Appcharge

Appcharge is a monetization and payments platform (merchant of record) for mobile game publishers. It lets studios sell in-game offers direct-to-consumer outside the app stores through a hosted web store, a mobile Checkout SDK, and Payment Links — covering checkout sessions, price localization, coupons and promo codes, refunds, web-store offers (bundles, daily bonuses, rolling/special offers, progress bars, reward calendars, triggered popups), offer components, game-portal content, media assets, translations, financial and analytics reporting, and player personalization/authentication callbacks. The REST API authenticates with an x-publisher-token API-key header; webhooks and Appcharge-to-publisher callbacks are HMAC-SHA256 signed with a replay window; and a hosted MCP server exposes agent access over OAuth 2.0 (authorization_code + PKCE).

Appcharge publishes 1 API on the APIs.io network: Publisher API. Tagged areas include Company, Payments, Monetization, Merchant of Record, and Mobile Games.

The Appcharge catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Appcharge’s developer surface includes documentation, API reference, support, engineering blog, signup flow, authentication, changelog, and 31 more developer resources.

🌐 Visit website 📡 Source on GitHub
56.7/100 developing Agent 82/100 agent native Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 1 MCP Servers 0 Features
CompanyPaymentsMonetizationMerchant of RecordMobile GamesGamingCheckoutIn-Game PurchasesWeb StoreeCommerce

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 56.7/100 · developing
Contract Quality 12.6 / 25
Developer Ergonomics 13.9 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 10.9 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 82/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
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/appcharge: 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

Appcharge Publisher API

The Appcharge Publisher REST API for checkout sessions, refunds, coupons and promo codes, price localization, financial/analytics reporting, web-store offers and components, gam...

MCP Servers

appcharge-mcp.yml

MCP SERVER

Rate Limits

Appcharge Rate Limits

1 limits

RATE LIMITS

Event Specifications

Appcharge Events (V2) Webhooks

Appcharge sends real-time, structured webhook events (Events V2) to a publisher-registered HTTPS endpoint for order lifecycle, web store and game portal interactions, logins, an...

ASYNCAPI

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 AsyncAPI
AsyncAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgenticAccess
AgenticAccess

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Components
Components
 DataModel
DataModel
 Webhooks
Webhooks
 Conformance
Conformance

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 7

Authentication, authorization, and security posture

Authentication
Authentication
 OAuthScopes
OAuthScopes
 Compliance
Compliance
 TrustCenter
TrustCenter
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 DomainSecurity
DomainSecurity

Scroll for all 7

Operate 5

Status, limits, changes, and where to get help

Support
Support
 RateLimits
RateLimits
 StatusPage
StatusPage
 Deprecation
Deprecation
 ChangeLog
ChangeLog

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

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: appcharge
name: Appcharge
description: Appcharge is a monetization and payments platform (merchant of record) for mobile game publishers. It lets studios
  sell in-game offers direct-to-consumer outside the app stores through a hosted web store, a mobile Checkout SDK, and Payment
  Links — covering checkout sessions, price localization, coupons and promo codes, refunds, web-store offers (bundles, daily
  bonuses, rolling/special offers, progress bars, reward calendars, triggered popups), offer components, game-portal content,
  media assets, translations, financial and analytics reporting, and player personalization/authentication callbacks. The
  REST API authenticates with an x-publisher-token API-key header; webhooks and Appcharge-to-publisher callbacks are HMAC-SHA256
  signed with a replay window; and a hosted MCP server exposes agent access over OAuth 2.0 (authorization_code + PKCE).
url: https://raw.githubusercontent.com/api-evangelist/appcharge/refs/heads/main/apis.yml
image: https://appcharge.com/sharing-whatsapp.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- creandum
- ivp
x-tier: profiled
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Payments
- Monetization
- Merchant of Record
- Mobile Games
- Gaming
- Checkout
- In-Game Purchases
- Web Store
- eCommerce
apis:
- name: Appcharge Publisher API
  description: The Appcharge Publisher REST API for checkout sessions, refunds, coupons and promo codes, price localization,
    financial/analytics reporting, web-store offers and components, game-portal content, assets, translations, and player
    personalization/authentication callbacks. Authenticated with the x-publisher-token header; callbacks/webhooks are HMAC-SHA256
    signed.
  humanURL: https://docs.appcharge.com/api-reference/introduction
  baseURL: https://api.appcharge.com
  tags:
  - Payments
  - Checkout
  - Mobile Games
  - Monetization
  properties:
  - type: OpenAPI
    url: openapi/appcharge-openapi.yml
  - type: Documentation
    url: https://docs.appcharge.com/api-reference/introduction
  - type: Overlay
    url: overlays/appcharge-openapi-overlay.yaml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://appcharge.com/
- type: DeveloperPortal
  url: https://docs.appcharge.com/
- type: Documentation
  url: https://docs.appcharge.com/
- type: APIReference
  url: https://docs.appcharge.com/api-reference/introduction
- type: Support
  url: https://help.appcharge.com/hc/en-us
- type: Blog
  url: https://www.appcharge.com/blog
- type: GitHubOrganization
  url: https://github.com/Appcharge
- type: SignUp
  url: https://dashboard.appcharge.com
- type: TermsOfService
  url: https://www.appcharge.com/tc
- type: PrivacyPolicy
  url: https://www.appcharge.com/privacy-policy
- type: Authentication
  url: authentication/appcharge-authentication.yml
- type: OAuthScopes
  url: scopes/appcharge-scopes.yml
- type: Conventions
  url: conventions/appcharge-conventions.yml
- type: ErrorCatalog
  url: errors/appcharge-problem-types.yml
- type: RateLimits
  url: rate-limits/appcharge-rate-limits.yml
- type: Lifecycle
  url: lifecycle/appcharge-lifecycle.yml
- type: StatusPage
  url: https://appcharge.instatus.com
- type: Deprecation
  url: https://docs.appcharge.com/api-reference/versioning-policy
- type: ChangeLog
  url: changelog/appcharge-changelog.yml
- type: Sandbox
  url: sandbox/appcharge-sandbox.yml
- type: Packages
  url: packages/appcharge-packages.yml
- type: SDKs
  url: packages/appcharge-packages.yml
- type: Components
  url: components/appcharge-components.yml
- type: DataModel
  url: data-model/appcharge-data-model.yml
- type: MCPServer
  url: mcp/appcharge-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/appcharge-llms.txt
- type: Overlay
  url: overlays/appcharge-openapi-overlay.yaml
- type: WellKnown
  url: well-known/appcharge-well-known.yml
- type: AsyncAPI
  url: asyncapi/appcharge-events-asyncapi.yml
- type: Webhooks
  url: asyncapi/appcharge-events-asyncapi.yml
- type: Conformance
  url: conformance/appcharge-conformance.yml
- type: Compliance
  url: https://docs.appcharge.com/merchant-of-record/security/about-security-at-appcharge
- type: TrustCenter
  url: security/appcharge-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/appcharge-vulnerability-disclosure.yml
- type: Security
  url: https://docs.appcharge.com/merchant-of-record/security/about-security-at-appcharge
- type: DomainSecurity
  url: security/appcharge-domain-security.yml
- type: AgenticAccess
  url: agentic-access/appcharge-agentic-access.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence