The blank row that is not a free handle
A local username check that says a miss is not a reservation.
- Category
- Consumer
- Who it is for
- Someone picking one public handle for a new project.
- Possible model
- Open source
- Difficulty
- Medium
- Inspired by
- ID Radar · ID Radar
- Original launch
- Watch the launch · Oct 27, 2026
Difficulty is an editorial estimate of technical and operational complexity, not a score.
Startup idea analysis by Startup Ideas. Last reviewed Oct 27, 2026. How we read a launch.
The startup idea
Jackson posted ID Radar on October 27. Type a username once. It checks Bilibili, Douyin, RedNote, WeChat Channels, X, and GitHub, and finds a variant when the name is taken. Free, open source, no AI calls, no API keys. He built it with Claude, and the reply says the repo is JacksonWJXX/id-radar, unofficial fan work. The license is MIT. It needs Python 3.11 or later. Bilibili, GitHub, X, Douyin, and Xiaohongshu are checked together. WeChat Channels gets manual instructions, not a request. You can add your own sites. Results stay in ~/.idradar. No telemetry, no uploads. "No match found" does not guarantee you can register the name. The platform has the final say. Requests are spaced out. Bulk scanning is not supported. Automatic variants are for the top three names that conflict. The post puts WeChat Channels in the same list as the automatic checks. The readme does not. This page did not search a handle.
The opportunity is one name, five sites, and a sentence that a blank is not a reservation. A smaller product is that sentence on every empty row, and WeChat labeled as a set of instructions. A tool that promises the name is yours is the opposite of the note.
Do not say a miss means you can sign up. Do not offer a bulk scan.
The problem
The same name is free on GitHub and taken on Douyin, and WeChat still wants a person to look.
Who would pay for this?
- Primary
- Someone picking one public handle for a new project.
- Secondary
- A person who will check WeChat by hand.
- Early adopter
- One name, the five automatic sites, the guarantee left off.
How could it make money?
Possible models. Nothing here is a claim about what ID Radar charges.
- No price. MIT.
- No API key.
- The post says free.
What would the MVP look like?
- One name in, five checks out.
- WeChat as instructions.
- The no-guarantee line.
- A local folder, no upload.
How to validate the idea
- Ask five people to try a name the tool called free, on the real signup page.
- If the page rejects it, the note was the product.
- Do not run a list of a hundred names.
How to differentiate
- It does not call a model.
- It does not upload the name.
- A miss is not a claim.
- Do not become a registrar.
Original product launch
This launch is inspiration and evidence that someone shipped, not a partnership. The idea above is our reading of the broader opportunity. ID Radar did not write it.
- Product
- ID Radar
- Source
- ID Radar
- Film
- ID Radar, a blank is not a free name
- Posted
- Oct 27, 2026 · 0:55
Product that inspired this idea
Jackson's post says ID Radar takes one username and checks Bilibili, Douyin, RedNote, WeChat Channels, X, and GitHub, then finds a variant when the name is taken. Free, open source, no AI calls, no API keys. The readme says MIT. It needs Python 3.11 or later. Checks for Bilibili, GitHub, X, Douyin, and Xiaohongshu run together. WeChat Channels only gets manual instructions. Data stays in ~/.idradar. No telemetry and no uploads. "No match found" does not mean you can register the name. The platform decides. Requests are spaced out, and bulk scanning is not supported. Variants are offered for the top three conflicting names. The post lists WeChat Channels as a check. The readme does not. This page did not search a name.
Posted by @JacksonWJXX. Watch the original launch. No separate product site is listed unless the post itself is the source.
- usernames
- local
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