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OpenAI projects for sale

Stalled OpenAI projects looking for a new owner or cofounder. Pre built codebases, real users in some cases, at a fraction of building from scratch.

4 listings · Updated continuously

About this collection

OpenAI API is one of the most common stacks in our marketplace. Builders reach for it because the tooling is mature, the AI models are fluent in it, and the path from idea to running app is short. The same speed that gets a OpenAI API project deployed in a weekend is what often leaves it stalled the next month.

Listings on this page tend to be Chatbots and conversational interfaces, RAG-backed assistants, and Function-calling agents. Some have users, some have only a working deploy. Each listing tells you which build tool the founder used, what is finished end to end, and what is still half wired. You buy what you see, not what was promised.

Every listing is for sale or open to a cofounder match. Most close between $300 and $5,000. There is no commission on the sale and we do not broker the transaction.

Current listings

Browse all projects →
Dojoma Rabbitholes Either

Dojoma Rabbitholes

Professional AI-powered Procrastination search engine.

$1
100%
Sale or cofounder
Monadd For sale

Monadd

Tool that manages address updates for residential and relocation companies

$22,000
100%
For sale
AI Tutor For sale

AI Tutor

AI Tutor with a custom GPT that can be trained on documents. Originally for HSC (Australia) but can easily be changed to whatever else.

$125
70%
For sale
Mood2Song For sale

Mood2Song

AI music recommender that matches your mood or how you're feeling. Or lets our custom personas curate your perfect playlist. Or both!

Built withCursor
$1,000
100%
For sale

Before you buy

What to look for

The five checks that separate a great listing from a regret. Run through them before any wire transfer goes out.

  1. 01

    Open the deploy URL first

    Click around for ten minutes before you read a line of code. If the core flow works in your browser, you are most of the way home. If it does not, ask the founder why before going further.

  2. 02

    Read the README and the AI rules file

    Good OpenAI API listings ship with a clear README plus any agent rules file (.cursorrules, claude.md, AGENTS.md). The rules file tells you how the AI was steered. Missing rules file usually means inconsistent code.

  3. 03

    Run it locally

    Clone the repo, install, run. If the local environment is one command away, the founder kept things tidy. If it takes an hour to boot, expect rough edges elsewhere.

  4. 04

    Inspect: Cost control under heavy use

    OpenAI API projects often need attention here. Verify the founder addressed it, or budget time to fix it after handoff.

  5. 05

    Inspect: Rate limit handling

    OpenAI API projects often need attention here. Verify the founder addressed it, or budget time to fix it after handoff.

  6. 06

    Ask for a 20 minute walkthrough

    Most founders will hop on a call to walk you through the codebase. Twenty minutes saves you a week of cold reading. Use it to ask the awkward questions before you wire money.

After you buy

How to take it over

The hardest middle is already done. Four steps to turn a dormant repo into something live again.

  1. Step 01

    Boot the project locally

    Standard OpenAI API setup: install, configure env, run. If the founder kept the repo tidy this is fast. If not, budget a half day to get oriented.

  2. Step 02

    Ask your AI to map the architecture

    Open the repo in Cursor, Claude Code, Windsurf, or your editor of choice. Ask it for a one-page map of routes, components, and data flow. Saves you a day of cold reading.

  3. Step 03

    Find the smallest broken thing

    Look for the thing the founder almost finished. AI tools are fastest at closing small, specific gaps. Pick one, ship it, build momentum.

  4. Step 04

    Ship the launch on a deadline

    Set a real launch date one to two weeks out. The reason these projects sat in archive folders was usually scope creep, not technical difficulty. A deadline kills both.

About OpenAI API

What OpenAI API is good at, and where it tends to stop short.

GPT-4 / GPT-5 family models exposed via an HTTP API. The default LLM backend for many AI apps.

Typically builds

  • Chatbots and conversational interfaces
  • RAG-backed assistants
  • Function-calling agents

Where buyers should inspect

  • Cost control under heavy use
  • Rate limit handling
  • Prompt injection defenses

FAQ

Common questions

What kinds of OpenAI API projects are typically for sale on Failedups?
Most listings are half built apps that the founder did not launch. SaaS prototypes, marketing sites, dashboards, internal tools. The build tool the founder used is listed on every project. Inspect each listing for what is finished end to end versus what is mocked.
Are these OpenAI API projects production ready?
Most are 60 to 90 percent complete. The deploy works, the core flow runs, but launch items remain. Read the founder note for what is left, run the project locally, and ask the founder for a 20 minute walkthrough before deciding.
Can I migrate a listed OpenAI API project to a different stack?
Yes. The code is yours after the sale. Many buyers port frontends, swap database providers, or move from one host to another. OpenAI API is portable. Plan for a focused refactor sprint if your target stack is meaningfully different.
What is a fair price for a stalled OpenAI API project?
Most close between $300 and $5,000. Projects with paying customers, a strong audience, or unusually clean code go higher. OpenAI API projects without users tend to sit at the lower end. The founder's asking price reflects what they think the project is worth to someone with time to ship it.
Do OpenAI API listings include the deploy and the database?
Most do. The repo, the domain, the hosting accounts, and any database that runs the app are typically part of the sale. The exact bundle is described on each listing. Confirm in writing before paying.
How do I evaluate a OpenAI API codebase before buying?
Open the deploy URL first. Then clone the repo, run it locally, and read the README. Ask the founder for a 20 minute walkthrough on Zoom. Use that call to ask why they stopped, what is half wired, and what they think the smallest path to launch looks like.

Got a stalled OpenAI API project of your own?

Listing is free and we never take a cut on the sale. Buyers on this page are scanning for working OpenAI API code they can ship.

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