Engineer at @polar_sh. Builder in public to the void. Catalan and Romanian living in Barcelona. Occasionally serious.
Barcelona
Joined August 2010
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- Following642
- Followers4.7K
- Likes2.4K
I’m a bit biased but this talk is really top!
You’ll get a firsthand look at how we handle API versioning at Polar
Two weeks ago, I had the chance to talk about API Versioning at the very first @FastAPI Conf.
It was truly amazing ✨
Replay is now available 👇
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This team ships fast. And now you can operate your Polar org using official MCP plugins for ChatGPT and Claude
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Petru Rares retweeted
time to introduce ourselves 👋
we're a small, remote team of 20, scattered across 9 timezones, with a single goal in mind.
build the best financial layer for intelligent software.
say hi → polar.sh/company
Agentic Checkouts are now available at @polar_sh 🤖
introducing agentic checkouts ✨
agents can now pay on any Polar checkout, with your approval, through @agentcardhq.
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Usage-based billing at scale it’s not easy. Even Google has this problem!
At @polar_sh we are fixing this issue for every merchant on our platform.
Hey @OfficialLoganK , can you please explain why Gemini AI Studio "spend caps" don't actually work?
I set a spend cap at $80 for a project; an unexpected event blew past this and now it's over $200 owed.
What is the point of setting a "spend cap" that doesn't cap anything?
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Last week, a click in a demo app took 16 seconds. Today, the same click using Outpost took LESS THAN 1 ms 🤯 🤯
This team is really cooking!!
These days going into Friday demos at @polar_sh feels like time traveling far into the future.
I fucking love my team, company and having the privilege of doing this for a living, and at this stage in evolution.
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Petru Rares retweeted
billing for agentic workflows ✨
we're building the most ambitious metering & billing engine for AI software.
a technical deepdive → polar.sh/field-guide
Hey @thsottiaux instead of a new reset, can I get rid of the switch between Codex and ChatGPT? 🙏
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We are building some nice things at Polar, where this should not happen if you don't want it to
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I experienced one of the worst accidents of my life.
I was driving with my wife and my daughter in the back. There were three lines: my lane and two going in the opposite direction.
A car was passing another one, and from nowhere, a second car tried to pass the two. It was driving on my lane; we were about to do a frontal crash, but luckily I turned right and he left.
He crashed with the other two cars and did a flip.
Luckily, the passengers of the two cars are fine. But I’m still thinking how lucky we were. I don’t think we would have survived doing a frontal crash with another car at 100 km/h
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3ms from ingesting an event to know if your user is allowed to perform X action is mind blowing!
Undersold it btw.
This is metering in production across Vercel Functions (lambda) at 5,000 requests/s.
Within 3ms events are ingested, reduced to their meter, pushed across subscribing nodes and read to protect guardrails and balance checks 🏎️
… and we’re just getting started
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Petru Rares retweeted
Introducing: The next evolution of Polar ✨
We’re building the most ambitious metering & billing substrate for AI software.
— Events as the core primitive. A blazing fast, local-first reducer architecture to achieve zero latency metering & entitlement resolution.
— Your business as a definition, version controlled & native to agentic workflows.
— Definition branching for simulating pricing changes, model forecasts & easy deployment to production.
— Signals as business guardrails. Switch to a cheaper AI model when customer’s credits run below a threshold.
— Identities as nested entities under the Customer model. Built for agents & services acting on behalf of the customer.
Coming soon.
Learn more → polar.sh/blog/building-the-n…
We love @FastAPI and Python 🐍
Welcome @polar_sh as a Gold Sponsor of FastAPI Conf! 🎉
Polar handles payments, subscriptions, and sales tax so you can focus on building.
Thank you for being part of the inaugural FastAPI Conf! 🤝
Oct 28, Amsterdam
fastapiconf.com/#supported-b…
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