Software asset sale
Starling is a Chrome extension with a hosted service behind it. It drafts replies, quotes and posts for X in the writer's own voice; the writer reviews every draft and presses Post themselves. It was built for people who write on X regularly and want help sounding like themselves.
This is an outright sale of the whole product: source code, extension, backend, website, brand assets and documentation. The buyer owns it and operates it under their own accounts.
An inquiry starts a conversation about buying the product. It is not a customer sign-up, and nothing is charged.
As of 22 September 2026
Product demo
Opens Google Drive in a new tab. Nothing plays until you press play.
What this recording is, and is not
Every product shot is the real extension, website and service, recorded on a development computer. Three things are stood in, and the film says so on screen:
The recording is not evidence of live X integration, AI quality, Stripe transactions or a deployed service.
The product
The customer works on X as usual. Starling adds a button to each post and to X's composer, writes a draft in the customer's voice, and leaves publishing to the customer.
The customer adds the Chrome extension, creates an account on the website and approves the connection. Before anything is sent, the extension shows what it shares and asks.
On a post, one press drafts a reply or a quote. In X's composer, the same button drafts a new post or tightens a rough one.
The draft is typed into X's own text box, where the customer changes anything they like. A side panel answers questions about what to post.
Starling never presses Post, Reply or Schedule post. The extension refuses to click those controls, and automated tests check that it does.
Writing samples and short notes shape later drafts, and one press on the customer's own X profile adds their own posts as samples. Learning from their activity while they browse is a separate choice, and it is off until they turn it on.
Real product screens with synthetic content: a stand-in X page, scripted AI text and made-up accounts on example addresses. Select an image to open it full size.
Possible fit
These are possible uses, not proven demand. Starling has no customers yet, and nothing here promises a business result.
Someone who buys small products and runs them. Starling arrives with billing, usage limits, spending safeguards, an owner dashboard and operations guides, so the remaining work is setup, live testing and launch rather than building.
Someone who wants to operate a writing product for X without starting from nothing, and who is ready to open the accounts, finish the live checks and find the first customers.
A team that writes on X for itself or its clients and wants its own tool. Today each account holds one voice; features for managing many clients in one account are not built.
The sale
The name
"Starling" is not a registered trademark of the seller, and no clearance is claimed. Other companies use the name, including a live United States registration in software classes. The buyer should run their own search and may prefer to rename the product; the details are in the diligence documents.
For the technical reader
Verification
As of 22 September 2026. "Verified" below always means checked on a development computer against stand-ins. Nothing has been verified against live services or in a deployed environment.
Built and present in the source code.
Every result below comes from one development computer. None of it is a live or deployed result.
By design, the seller never holds production credentials.
The seller's own readiness audit says "done for handover, not for customers": what is left needs the buyer's accounts or a live deployment.
The seller's readiness audit and handover guide set all of this out in full and are shared during diligence. Expect the first days on real providers to find issues that stand-ins cannot.
Operating it
Read from each provider's public price list on 19 September 2026, in US dollars. Prices change, so check them before relying on them. No income or margin is promised.
The hosting lines come to about $24.40 a month. The project's planning figure is about $30 a month once a domain and small extras are added.
AI spending varies with usage and with the model the buyer chooses. Starling caps it per request, per plan and per day and month, and the buyer should also set a hard limit with the AI provider.
Price
Asking price
$2,500 USD
For the whole product as described on this page, as a one-time purchase. There is no checkout here: the sale is agreed directly between buyer and seller, in writing.
How a sale would go
You write with your questions and how you would use Starling. We check that the sale suits both sides.
A walkthrough of the product, then access to the source and documents for review, on terms agreed first.
An agreement that lists the assets transferred and any support, so both sides know exactly what is and is not included.
Payment, and any escrow, as the agreement sets out.
The seller delivers the source archive with its checksum. The buyer opens their own accounts and configures them, following the handover guide.
Help with questions during setup, to the extent agreed in writing.
Timing, support, payment method and legal terms are not fixed by this page. They are settled in the written agreement.
Questions
The full product. You buy the source code and assets outright and operate Starling yourself. It is not a subscription to a service run by the seller.
No. It is pre-launch: no customers, no revenue, no user data and no live service. Any figures you see in the demo are synthetic.
The source repository, the Chrome extension and its build process, the backend, the website, the brand assets, the tests, the deployment and configuration files, the documentation, the demo film and agreed handover help. See the full list.
Hosting, OpenAI, Stripe, an email provider that offers SMTP and a Chrome Web Store developer account, plus a registrar account to receive starlingwriter.com. Off-site backup storage and an uptime monitor are recommended. None of these exist for Starling today, and the seller needs access to none of them.
No. The buyer pays the hosting provider and the AI provider directly, under their own accounts. See running costs.
The real extension, website and service recorded on a development computer, with a stand-in X page, scripted AI responses, synthetic accounts and no payment. It does not show the real X site, live AI output, a Stripe transaction or a deployed service.
Building the container image for the first time, opening the accounts, deploying, and running the live checks: real AI drafts, the Stripe sandbox and then a small real payment, email delivery, the extension on the real X site, and Chrome Web Store review. The legal pages are drafts that need the buyer's details and review by counsel. See the full status.
No. There is no Chrome Web Store listing and nothing has been submitted. The buyer publishes it under their own developer account, and Google's review can approve or reject it.
No. It writes drafts into X's own text boxes. The customer reviews them and presses Post. The extension refuses to click X's publishing buttons, and tests check that.
No. Customers need desktop Chrome 120 or later, the extension and an account. The operator runs one hosted service. There is nothing to install on a computer beyond the extension.
That is the buyer's decision after their own trademark search. The seller has not registered the name and claims no clearance; other companies use it. Renaming touches the extension, the website, the brand assets and the emails.
The documentation is written for a buyer starting from nothing: handover, deployment, configuration, operations, payments, publishing and costs. Help beyond that is agreed in writing as part of the sale; this page promises no duration or response time.
Contact
Write to the seller directly. The button opens your email app with the subject filled in.
Or write to michaelshadpour497@gmail.com with the subject "Starling acquisition inquiry".
This page has no form and no analytics. Your message goes only to the seller's inbox and is used only to reply to you about this sale.