SDKProof
Measures how well AI writes your library's current API.
What this is
Measures how well AI writes code against your library's current API instead of guessing AI-friendliness.
Our one-line summary — not the founder’s tagline.
What we measured
Nobody else publishes this — it comes from knocking on the door every day.
- Watched by us
- 1 days
- Last checked
- 1d ago
Where it shows up
Every group here is a page of its own — each one checked daily.
The numbersIs it still shipping, is it overpriced, where did it land — and what the price is built from.
League price & chart
No money. No seat. It goes on your record — and in 28 days reality settles it.
Calls are closed while we rebuild accounts. You can still read every one of them.
AI. Launched 1d ago on Peerlist, where it placed #23. Today, it's live, but nothing on the site has changed since we started watching.
Moving right now. The clock only starts when a launch goes quiet.
We check this site every day, ourselves. A founder can post “still working on it” — a claim like that doesn't price. What we price is what we can verify from the outside: evidence, not announcements. The real question isn't “will this be huge?” — it's “will they still be moving in four weeks?”
The market viewHow this launch is priced and ranked in our league — the investor side of the page.
ranked by the reality anchor, not the market price
It placed #23 on Peerlist. It also showed up on 1 other board — but didn't place well enough on any of them, so none of them add to the price. Listing on twelve directories is free; placing well on them isn't.
No matter how much money goes in. There is no pump here — you can't make yourself right by buying more. The line only moves on things that actually happened: an award, revenue that grew, a new platform, code that shipped — or silence.
1 quiet day in between are left out — nothing happened on them. A launch that goes quiet eases down a little at a time — never a cliff you could have run from the night before.
No names, on purpose — a call is worth what it turns out to be worth, not who made it.
How the launch is moving on its own board, day by day — the crowd's attention.
A flat line is normal: votes stop within a day or two of launch, on every board. What's unusual — and what actually counts — is a launch that keeps pulling votes long after its day is over.
About
AI coding assistants keep writing your library's old API. When a library ships a new major version, the model still writes the previous version's code from memory — it looks right, but it doesn't compile against the version you actually have installed. SDKProof measures exactly how often that happens. It gives an AI model real coding tasks for a library, then type-checks the generated code against the real installed package. Compiles = pass. No AI judging another AI — the compiler decides. Scores so far: Prisma 80, Vercel AI SDK 90, Zod 90, Next.js 92, TanStack Query 100. The pattern: the more recently a library changed, the more the AI gets wrong. Open source — run it on any TypeScript package.
Where it launched
2 platformsThe board it did best on sets the price. Every other board only adds to it if the launch also placed high on that board too — because just showing up somewhere isn't an achievement. Listing on twelve directories is free; placing well on them isn't.
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