Guillaume Poncin
Engineering Lead at Alchemy · Team at Stripe
Guillaume Poncin is the director of engineering at Alchemy, a Web developer platform. He previously served as the head of Web at Stripe. During his work at Stripe, Guillaume Poncin launched a fiat-to-cryptocurrency channel and a cross-border payment product using stablecoins. Before joining Stripe, Poncin spent years at Google as a technical lead for Google Books and Google Cloud. Guillaume Poncin graduated from Stanford University.
Current Roles
Investments
News Mentions
STRIPE GENERATED $3.2 BILLION IN FREE CASH FLOW The Information reports that Stripe’s revenue rose by about a third to $6.8B in 2025, its fastest growth since 2021. Free cash flow climbed 52% to $3.2B, while first-quarter 2026 revenue reached $2B. Stripe processes subscription and usage-based pay
RT @Alchemy: Onchain projects used to start the same way: Open a dashboard, copy an API key, paste a private key into .env, npm install 3…
With @Alchemy, signing into the Cronos app is effortless. Sign in with your email. Start trading in under 60 seconds. No seed phrase. No complexity. Read more: https://blog.cronos.com/p/alchemy-rpc-and-gasless-transactions
市场现在低估CLARITY Act清晰法案，就像当初被低估的GENIUS Act天才法案一样。好在，立法后一年的今天，天才法案已经交出了一份答卷。我们可以顺势推演清晰法案通过后会带来什么。 --GENIUS Act一年后的实际变化。 GENIUS Act把稳定币从灰色地带拉入正规监管框架，直接催生了两大变化： 一是发行主体从“双寡头”变成多元生态。Tether推出合规的USAT补齐美国短板，Circle、Paxos、Ripple、BitGo等获OCC联邦特许；SoFi、Revolut推出白标稳定币，Visa、Mastercard、Stripe等140多家机构联合推出Open USD联盟，
Ripping packs, but the cards are real and the money's onchain 🃏 @Collector_Crypt tokenized ~$40M of graded cards on @solana. Rip, trade, or redeem the physical card in seconds. Hundreds of thousands of txns a week. Under 7ms reads. 100% success. It just has to be fast, so it runs on Alchemy.
RT @Alchemy: We fine tuned our compression implementation. The result: large compressed responses come back ~33% faster, connections are st…
Model Context Protocol is quietly becoming the backbone of AI and crypto integration
Interesting theory from Chamath that Stripe will go after visa/mastercard with acquisition of PayPal. PayPal has over 400m consumer accounts and if Stripe gets e2e control, this could be huge for stablecoin adoption. https://x.com/theallinpod/status/2078282819621503276
RT @Alchemy: Claude Code can write the code that talks to a blockchain. Then it guesses the RPC method to call, invents the response, and c…
It’s awesome to work with the @Alchemy team on so many cool things! https://x.com/nikil/status/2077863866571301090