William Zhang
@WilliamHYZhang
Agents/Capabilities @OpenAI API | Cofounder @Endgrate | CS @Harvard
Excited to announce my first ship @OpenAI. Let's go!!
Two new additions to the API: 📚 Deep research 🪝 Webhooks
Shipping features before 4th week complete. I love this team sm. 🥳
🇵 🇷 🇴 🇲 🇵 🇹 🇸 are an API primitive now! Centrally manage, version, and optimize prompts. Use (and reuse!) prompts across the Playground, API, Evals, and Stored Completions.
In honor of @MilesPines' 21st bday, we're launching barbot.app, a fun side project we built! 🎉 Discover 3000+ cocktails from the world's best cocktail books, add to your bar to see what you can make, and ask AI to suggest you drinks.
Introducing Keel Cohort 2.0. 4 weeks ago, I graduated from @Harvard. Today, I’m excited to announce Keel Cohort 2.0 — the premier early-stage AI accelerator in NYC. This summer, we’re backing 12 AI teams — 20 founders from 10 top schools. We’re running a 9-week program in our…
Ignore the VC hype cycles. Focus, build, and ship what customers actually need. Join us - we're hiring!
I cofounded Endgrate as a scrappy Harvard freshman 2 yrs ago. Since then, we've quietly built the best integration platform on the market. Last year, we processed over 1B data transfers, mastered niche integration features, and stayed 100% bootstrapped. Year 3, let's do this.🚀
I cofounded Endgrate as a scrappy Harvard freshman 2 yrs ago. Since then, we've quietly built the best integration platform on the market. Last year, we processed over 1B data transfers, mastered niche integration features, and stayed 100% bootstrapped. Year 3, let's do this.🚀

Apple Intelligence is surprisingly bad! I ask it "What apps do you have access to" and it says "Ok, here's the app store". I ask it "What's your favorite thing about me" and it says "That one. No, that one. Or maybe that one. Yep, that one." WTF😂
Endgrate is hiring a founding software engineer! You will have generous compensation/equity and immense impact. If you're interested in building the future of API integrations, check out the role here: endgrate.com/careers
Hands down the best VC program for builders
Contrary Venture Partner applications are now open! If you're a builder on campus, interested in investing in exceptional startups, and want to be part of one of the most selective communities in tech, read on.
An amazing summer with such talented people!
Keel is over. Last week, we wrapped up @KeelVentures with our FIRST-EVER Demo Day, with 12 teams pitching their ventures to a room full of NYC investors. How’d they do? In just 8 weeks, Keel Cohort 1.0… Shipped 11 products 🛠️ Signed 90+ paying customers 📈 Added $1.1M+ ARR…
We are officially half-way through @KeelVentures in NYC! In just 4 weeks, Keel Cohort 1.0 has: - Shipped 8 Products - Signed 50 Paying Customers - Added $400K+ ARR - Raised $450K Uncapped - Built autonomous drones, deployed APIs for APIs, sold 5-in-1 test strips for laced…
Some people need to stop hating and start building! @KeelVentures is awesome, huge props to the organizers and sponsors.
When your startup friends repeatedly click on your competitors cost-per-click ads @RonNachum

We've also released enum support today. Our AI engine will map values from any integration directly into your custom schema. We'll be working on rolling out standardized enum values for our prebuilt schemas in the coming weeks!
On behalf of the entire team at Endgrate, we hope you had a restful, healthy holiday season and wish you a happy new year. We’ve been hard at work and are thrilled to release one of our most comprehensive updates to the platform: endgrate.com/blog/product-u…
I had a great chat with Jon from Oomiji, a B2B marketing tool, on how Endgrate removes the obstacle of creating and maintaining integrations.
B2B marketing tools need integrations to close deals. We recently talked with Jon, the CEO of Oomiji, on how Endgrate helps Oomiji dramatically increase their sales conversion.
Yum yum
Hope everyone had a great Labor day weekend! We're starting the week off with some awesome updates. Our IO improvements have resulted in 30% faster API endpoints across the board, and we now support synchronous /transfer endpoints with a simple flag.
It's been a great summer working on Endgrate with the team. We've worked really closely with our customers, have gotten great feedback around the product, and I am very proud of what we accomplished. Can't wait to see where we're at a year from now!
Long time to see! For our last product update of the summer, we wanted to go all-out on customer feature requests and new integrations. 🧵👇
Calling all builders, engineers, designers, investors, and everything in between - Contrary Venture Partner applications for 2023 are now open!
MIT wifi blocks Clash Royale 💀 also the connection to my MongoDB 💀💀