byok.dtdm.us

Bring your own key. Skip the subscription.

AI tools that run in your browser on your own API key. No account, no markup. Open one, or copy its code and host it on your own site.

01Your key stays with youRequests go straight from your browser to the AI provider. Nothing passes through DTDM.

02No accountPaste a key into any tool. Optionally remember it on this device.

03Take the codeEvery tool is a single HTML file. Copy it and host it anywhere.

Tools

/cost-of-living

Enter any city or ZIP and get an itemized monthly cost breakdown: housing, food, transit, healthcare and more, built from current, cited sources.

Research Live search · Itemized table Claude · OpenAI · Gemini v1.0 — Oct 2026

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More tools coming soon.

It's stored in your browser's localStorage only if you tick "Remember on this device". Otherwise it's never saved.
Requests go directly from your browser to your provider (Anthropic, OpenAI, or Google). DTDM never sees your key or your results.
Each tool is one readable HTML file with no dependencies. Open a tool page and use View source to check the request code before you run it.
Use a dedicated key and set a spend limit on it in your provider's console. Delete the key when you're done.

Copied or downloaded tools don't update themselves. Check the version tag on each tool's page for newer releases.