Auth Users API

OPEN COLLECTION

Itch.io Auth Wharf API

OPEN COLLECTION

Scroll for all 12

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

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

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  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: '0.23'
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:
  - Authentication
  tags_raw:
  - 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:
  - Collection
  tags_raw:
  - 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:
  - User
  tags_raw:
  - 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

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