skill CX Codex

implement-in-app-purchases — Claude Code skill: setup & use

Q: How to install implement-in-app-purchases in Claude Code?

Run `npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a claude-code` in your terminal.

Configures Unity In-App Purchasing v5, handles receipt validation, and guides migrations from native store billing or third-party SDKs.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a claude-code

Open on GitHub

What implement-in-app-purchases does

This skill directs the agent through com.unity.purchasing v5 setup. It prioritizes a preliminary project scan before changing code, which avoids conflicts with existing store implementations, RevenueCat, or UniPay. Store connection runs through UnityIAPServices.StoreController and Connect(). Calling UnityServices.InitializeAsync is not mandatory for IAP, but it runs fine alongside other gaming services.

Purchases follow a strict two-step flow: receive a PendingOrder, grant the item, and trigger ConfirmPurchase. Never skip confirmation. An unconfirmed purchase triggers redelivery on every subsequent application launch. Client-side verification on iOS with StoreKit 2 is a no-op, requiring server-side validation via jwsRepresentation. Integrating direct-to-customer checkouts via Stripe or Coda requires package version 5.4 or higher.

What it helps with

implement the two-step purchase flow in Unity IAP v5
migrate billing from RevenueCat or native Google BillingClient
handle iOS restore transactions for App Store compliance
set up server-side receipt validation for StoreKit 2

Example prompts for the agent

Set up Unity IAP v5 initialization and event handling using StoreController.
Migrate our in-app purchase logic from Adapty to com.unity.purchasing.
Help me add an iOS purchase restoration flow with ConfirmPurchase.

How to install implement-in-app-purchases

1Skills CLI (Vercel)

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a claude-code

2Manually: put the files in place

~/.claude/skills/implement-in-app-purchases/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/implement-in-app-purchases/

1Skills CLI (Vercel)

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a codex

2Manually: put the files in place

.agents/skills/implement-in-app-purchases/SKILL.md

For all projects use ~/.agents/skills/

1Skills CLI (Vercel)

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a cursor

2Manually: put the files in place

.cursor/skills/implement-in-app-purchases/SKILL.md

Cursor also reads .agents/skills/ and .claude/skills/

1GitHub CLI

gh skill install Unity-Technologies/skills implement-in-app-purchases

2Manually: put the files in place

.github/skills/implement-in-app-purchases/SKILL.md

1Skills CLI (Vercel)

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a gemini-cli

2Platform CLI

gemini skills install https://github.com/Unity-Technologies/skills --path skills/implement-in-app-purchases

Manually: put the files in place

.devin/skills/implement-in-app-purchases/SKILL.md

The legacy .windsurf/skills/ path still works

Skills CLI (Vercel)

npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a opencode

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about implement-in-app-purchases

How to install implement-in-app-purchases in Claude Code?

Run npx skills add Unity-Technologies/skills --skill implement-in-app-purchases -a claude-code in your terminal.

What does the implement-in-app-purchases skill do?

It provides architecture patterns for Unity IAP v5, catalog fetching, entitlement tracking, and migrations from native store wrappers or Adapty.

Can I validate iOS receipts locally with StoreKit 2?

Local validation is a no-op under StoreKit 2. You should send order.Info.Apple?.jwsRepresentation to your backend server instead.

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