How to sell an AI wrapper app: API costs, keys, provider terms and what buyers check

Can I sell an AI wrapper app?

Yes. An app that adds a focused interface, prompts and workflow on top of a model API is a real product with users and revenue, and it sells like any other app: numbers, offer, due diligence, escrow and the App Store transfer (see how to sell an iOS app). Two things are different: the provider accounts and keys don’t move with the app, and buyers spend more time on costs and platform risk.

How do buyers value an AI app?

On profit after API costs, adjusted for how fragile that profit is. AI apps can earn well: RevenueCat’s State of Subscription Apps 2026 found that AI-powered apps generate 41% more revenue per payer but churn 30% faster, and that for products using large language models, the cost to serve each extra subscriber is no longer near zero.

What buyers test, in the words of an M&A adviser writing about AI wrappers (L40°):

• Model-price sensitivity: “Buyers test how sensitive the business is to model-price changes.”
• Platform risk: if a new model release absorbs the app’s core function, “the standalone product can lose relevance quickly.”
• Deal structure: because of that risk, some buyers “lean on earnouts, holdbacks, and staged consideration.”

My own view: an AI app with healthy margins after API costs, real retention and a product that does more than pass text to a model is a normal acquisition for me. I pay through escrow, based on monthly profit (average of the last 3 months) after API and infrastructure costs, adjusted for trend, churn and how exposed the app is to one provider. Try the app valuation calculator with profit after API costs.

What numbers should I prepare?

• API cost per month, by provider and model, for 12 months, next to revenue, so a buyer can see gross margin over time.
• Cost per active user or per paying user, and the heaviest users’ share of API spend.
• Usage limits and abuse controls: rate limits, caps on free usage, what stops one user from running up your bill.
• Subscription metrics: trial conversion, renewals, churn and refunds, which matter more for AI apps given the faster churn (more in selling a subscription app).
• Model dependencies: which models the app uses, whether it can switch providers, and what happened to margins after past price changes.
• Everything else a buyer checks: app due diligence checklist.

Can I transfer my API keys and provider account?

Not the keys. OpenAI’s Services Agreement says customers may not “buy, sell, or transfer API keys from, to, or with a third party”, and OpenAI’s key safety guidance adds that sharing API keys is against its terms. Anthropic advises that anyone who needs Claude API access “should obtain their own key”.

Accounts are a contract question. OpenAI’s agreement lets either party assign it to a successor to substantially all of its assets or business, with 30 days’ written notice. Anthropic’s commercial terms say neither party may assign its rights “without the other party’s prior written consent.” For a single-app sale, the simplest and cleanest route with every provider is the same: the buyer opens their own accounts and keys, and you switch the app over.

How does the handover work for each provider?

From each provider’s terms and help pages, checked September 2026.

Also tell the buyer how each provider treats data, because it affects their privacy policy: OpenAI says API data isn’t used to train its models unless you opt in, Anthropic’s terms say it may not train on customer content, and Google’s Gemini API terms treat free-tier and paid-tier data differently.

What happens to the backend?

A well-built AI app never ships the API key inside the app. OpenAI says never deploy your key in client-side environments like browsers or mobile apps, and Google says the same for Gemini keys: requests go through your own backend or proxy. If your key is in the app binary today, fix that before you sell; buyers look for it, and an exposed key is a cost and security risk.

The backend itself moves like any other project:

• Firebase: a Firebase project is a Google Cloud project; add the buyer as Owner, they accept, attach billing, and you leave.
• Supabase: projects can be transferred between organizations if you own the source organization and the buyer is a member of the target one; some integrations must be removed first, and the target organization pays for usage afterwards.
• Your own server or edge functions: transfer the account or redeploy on the buyer’s infrastructure, then point the app (or a domain you hand over) to it.

Keep a written list of every secret the backend uses (model keys, RevenueCat, analytics, push) and rotate each one to the buyer’s after the handover. The store side: how App Store transfers work.

Which App Store rules should I check before selling?

A buyer will want to know the app won’t run into App Review problems after the sale. The App Review Guidelines most relevant to AI apps:

• 5.1.2(i), data sharing: you must clearly disclose where personal data is shared with third parties, including with third-party AI, and get explicit permission. Make sure the app asks before sending personal data to a model provider.
• 4.2 Minimum functionality and 4.1(a) Copycats: an app that isn’t useful, unique or “app-like” doesn’t belong on the App Store. A thin wrapper is more exposed to this than an app with its own workflow.
• 1.2 User-generated content: if users can share or publish what they create, the rules on filtering, reporting and blocking apply.

How can I get a better price?

• Show margin, not just revenue: clean monthly API cost next to revenue.
• Cut exposure to one model: an app that can switch providers or models is less fragile.
• Cap abuse: sensible free limits and rate limits protect margin and reassure buyers.
• Own the workflow: presets, history, sharing, integrations, whatever makes the app more than a text box. That’s what survives a new model release.
• Move keys to the backend and document the architecture on one page.

I buy AI wrapper apps on iOS (and Android apps when the fit is right), live 6+ months with steady revenue, in deals from $10K to $1M+. The deal usually closes in about 14 days, with no fees for you. Send me the app with your monthly revenue and API costs (average of the last 3 months); I usually reply within a few hours.