# David Blass, - ArkType, better runtime type validation Page: https://stenobird.com/podcast/devtools-fm/david-blass-arktype-better-runtime-type-validation Text version: https://stenobird.com/podcast/devtools-fm/david-blass-arktype-better-runtime-type-validation.md Podcast: [devtools.fm: Developer Tools, Open Source, Software Development](https://stenobird.com/podcast/devtools-fm) Published: 2025-02-17T01:00:00+00:00 Episode link: https://podcasters.spotify.com/pod/show/devtoolsfm/episodes/David-Blass----ArkType--better-runtime-type-validation-e2uvake Audio file: https://anchor.fm/s/dd6922b4/podcast/play/98592846/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2025-1-16%2F394994856-44100-2-e2be2f0b79e77.m4a Processing state: failed JSON: https://stenobird.com/v1/public/podcasts/devtools-fm/episodes/david-blass-arktype-better-runtime-type-validation Duration seconds: 3399 ## Resource This week we talk to David Blass, the creator of ArkType, a runtime validation library for TypeScript. ArkType goes against the mold of other TypeScript validation libraries by using a syntax that is as close to native TypeScript as possible. It's packed with interesting features and has made David a TypeScript performance expert. https://bsky.app/profile/ssalbdivad.dev https://arktype.io/ https://github.com/ssalbdivad https://arktype.io/docs/blog/2.0 Apply to sponsor the podcast: https://devtools.fm/sponsor Become a paid subscriber our patreon, spotify, or apple podcasts for the ad-free episode. https://www.patreon.com/devtoolsfm https://podcasters.spotify.com/pod/show/devtoolsfm/subscribe https://podcasts.apple.com/us/podcast/devtools-fm/id1566647758 https://www.youtube.com/@devtoolsfm/membership ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/devtools-fm/episodes/david-blass-arktype-better-runtime-type-validation/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/devtools-fm/david-blass-arktype-better-runtime-type-validation.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.