Delighted to welcome Unblocked as our newest sponsor. Thank you for sponsoring free and open source software!

*insert caption about not being acquired by @cloudflare.social*

We just donated to @heyapi.dev as part of our open source donation program! It's a TypeScript toolkit that turns your OpenAPI spec into a fully typed API for frontend and backend. We use it so much that one of our engineers, Yuri Mikhin, even built the NestJS plugin for it.

Thank you @evilmartians.com for sponsoring Hey API. People like you make projects like this possible!

Turns out no feature is a small thing. Reverted in the latest release, back to the drawing board.

Authoring plugin configuration has always been verbose and painful, especially for deeply nested or complex options. The next release aims to solve this with a new, declarative approach. If you're writing custom plugins on top of Hey API, we'd love your feedback!

The product strategy in a nutshell.

Which OpenAPI codegen should you choose? "Hey API felt like the best balance." – @nyaomaru-dev.bsky.social Link in the comments.

Anthropic is not acquiring @heyapi.dev, an SDK generator that has powered no @anthropic.com SDK since the earliest days of their API.

Congratulations to Alex Rattray and Stainless on getting acquired by @anthropic.com! Hey API quite literally wouldn’t exist without you and your support over the years.

Every docs page now shows the funding status. As alarming as it is, Hey API is easily one of the more sustainable projects.

It’s about 12,000,000 times every month now. And still so early.

Excited to welcome Photon to our growing fleet of sponsors! Thank you for supporting free and open source software!

It’s the small things. before // after

I have tried many OpenAPI -> SDK solutions, and Hey API has the best DX among them: the best client request options shape, the easiest setup, and it just works out of the box.

🚨 BREAKING: Developers are projected to download packages from Hey API, used by @vercel.com and OpenCode, at least 3 million times per week, per npm.

Hey API featured in @apisyouwonthate.com: “We are currently living in an era where people want us to stop caring about quality. It's really great to see the focus on quality and end-user experience in the OpenAPI space.” Thank you @alexanderkaran.bsky.social!

Hey API for all my future React TanStack Query projects.

A picture is worth a thousand words. The latest release brings unrivaled performance on large OpenAPI specifications. Install 👉 `npm i @hey-api/openapi-ts`

Hey API is an incredible tool — an absolute must-have for our team 🙌 I am so glad that I could contribute back and improve it a bit! Tracing those bottlenecks was a fun challenge, and knowing a up to 30x speedup benefits teams of all sizes makes it totally worth it! 🚀

v0.97.0 is out with a huge contribution from @skk.moe! They noticed generation was painfully slow on large OpenAPI specs, traced it to several algorithmic bottlenecks, and fixed them. The result is a 10x-30x performance gain on larger specs, with meaningful improvements on smaller specs as well.

@react.dev Miami x @sentry.io

Thank you to @devlinduldulao.bsky.social for featuring Hey API in this talk at React Miami 🏝️

Please support openapi-ts with a like on @npmx.dev, thank you! npmx.dev/package/@hey...

Milestone announcement! 0 to 1M weekly downloads: 22 months. 1M to 2M weekly downloads: 3 months. All aboard the Hey API line 🚂

"Every year I revisit the same question: What's the best way to generate typesafe, ergonomic frontend code from my API definitions?" Sascha Becker wrote an in-depth review featuring Hey API and our friends at @the-guild.dev. Link in the comments!

“Hey API didn’t have NestJS support—so we built it.” Yuri Mikhin from @evilmartians.com published a new article showcasing a contract-first approach with NestJS. Link in the comments!

If you’re using the new npm website, please leave openapi-ts a like! npmx.dev/package/@hey...

Yuri Mikhin from @evilmartians.com is back with another article, this time showcasing contract-first development with OpenAPI, Fastify, and Hey API. Link in the comments!

Yuri Mikhin from Evil Martians wrote a new guide on setting up a TypeScript application from scratch using React, Zod, MSW, and (shockingly our favorite) Hey API. Give it a read in the comments!

The best* marketing is when your users do the talking. See Devlin Duldulao at React Miami (April 23–24) as he demos how Hey API helped him ship a large-scale React app while writing less than 1% of the codebase.

Hey API ❤️ @mintlify.bsky.social Thank you Mintlify for supporting free and open source software. This little astronaut will get back to work… right after he finishes his lunch.

Excited to announce that Hey API has been acquired… …over 1,000,000 times last week via npm. Thanks for acquiring it!

2026 Community Update!

Announcing the road to oRPC v2! 🎉 We need your input, ideas, and feature requests to make the next major release amazing. This is your chance to shape the future of oRPC. Discuss here: github.com/unnoq/orpc/d...

Hey API ❤️ Opencode Dance for me boy!!

Our sponsor family is growing! 👫 Thank you to OpenCode for supporting Hey API! One day, this astronaut won’t have to dance anymore.

React folks, quiet launch alert 🚀 I just shipped Formisch for React — the form library I originally built for @solidjs.com that people kept begging me to port.

Hey API has reached 3,000,000 monthly downloads! 🎉 Thank you for your support and for making Hey API part of your infrastructure.

Thank you to Luke and the team at Architect for sponsoring Hey API. The little astronaut will make it to morning!

“OpenAPI codegen that just works.” — @rauchg.blue Thank you @rauchg.blue for recognizing @heyapi.dev as a foundational open source project through your personal grant.

Hey API isn't just for tech companies. This little astronaut helps governments worldwide build better digital services for their citizens.

Thank you to our friends at @openstatus.dev and @vercel.com for sponsoring Hey API! 🤝 "A dollar a day keeps the VCs away," they say.

After 617 days, the little astronaut detached from the parent craft and will continue to explore uncharted territory.

Looking for my next role! I thrive where I can help others grow, and where my Vue.js open-source work is supported with time Frontend, AI, remote-friendly, and open to (some) relocations!

It’s time for Pinia Colada 🍹 The latest release v0.82.0 comes with a brand-new plugin for Pinia Colada by @esm.dev. Cheers!

Hey API and chill? 🎥 What do Netflix and Hey API have in common? They both provide great streams! Server-sent events (SSE) are live in v0.81.0. Happy streaming!

Using an API registry? 📦 Now you can quickly fetch the latest spec from @heyapi.dev or @scalar.com with a dead simple syntax.

Hello, Angular 🅰️ Thanks to our incredible community, v0.80.11 comes with Angular v20 support!

One word: oRPC.